TCDS NUMBER E38NE

U.S. DEPARTMENT OF TRANSPORTATION REVISION: 14*

DATE: August 19th, 2024
FEDERAL AVIATION ADMINISTRATION
CFM INTERNATIONAL, S.A.
TYPE CERTIFICATE DATA SHEET
E38NE MODELS:

CFM56-5B1 CFM56-5B1/P CFM56-5B1/2P CFM56-5B2

CFM56-5B1/3 CFM56-5B2/3 CFM56-5B3/3 CFM56-5B3/3B1
CFM56-5B2/P CFM56-5B2/2P CFM56-5B3/P CFM56-5B3/P1
CFM56-5B4/3 CFM56-5B4/3B1 CFM56-5B5/3 CFM56-5B6/3
CFM56-5B3/2P CFM56-5B3/2P1 CFM56-5B4 CFM56-5B4/P
CFM56-5B4/P1 CFM56-5B4/2P CFM56-5B4/2P1 CFM56-5B5
CFM56-5B5/P CFM56-5B6 CFM56-5B6/P CFM56-5B6/2P
CFM56-5B7 CFM56-5B7/P CFM56-5B8/P CFM56-5B9/P
CFM56-5B7/3 CFM56-5B8/3 CFM56-5B9/3 CFM56-5B9/2P
CFM56-5C2 CFM56-5C2/4 CFM56-5C2/F CFM56-5C2/F4
CFM56-5C2/G CFM56-5C2/G4 CFM56-5C2/P CFM56-5C3/F
CFM56-5C3/F4 CFM56-5C3/G CFM56-5C3/G4 CFM56-5C3/P
CFM56-5C4 CFM56-5C4/P CFM56-5C4/1 CFM56-5C4/1P

Engines of models described herein conforming with this data sheet (which is part of Type Certificate Number E38NE) and other
approved data on file with the Federal Aviation Administration, meet the minimum standards for use in certificated aircraft in
accordance with pertinent aircraft data sheets and applicable portions of the Federal Aviation Regulations, provided they are
installed, operated, and maintained as prescribed by the approved manufacturer's manuals and other approved instructions.

TYPE CERTIFICATE (TC) HOLDER: CFM International, S.A.

2 Boulevard du General Martial Valin
75015 Paris, France

I. MODELS CFM56-5B1 CFM56-5B1/P CFM56-5B1/2P CFM56-5B1/3

TYPE High bypass turbofan; coaxial front fan/booster driven by multi-stage low pressure turbine,
multi-stage compressor with one-stage high pressure turbine and annular combustor.
CFM56-5B/2P & -5B/2P1 SERIES ONLY: Double Annular Combustor
RATINGS (See NOTE 4)

Takeoff (5 min. see NOTE 16), 30,000/ -- -- --

sea level, static thrust, lb. 13,345 daN -- -- --

Maximum continuous, sea 29,090/ -- -- --

level static thrust, lb. 12,940 daN -- -- --

Flat rating AMBIENT TEMPERATURE

Takeoff 86oF / 30oC -- -- --
Maximum continuous 77oF / 25oC -- -- --

FUEL SYSTEM See NOTE 7 for approved fuels

*
PAGE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
REV. 14 13 13 13 10 13 13 11 13 13 13 13 11 11 11 11 11 11 11 11 12 11 13 11 11 11 13 14
LEGEND: "- -" INDICATES "SAME AS PRECEDING MODEL"
"---" NOT APPLICABLE
NOTE: SIGNIFICANT CHANGES ARE BLACK-LINED IN THE LEFT MARGIN.
E38NE 2 of 28

I. MODELS (CONT.) CFM56-5B1 CFM56-5B1/P CFM56-5B1/2P CFM56-5B1/3

Fuel pump / SNECMA P/N 301-797-402-0 -- -- --
(Combined boost and single 301-785-503-0 --- --- ---
element gear-type pump)

Hydromechanical unit 1348M79 -- -- --

(GE Part Number)
Electronic control unit 1820M36 -- 1820M87 ---
(GE Part Number) 1820M89 -- 1820M88 ---
2042M13 -- -- ---
2042M14 -- -- ---
2123M55 -- -- --
2123M56 -- -- --
--- 2121M47 --- ---
--- 2121M48 --- ---
--- 2447M39 --- 2447M39
--- 2458M04 --- 2458M04

Identification plugs 338-046-002-0 338-046-004-0 -- --

(SNECMA Part Number) 338-046-004-0 338-125-301-0 338-046-090-0 ---
338-046-006-0 338-125-305-0 338-046-095-0 ---
338-122-801-0 ---
338-122-805-0 ---
338-125-301-0 ---
338-125-305-0 ---
OIL Synthetic type conforming to GE Specification D50TF1, Type I and Type II.
CFM Service Bulletin CFM56-5B 79-0001 list approved brand oils.

IGNITION SYSTEM GE PART NUMBER

Ignition unit
Unison 9238M66 -- -- --

Two igniter plugs

Unison 1374M12 -- -- --
Champion 1374M13 -- -- --

PRINCIPAL DIMENSIONS INCHES / MILLIMETERS

Length, (fan case forward 102.3 / 2599.7 -- -- --
flange to LPT frame aft
flange)
Width, (fan casing forward 75.12 / 1908 -- -- --
flange diameter)
Height, (bottom of accessory 82.87 / 2105 -- -- --
gearbox to top of fan casing
forward flange)
WEIGHT (dry) Includes basic engine accessories and optional equipment as listed in manufacturers
specification, and engine-mounted portions of the condition monitoring instrumentation.
Pounds 5412.9 -- 5512.9 5412.9
Kilograms 2455.2 -- 2500.6 2455.2
CENTER OF GRAVITY STATION, ENGINE ONLY (REFER TO INSTALLATION DRAWING)
LOCATIONS
Inches 204.8 ± 1 -- -- --
Millimeters 5202 ± 25 -- -- --
E38NE 3 of 28

II. MODELS CFM56-5B2 CFM56-5B2/P CFM56-5B2/2P CFM56-5B2/3

TYPE High bypass turbofan; coaxial front fan/booster driven by multi-stage low pressure turbine,
multi-stage compressor with one-stage high pressure turbine and annular combustor.
CFM56-5B/2P & -5B/2P1 SERIES ONLY: Double Annular Combustor
RATINGS (See NOTE 4)

Takeoff (5 min. see NOTE 16), 31,000/ -- -- --

sea level, static thrust, lb. 13,789 daN -- -- --

Maximum continuous, sea 29,090/ -- -- --

level static thrust, lb. 12,940 daN -- -- --

Flat rating AMBIENT TEMPERATURE

Takeoff 86oF / 30oC -- -- --
Maximum continuous 77oF / 25oC -- -- --

FUEL SYSTEM See NOTE 7 for approved fuels

Fuel pump / SNECMA P/N 301-797-402-0 -- -- --
(Combined boost and single 301-785-503-0 --- --- ---
element gear-type pump)

Hydromechanical unit 1348M79 -- -- --

(GE Part Number)
Electronic control unit 1820M36 -- 1820M87 ---
(GE Part Number) 1820M89 -- 1820M88 ---
2042M13 -- -- ---
2042M14 -- -- ---
2123M55 -- -- --
2123M56 -- -- --
--- 2447M39 --- 2447M39
--- 2458M04 --- 2458M04
--- 2121M47 --- ---
--- 2121M48 --- ---

Identification plugs 338-046-021-0 338-046-023-0 -- --

(SNECMA Part Number) 338-046-023-0 338-122-720-0 338-046-080-0 ---
338-046-026-0 338-122-725-0 338-122-820-0 ---
338-128-660-0 338-122-825-0 ---
338-128-665-0 338-125-320-0 ---
338-125-325-0 ---
338-127-400-0 ---
338-127-405-0 ---
OIL Synthetic type conforming to GE Specification D50TF1, Type I and Type II.
CFM Service Bulletin CFM56-5B 79-0001 list approved brand oils.

IGNITION SYSTEM GE PART NUMBER

Ignition unit
Unison 9238M66 -- -- --

Two igniter plugs

Unison 1374M12 -- -- --
Champion 1374M13 -- -- --

PRINCIPAL DIMENSIONS INCHES / MILLIMETERS

Length, (fan case forward 102.3 / 2599.7 -- -- --
flange to LPT frame aft
flange)
Width, (fan casing forward 75.12 / 1908 -- -- --
flange diameter)
Height, (bottom of accessory 82.8 / 2105 -- -- --
gearbox to top of fan casing
forward flange)
E38NE 4 of 28

II. MODELS (CONT.) CFM56-5B2 CFM56-5B2/P CFM56-5B2/2P CFM56-5B2/3

WEIGHT (dry) Includes basic engine accessories and optional equipment as listed in manufacturers
specification, and engine-mounted portions of the condition monitoring instrumentation.
Pounds 5412.9 -- 5512.9 5412.9
Kilograms 2455.2 -- 2500.6 2455.2
CENTER OF GRAVITY STATION, ENGINE ONLY (REFER TO INSTALLATION DRAWING)
LOCATIONS
Inches 204.8 ± 1 -- -- --
Millimeters 5202 ± 25 -- -- --

III. MODELS CFM56-5B3/P CFM56-5B3/P1 CFM56-5B3/2P CFM56-5B3/2P1

TYPE High bypass turbofan; coaxial front fan/booster driven by multi-stage low pressure turbine,
multi-stage compressor with one-stage high pressure turbine and annular combustor.
CFM56-5B/2P & -5B/2P1 SERIES ONLY: Double Annular Combustor
RATINGS (See NOTE 4)

Takeoff (5 min. see NOTE 16), 32,000/ -- -- --

sea level, static thrust, lb. 14,234 daN -- -- --

Maximum continuous, sea 29,090/ -- -- --

level static thrust, lb. 12,940 daN -- -- --

Flat rating AMBIENT TEMPERATURE

Takeoff 86oF / 30oC -- -- --
Maximum continuous 77oF / 25oC -- -- --

FUEL SYSTEM See NOTE 7 for approved fuels

Fuel pump / SNECMA P/N 301-797-402-0 -- -- --
(Combined boost and single
element gear-type pump)

Hydromechanical unit 1348M79 -- -- --

(GE Part Number)
Electronic control unit 1820M36 --- 1820M87 ---
(GE Part Number) 1820M89 --- 1820M88 ---
2042M13 -- -- --
2042M14 -- -- --
2123M55 -- -- --
2123M56 -- -- --
2121M47 -- --- ---
2121M48 -- --- ---
2447M39 -- --- ---
2458M04 -- --- ---

Identification plugs 338-122-730-0 338-122-733-0 338-122-732-0 338-122-733-0

(SNECMA Part Number) 338-122-732-0 --- 338-122-830-0 ---
338-122-735-0 --- 338-122-835-0 ---
338-128-670-0 --- 338-128-300-0 ---
338-128-675-0 --- 338-128-305-0 ---
338-128-310-0 ---
338-128-315-0 ---
338-128-320-0 ---
338-128-325-0 ---
OIL Synthetic type conforming to GE Specification D50TF1, Type I and Type II.
CFM Service Bulletin CFM56-5B 79-0001 list approved brand oils.
E38NE 5 of 28

III. MODELS (CONT.) CFM56-5B3/P CFM56-5B3/P1 CFM56-5B3/2P CFM56-5B3/2P1

IGNITION SYSTEM GE PART NUMBER
Ignition unit
Unison 9238M66 -- -- --

Two igniter plugs

Unison 1374M12 -- -- --
Champion 1374M13 -- -- --

PRINCIPAL DIMENSIONS INCHES / MILLIMETERS

Length, (fan case forward 102.3 / 2599.7 -- -- --
flange to LPT frame aft
flange)
Width, (fan casing forward 75.12 / 1908 -- -- --
flange diameter)
Height, (bottom of accessory 82.87 / 2105 -- -- --
gearbox to top of fan casing
forward flange)
WEIGHT (dry) Includes basic engine accessories and optional equipment as listed in manufacturers
specification, and engine-mounted portions of the condition monitoring instrumentation
Pounds 5412.9 -- 5512.9 --
Kilograms 2455.2 -- 2500.6 --
CENTER OF GRAVITY STATION, ENGINE ONLY (REFER TO INSTALLATION DRAWING)
LOCATIONS
Inches 204.8 ± 1 -- -- --
Millimeters 5202 ± 25 -- -- --

IV. MODELS CFM56-5B4 CFM56-5B4/P CFM56-5B4/P1 CFM56-5B4/2P

TYPE High bypass turbofan; coaxial front fan/booster driven by multi-stage low pressure turbine,
multi-stage compressor with one-stage high pressure turbine and annular combustor.
CFM56-5B/2P & -5B/2P1 SERIES ONLY: Double Annular Combustor
RATINGS (See NOTE 4)

Takeoff (5 min. see NOTE 16), 27,000/ -- -- --

sea level, static thrust, lb. 12,010 daN -- -- --

Maximum continuous, sea 24,370/ -- -- --

level static thrust, lb. 10,840 daN -- -- --

Flat rating AMBIENT TEMPERATURE

Takeoff 113oF / 45oC -- 122oF / 50oC 113oF / 45oC
Maximum continuous 77oF / 25oC -- -- --

FUEL SYSTEM See NOTE 7 for approved fuels

Fuel pump / SNECMA P/N 301-797-402-0 -- -- --
(Combined boost and single 301-785-503-0 --- --- ---
element gear-type pump)

Hydromechanical unit 1348M79 -- -- --

(GE Part Number)
E38NE 6 of 28

IV. MODELS (CONT.) CFM56-5B4 CFM56-5B4/P CFM56-5B4/P1 CFM56-5B4/2P

Electronic control unit 1820M36 -- --- 1820M87
(GE Part Number) 1820M89 -- --- 1820M88
2042M13 -- -- --
2042M14 -- -- --
2123M55 -- -- --
2123M56 -- -- --
--- 2121M47 -- ---
--- 2121M48 -- ---
--- 2447M39 -- ---
--- 2458M04 -- ---

Identification plugs 338-046-041-0 338-046-043-0 338-046-044-0 338-046-043-0

(SNECMA Part Number) 338-046-043-0 338-122-740-0 --- 338-122-840-0
338-046-046-0 338-122-745-0 --- 338-122-845-0
338-128-680-0 --- 338-125-340-0
338-128-685-0 --- 338-125-345-0
338-128-410-0
338-128-415-0
OIL Synthetic type conforming to GE Specification D50TF1, Type I and Type II.
CFM Service Bulletin CFM56-5B 79-0001 list approved brand oils.

IGNITION SYSTEM GE PART NUMBER

Ignition unit
Unison 9238M66 -- -- --

Two igniter plugs

Unison 1374M12 -- -- --
Champion 1374M13 -- -- --

PRINCIPAL DIMENSIONS INCHES / MILLIMETERS

Length, (fan case forward 102.3 / 2599.7 -- -- --
flange to LPT frame aft
flange)
Width, (fan casing forward 75.12 / 1908 -- -- --
flange diameter)
Height, (bottom of accessory 82.87 / 2105 -- -- --
gearbox to top of fan casing
forward flange)
WEIGHT (dry) Includes basic engine accessories and optional equipment as listed in manufacturers
specification, and engine-mounted portions of the condition monitoring instrumentation
Pounds 5412.9 -- -- 5512.9
Kilograms 2455.2 -- -- 2500.6
CENTER OF GRAVITY STATION, ENGINE ONLY (REFER TO INSTALLATION DRAWING)
LOCATIONS
Inches 204.8 ± 1 -- -- --
Millimeters 5202 ± 25 -- -- --

V. MODELS CFM56-5B3/3 CFM56-5B3/3B1 CFM56-5B4/3B1 CFM56-5B4/3

TYPE High bypass turbofan; coaxial front fan/booster driven by multi-stage low pressure turbine,
multi-stage compressor with one-stage high pressure turbine and annular combustor.
CFM56-5B/2P & -5B/2P1 SERIES ONLY: Double Annular Combustor
RATINGS (See NOTE 4)

Takeoff (5 min. see NOTE 16), 32,000/ -- 27,000/ --

sea level, static thrust, lb. 14,234 daN -- 12,010 daN --

Maximum continuous, sea 29,090/ -- 24,370/ --

level static thrust, lb. 12,940 daN -- 10,840 daN --
E38NE 7 of 28

V. MODELS (CONT.) CFM56-5B3/3 CFM56-5B3/3B1 CFM56-5B4/3B1 CFM56-5B4/3

Flat rating AMBIENT TEMPERATURE
Takeoff 86oF / 30oC -- 122oF / 50oC 113oF / 45oC
Maximum continuous 77oF / 25oC -- -- --

FUEL SYSTEM See NOTE 7 for approved fuels

Fuel pump / SNECMA P/N 301-797-402-0 -- -- --
(Combined boost and single
element gear-type pump)

Hydromechanical unit 1348M79 -- -- --

(GE Part Number)
Electronic control unit 2123M55 -- -- --
(GE Part Number) 2123M56 -- -- --
2447M39 -- -- --
2458M04 -- -- --

Identification plugs 338-122-732-0 338-122-733-0 338-046-044-0 338-046-043-0

(SNECMA Part Number)

OIL Synthetic type conforming to GE Specification D50TF1, Type I and Type II.
CFM Service Bulletin CFM56-5B 79-0001 list approved brand oils.

IGNITION SYSTEM GE PART NUMBER

Ignition unit
Unison 9238M66 -- -- --

Two igniter plugs

Unison 1374M12 -- -- --
Champion 1374M13 -- -- --

PRINCIPAL DIMENSIONS INCHES / MILLIMETERS

Length, (fan case forward 102.3 / 2599.7 -- -- --
flange to LPT frame aft
flange)
Width, (fan casing forward 75.12 / 1908 -- -- --
flange diameter)
Height, (bottom of accessory 82.87 / 2105 -- -- --
gearbox to top of fan casing
forward flange)
WEIGHT (dry) Includes basic engine accessories and optional equipment as listed in manufacturers
specification, and engine-mounted portions of the condition monitoring instrumentation
Pounds 5412.9 -- -- --
Kilograms 2455.2 -- -- --
CENTER OF GRAVITY STATION, ENGINE ONLY (REFER TO INSTALLATION DRAWING)
LOCATIONS
Inches 204.8 ± 1 -- -- --
Millimeters 5202 ± 25 -- -- --

VI. MODELS CFM56-5B4/2P1 CFM56-5B5 CFM56-5B5/P CFM56-5B5/3

TYPE High bypass turbofan; coaxial front fan/booster driven by multi-stage low pressure turbine,
multi-stage compressor with one-stage high pressure turbine and annular combustor.
CFM56-5B/2P & -5B/2P1 SERIES ONLY: Double Annular Combustor
E38NE 8 of 28

RATINGS (See NOTE 4)

Takeoff (5 min. see NOTE 16), 27,000/ 22,000/ -- --

sea level, static thrust, lb. 12,010 daN 9,786 daN -- --

Maximum continuous, sea 24,370/ 20,250/ -- --

level static thrust, lb. 10,840 daN 9,008 daN -- --
E38NE 9 of 28

VI. MODELS (CONT.) CFM56-5B4/2P1 CFM56-5B5 CFM56-5B5/P CFM56-5B5/3

Flat rating AMBIENT TEMPERATURE
Takeoff 122oF / 50oC 113oF / 45oC -- --
Maximum continuous 77oF / 25oC -- -- --

FUEL SYSTEM See NOTE 7 for approved fuels

Fuel pump / SNECMA P/N 301-797-402-0 -- -- --
(Combined boost and single 301-785-503-0 --- ---
element gear-type pump)

Hydromechanical unit 1348M79 -- -- --

(GE Part Number)
Electronic control unit --- 1820M36 -- ---
(GE Part Number) --- 1820M89 -- ---
2042M13 -- -- ---
2042M14 -- -- ---
2123M55 -- -- --
2123M56 -- -- --
--- --- 2121M47 ---
--- --- 2121M48 ---
--- --- 2447M39 --
--- --- 2458M04 --

Identification plugs 338-046-044-0 338-046-050-0 338-046-052-0 --

(SNECMA Part Number) 338-046-052-0 338-122-750-0 ---
338-046-055-0 338-122-755-0 ---
338-128-690-0 ---
338-128-695-0 ---
OIL Synthetic type conforming to GE Specification D50TF1, Type I and Type II.
CFM Service Bulletin CFM56-5B 79-0001 list approved brand oils.

IGNITION SYSTEM GE PART NUMBER

Ignition unit
Unison 9238M66 -- -- --

Two igniter plugs

Unison 1374M12 -- -- --
Champion 1374M13 -- -- --

PRINCIPAL DIMENSIONS INCHES / MILLIMETERS

Length, (fan case forward 102.3 / 2599.7 -- -- --
flange to LPT frame aft
flange)
Width, (fan casing forward 75.12 / 1908 -- -- --
flange diameter)
Height, (bottom of accessory 82.87 / 2105 -- -- --
gearbox to top of fan casing
forward flange)
WEIGHT (dry) Includes basic engine accessories and optional equipment as listed in manufacturers
specification, and engine-mounted portions of the condition monitoring instrumentation.
Pounds 5512.9 5412.9 -- --
Kilograms 2500.6 2455.2 -- --
CENTER OF GRAVITY STATION, ENGINE ONLY (REFER TO INSTALLATION DRAWING)
LOCATIONS
Inches 204.8 ± 1 -- -- --
Millimeters 5202 ± 25 -- -- --
E38NE 10 of 28

VII. MODELS CFM56-5B6 CFM56-5B6/P CFM56-5B6/3 CFM56-5B6/2P

TYPE High bypass turbofan; coaxial front fan/booster driven by multi-stage low pressure turbine,
multi-stage compressor with one-stage high pressure turbine and annular combustor.
CFM56-5B/2P & -5B/2P1 SERIES ONLY: Double Annular Combustor
RATINGS (See NOTE 4)

Takeoff (5 min. see NOTE 16), 23,500/ -- -- --

sea level, static thrust, lb. 10,453 daN -- -- --

Maximum continuous, sea 20,250/ -- -- --

level static thrust, lb. 9,008 daN -- -- --

Flat rating AMBIENT TEMPERATURE

Takeoff 113oF / 45oC -- -- --
Maximum continuous 77oF / 25oC -- -- --

FUEL SYSTEM See NOTE 7 for approved fuels

Fuel pump / SNECMA P/N 301-797-402-0 -- -- --
(Combined boost and single 301-785-503-0 --- --- ---
element gear-type pump)

Hydromechanical unit 1348M79 -- -- --

(GE Part Number)
Electronic control unit 1820M36 -- --- 1820M87
(GE Part Number) 1820M89 -- --- 1820M88
2042M13 -- --- 2042M13
2042M14 -- --- 2042M14
2123M55 -- -- --
2123M56 -- -- --
--- 2121M47 --- ---
--- 2121M48 --- ---
--- 2447M39 -- ---
--- 2458M04 -- ---

Identification plugs 338-046-060-0 338-046-062-0 -- --

(SNECMA Part Number) 338-046-062-0 338-122-760-0 --- 338-122-860-0
338-046-065-0 338-122-765-0 --- 338-122-865-0
338-129-700-0 --- 338-125-360-0
338-129-705-0 --- 338-125-365-0
338-128-430-0
338-128-435-0
OIL Synthetic type conforming to GE Specification D50TF1, Type I and Type II.
CFM Service Bulletin CFM56-5B 79-0001 list approved brand oils.

IGNITION SYSTEM GE PART NUMBER

Two ignition units
Unison 9238M66 -- -- --

Two igniter plugs

Unison 1374M12 -- -- --
Champion 1374M13 -- -- --

PRINCIPAL DIMENSIONS INCHES / MILLIMETERS

Length, (fan case forward 102.3 / 2599.7 -- -- --
flange to LPT frame aft
flange)
Width, (fan casing forward 75.12 / 1908 -- -- --
Flange diameter)
Height, (bottom of accessory 82.87 / 2105 -- -- --
gearbox to top of fan casing
forward flange)
E38NE 11 of 28

VII. MODELS (CONT.) CFM56-5B6 CFM56-5B6/P CFM56-5B6/3 CFM56-5B6/2P

WEIGHT (dry) Includes basic engine accessories and optional equipment as listed in manufacturers
specification, and engine-mounted portions of the condition monitoring instrumentation.
Pounds 5412.9 -- -- 5512.9
Kilograms 2455.2 -- -- 2500.6
CENTER OF GRAVITY STATION, ENGINE ONLY (REFER TO INSTALLATION DRAWING)
LOCATIONS
Inches 204.8 ± 1 -- -- --
Millimeters 5202 ± 25 -- -- --

VIII. MODELS CFM56-5B7 CFM56-5B7/P CFM56-5B7/3 CFM56-5B8/P

TYPE High bypass turbofan; coaxial front fan/booster driven by multi-stage low pressure turbine,
multi-stage compressor with one-stage high pressure turbine and annular combustor.
CFM56-5B/2P & -5B/2P1 SERIES ONLY: Double Annular Combustor
RATINGS (See NOTE 4)

Takeoff (5 min. see NOTE 16), 27,000/ -- -- 21,600/

sea level, static thrust, lb. 12,010 daN -- -- 9,608 daN

Maximum continuous, sea 24,370/ -- -- 19,060/

level static thrust, lb. 10,840 daN -- -- 8,478 daN

Flat rating AMBIENT TEMPERATURE

Takeoff 113oF / 45oC -- -- --
Maximum continuous 77oF / 25oC -- -- --

FUEL SYSTEM See NOTE 7 for approved fuels

Fuel pump / SNECMA P/N 301-797-402-0 -- -- --
(Combined boost and single
element gear-type pump)

Hydromechanical unit 1348M79 -- -- --

(GE Part Number)
Electronic control unit 1820M36 -- --- ---
(GE Part Number) 1820M89 -- --- ---
2042M13 -- --- 2042M13
2042M14 -- --- 2042M14
2123M55 -- -- --
2123M56 -- -- --
--- 2121M47 --- 2121M47
--- 2121M48 --- 2121M48
--- 2447M39 -- --
--- 2458M04 -- --

Identification plugs 338-126-941-0 -- -- 338-130-001-0

(SNECMA Part Number) 338-128-440-0 338-128-450-0 --- ---
338-128-445-0 338-128-455-0 --- ---
338-128-470-0 --- ---
338-128-475-0 --- ---
OIL Synthetic type conforming to GE Specification D50TF1, Type I and Type II.
CFM Service Bulletin CFM56-5B 79-0001 list approved brand oils.

IGNITION SYSTEM GE PART NUMBER

Ignition unit
Unison 9238M66 -- -- --

Two igniter plugs

Unison 1374M12 -- -- --
Champion 1374M13 -- -- --
E38NE 12 of 28

VIII. MODELS (CONT.) CFM56-5B7 CFM56-5B7/P CFM56-5B7/3 CFM56-5B8/P

PRINCIPAL DIMENSIONS INCHES / MILLIMETERS
Length, (fan case forward 102.3 / 2599.7 -- -- --
flange to LPT frame aft
flange)
Width, (fan casing forward 75.12 / 1908 -- -- --
flange diameter)
Height, (bottom of accessory 82.87 / 2105 -- -- --
gearbox to top of fan casing
forward flange)
WEIGHT (dry) Includes basic engine accessories and optional equipment as listed in manufacturers
specification, and engine-mounted portions of the condition monitoring instrumentation.
Pounds 5412.9 -- -- --
Kilograms 2455.2 -- -- --
CENTER OF GRAVITY STATION, ENGINE ONLY (REFER TO INSTALLATION DRAWING)
LOCATIONS
Inches 204.8 ± 1 -- -- --
Millimeters 5202 ± 25 -- -- --

IX. MODELS CFM56-5B8/3 CFM56-5B9/P CFM56-5B9/2P CFM56-5B9/3

TYPE High bypass turbofan; coaxial front fan/booster driven by multi-stage low pressure turbine,
multi-stage compressor with one-stage high pressure turbine and annular combustor.
CFM56-5B/2P & -5B/2P1 SERIES ONLY: Double Annular Combustor.
RATINGS (See NOTE 4)

Takeoff (5 min., see NOTE 16), 21,600/ 23,300/ -- --

sea level, static thrust, lb. 9,608 daN 10,364 daN -- --

Maximum continuous, sea 19,060/ 20,250/ -- --

level static thrust, lb. 8,478 daN 9,008 daN -- --

Flat rating AMBIENT TEMPERATURE

Takeoff 113°F / 45°C -- -- --
Maximum continuous 77°F / 25°C -- -- --

FUEL SYSTEM See NOTE 7 for approved fuels

Fuel pump / SNECMA P/N 301-797-402-0 -- -- --
(Combined boost and single
element gear-type pump)

Hydromechanical unit 1348M79 -- -- --

(GE Part Number)
Electronic control unit 2123M55 -- -- --
(GE Part Number) 2123M56 -- -- --
--- 2042M13 -- ---
--- 2042M14 -- ---
2447M39 -- --- 2447M39
2458M04 -- --- 2458M04
--- 2121M47 --- ---
--- 2121M48 --- ---

Identification plugs 338-130-001-0 338-130-010-0 -- --

(SNECMA Part Number)
OIL Synthetic type conforming to GE Specification D50TF1, Type 1 and Type 11.
CFM Service Bulletin CFM56-5B 79-0001 lists approved brand oils.
IGNITION SYSTEM GE PART NUMBER
E38NE 13 of 28

Ignition unit
Unison 9238M66 -- -- --

Two igniter plugs

Unison 1374M12 -- -- --
Champion 1374M13 -- -- --
E38NE 14 of 28

IX.MODELS (CONT.) CFM56-5B8/3 CFM56-5B9/P CFM56-5B9/2P CFM56-5B9/3

PRINCIPAL DIMENSIONS INCHES / MILLIMETERS
Length, (fan case forward 102.3 / 2599.7 -- -- --
flange to LPT frame aft
flange
Width, (fan casing forward 75.12 / 1908 -- -- --
flange diameter)
Height, (bottom of accessory 82.87 / 2105 -- -- --
gearbox to top of fan
casing forward flange)
WEIGHT (dry) Includes basic engine accessories and optional equipment as listed in manufacturers
specification, and engine-mounted portions of the condition monitoring instrumentation.
Pounds 5412.9 -- 5512.9 5412.9
Kilograms 2455.2 -- 2500.6 2455.2
CENTER OF GRAVITY STATION, ENGINE ONLY (REFER TO INSTALLATION DRAWING)
LOCATIONS
Inches 204.8 ± 1 -- -- --
Millimeters 5202 ± 25 -- -- --

X. MODELS CFM56-5C2 CFM56-5C2/4 CFM56-5C2/F CFM56-5C2/F4

TYPE High bypass turbofan; coaxial front fan/booster driven by multi-stage low pressure turbine,
multi-stage compressor with one-stage high pressure turbine and annular combustor.
Long duct mixed flow exhaust system. Thrust reverser.
RATINGS (See NOTE 4)

Takeoff (5 min. see NOTE 16), 31,200/ -- -- --

sea level, static thrust, lb. 13,878 daN -- -- --

Maximum continuous, sea 28,300/ -- -- --

level static thrust, lb. 12,588 daN -- -- --

Flat rating AMBIENT TEMPERATURE

Takeoff 86oF / 30oC -- -- --
Maximum continuous 77oF / 25oC -- -- --

FUEL SYSTEM See NOTE 7 for approved fuels

Fuel pump / SNECMA P/N 301-785-503-0 -- -- --
(Combined boost and single 301-797-402-0 -- -- --
element gear-type pump)

Hydromechanical unit 1348M79 -- -- --

(GE Part Number)
Electronic control unit 1754M93 -- -- --
(GE Part Number) 1799M97 -- -- --
1799M98 -- -- --
1851M41 -- -- --
1851M42 -- -- --
1851M43 -- -- --
1960M55 -- -- --
1960M56 -- -- --
1960M82 -- -- --
1960M83 -- -- --

Identification plugs 337-151-901-0 337-151-941-0 337-180-401-0 337-180-441-0

(SNECMA Part Number) 337-151-905-0 337-151-951-0 337-180-411-0 337-180-451-0
E38NE 15 of 28

X. MODELS (CONT.) CFM56-5C2 CFM56-5C2/4 CFM56-5C2/F CFM56-5C2/F4

OIL Synthetic type conforming to GE Specification D50TF1, Type I and Type II.
CFM Service Bulletin CFM56-5C 79-0001 list approved brand oils.

IGNITION SYSTEM GE PART NUMBER

Ignition unit
Unison 9238M66 -- -- --

Two igniter plugs

Unison 1374M12 -- -- --
Champion 1374M13 -- -- --

PRINCIPAL DIMENSIONS INCHES / MILLIMETERS

Length, (fan case forward 103.2 / 2622 -- -- --
flange to LPT frame aft
flange)
Width, (fan casing forward 76.61 / 1946 -- -- --
flange diameter)
Height, (bottom of accessory 88.58 / 2250 -- -- --
gearbox to top of fan casing
forward flange)
WEIGHT (dry) Includes basic engine accessories and optional equipment as listed in manufacturers
specification, and engine-mounted portions of the condition monitoring instrumentation
Pounds 5830 -- -- --
Kilograms 2644.4 -- -- --
CENTER OF GRAVITY STATION, ENGINE ONLY (REFER TO INSTALLATION DRAWING)
LOCATIONS
Inches 206.0 ± 1.0 -- -- --
Millimeters 5232.4 ± 25.4 -- -- --

XI. MODELS CFM56-5C2/G CFM56-5C2/G4 CFM56-5C2/P CFM56-5C3/F

TYPE High bypass turbofan; coaxial front fan/booster driven by multi-stage low pressure
turbine, multi-stage compressor with one-stage high pressure turbine and annular
combustor. Long duct mixed flow exhaust system. Thrust reverser.
RATINGS (See NOTE 4)

Takeoff (5 min. see NOTE 16), 31,200/ -- -- 32,500/

sea level, static thrust, lb. 13,878 daN -- -- 14,457 daN

Maximum continuous, sea 28,300/ -- -- 29,400/

level static thrust, lb. 12,588 daN -- -- 13,078daN

Flat rating AMBIENT TEMPERATURE

Takeoff 86oF / 30oC -- -- --
Maximum continuous 77oF / 25oC -- -- --

FUEL SYSTEM See NOTE 7 for approved fuels

Fuel pump / SNECMA P/N 301-785-503-0 -- --- 301-785-503-0
(Combined boost and single 301-797-402-0 -- -- --
element gear-type pump)

Hydromechanical unit 1348M79 -- -- --

(GE Part Number)
E38NE 16 of 28

XI. MODELS (CONT.) CFM56-5C2/G CFM56-5C2/G4 CFM56-5C2/P CFM56-5C3/F

Electronic control unit 1754M93 -- -- --
(GE Part Number) 1799M97 -- -- --
1799M98 -- -- --
1851M41 -- -- --
1851M42 -- -- --
1851M43 -- -- --
1960M55 -- -- --
1960M56 -- -- --
1960M82 -- -- --
1960M83 -- -- --

Identification plugs 337-183-601-0 337-183-641-0 -- 337-180-421-0

(SNECMA Part Number) 337-183-611-0 337-183-651-0 -- 337-180-431-0

OIL Synthetic type conforming to GE Specification D50TF1, Type I and Type II.
CFM Service Bulletin CFM56-5C 79-0001 list approved brand oils.

IGNITION SYSTEM GE PART NUMBER

Two ignition units
Unison 9238M66 -- -- --

Two igniter plugs

Unison 1374M12 -- -- --
Champion 1374M13 -- -- --

PRINCIPAL DIMENSIONS INCHES / MILLIMETERS

Length, (fan case forward 103.2 / 2622 -- -- --
flange to LPT frame aft
flange)
Width, (fan casing forward 76.61 / 1946 -- -- --
flange diameter)
Height, (bottom of accessory 88.58 / 2250 -- -- --
gearbox to top of fan casing
forward flange)
WEIGHT (dry) Includes basic engine accessories and optional equipment as listed in manufacturers
specification, and engine-mounted portions of the condition monitoring instrumentation.
Pounds 5830 -- -- --
Kilograms 2644.4 -- -- --
CENTER OF GRAVITY STATION, ENGINE ONLY (REFER TO INSTALLATION DRAWING)
LOCATIONS
Inches 206.0 ± 1.0 -- -- --
Millimeters 5232.4 ± 25.4 -- -- --

XII. MODELS CFM56-5C3/F4 CFM56-5C3/G CFM56-5C3/G4 CFM56-5C3/P

TYPE High bypass turbofan; coaxial front/fan/booster driven by multi-stage low pressure turbine,
multi-stage compressor with one-stage high pressure turbine and annular combustor. Long
duct mixed flow exhaust system. Thrust reverser.
RATINGS (See NOTE 4)

Takeoff (5 min. see NOTE 16), 32,500/ -- -- --

sea level, static thrust, lb. 14,457 daN -- -- --

Maximum continuous, sea 29,400/ -- -- --

level static thrust, lb. 13,078 daN -- -- --

Flat rating AMBIENT TEMPERATURE

Takeoff 86oF / 30oC -- -- --
Maximum continuous 77oF / 25oC -- -- --

FUEL SYSTEM See NOTE 7 for approved fuels

E38NE 17 of 28

XII. MODELS (CONT.) CFM56-5C3/F4 CFM56-5C3/G CFM56-5C3/G4 CFM56-5C3/P

Fuel pump / SNECMA P/N 301-785-503-0 -- -- ---
(Combined boost and single 301-797-402-0 -- -- --
element gear-type pump)

Hydromechanical unit 1348M79 -- -- --

(GE Part Number)
Electronic control unit 1754M93 -- -- --
(GE Part Number) 1799M97 -- -- --
1799M98 -- -- --
1851M41 -- -- --
1851M42 -- -- --
1851M43 -- -- --
1960M82 -- -- --
1960M83 -- -- --
1960M55 -- -- --
1960M56 -- -- --

Identification plugs 337-180-461-0 337-183-621-0 337-183-661-0 --

(SNECMA Part Number) 337-180-471-0 337-183-631-0 337-183-671-0 --

OIL Synthetic type conforming to GE Specification D50TF1, Type I and Type II.
CFM Service Bulletin CFM56-5C 79-0001 list approved brand oils.

IGNITION SYSTEM GE PART NUMBER

Two ignition units
Unison 9238M66 -- -- --

Two igniter plugs

Unison 1374M12 -- -- --
Champion 1374M13 -- -- --

PRINCIPAL DIMENSIONS INCHES / MILLIMETERS

Length, (fan case forward 103.2 / 2622 -- -- --
flange to LPT frame aft
flange)
Width, (fan casing forward 76.61 / 1946 -- -- --
flange diameter)
Height, (bottom of accessory 88.58 / 2250 -- -- --
gearbox to top of fan casing
forward flange)
WEIGHT (dry) Includes basic engine accessories and optional equipment as listed in manufacturers
specification, and engine-mounted portions of the condition monitoring instrumentation.
Pounds 5830 -- -- --
Kilograms 2644.4 -- -- --
CENTER OF GRAVITY STATION, ENGINE ONLY (REFER TO INSTALLATION DRAWING)
LOCATIONS
Inches 206.0 ± 1.0 -- -- --
Millimeters 5232.4 ± 25.4 -- -- --

XIII. MODELS CFM56-5C4 CFM56-5C4/P CFM56-5C4/1 CFM56-5C4/1P

TYPE High bypass turbofan; coaxial front/fan/booster driven by multi-stage low pressure turbine,
multi-stage compressor with one-stage high pressure turbine and annular combustor. Long
duct mixed flow exhaust system. Thrust reverser.
RATINGS (See NOTE 4)

Takeoff (5 min. see NOTE 16), 34,000/ -- -- --

sea level, static thrust, lb. 15,124 daN -- -- --

Maximum continuous, sea 30,060/ -- -- --

level static thrust, lb. 13,371 daN -- -- --
E38NE 18 of 28

XIII. MODELS (CONT.) CFM56-5C4 CFM56-5C4/P CFM56-5C4/1 CFM56-5C4/1P

Flat rating AMBIENT TEMPERATURE
Takeoff 86oF / 30oC -- -- --
Maximum continuous 77oF / 25oC -- -- --

FUEL SYSTEM See NOTE 7 for approved fuels

Fuel pump / SNECMA P/N 301-797-402-0 -- -- --
(Combined boost and single
element gear-type pump)

Hydromechanical unit 1348M79 -- -- --

(GE Part Number)
Electronic control unit 1754M93 -- -- --
(GE Part Number) 1799M97 -- -- --
1799M98 -- -- --
1851M41 -- -- --
1851M42 -- -- --
1851M43 -- -- --
1960M55 -- -- --
1960M56 -- -- --
1960M82 -- -- --
1960M83 -- -- --

Identification plugs 337-183-801-0 -- 337-183-821-0 --

(SNECMA Part Number) 337-183-811-0 -- 337-183-831-0 --

OIL Synthetic type conforming to GE Specification D50TF1, Type I and Type II.
CFM Service Bulletin CFM56-5C 79-0001 list approved brand oils.

IGNITION SYSTEM GE PART NUMBER

Two ignition units
Unison 9238M66 -- -- --

Two igniter plugs

Unison 1374M12 -- -- --
Champion 1374M13 -- -- --

PRINCIPAL DIMENSIONS INCHES / MILLIMETERS

Length, (fan case forward 103.2 / 2622 -- -- --
flange to LPT frame aft
flange)
Width, (fan casing forward 76.61 / 1946 -- -- --
flange diameter)
Height, (bottom of accessory 88.58 / 2250 -- -- --
gearbox to top of fan casing
forward flange)
WEIGHT (dry) Includes basic engine accessories and optional equipment as listed in manufacturers
specification, and engine-mounted portions of the condition monitoring instrumentation.
Pounds 5830 -- -- --
Kilograms 2644.4 -- -- --
CENTER OF GRAVITY STATION, ENGINE ONLY (REFER TO INSTALLATION DRAWING)
LOCATIONS
Inches 206.0 ± 1.0 -- -- --
Millimeters 5232.4 ± 25.4 -- -- --
E38NE 19 of 28

CERTIFICATION BASIS 1. 14 CFR Part 33, effective February 1, 1965, with Amendments 33-1 through 33-11
thereto.

2. See NOTE 21 for emissions certification basis.

NOTE: CFM56-5B1/2, -5B2/2, -5B4/2, and -5B6/2 have been removed from this type
data sheet since they have been either converted to another CFM56 model rating or are out
of service.
APPLICATION TYPE CERTIFICATE TYPE CERTIFICATE
MODEL DATE ISSUED/AMENDED WITHDRAWN

CFM56-5C2 12/15/88 12/31/91

CFM56-5C3 12/15/88 12/31/91 05/24/93
CFM56-5C2/F 04/03/92 03/01/93
CFM56-5C3/F 04/03/92 03/01/93
CFM56-5B2 08/30/90 05/28/93
CFM56-5B1 08/30/90 02/02/94
CFM56-5B4 06/08/92 02/02/94
CFM56-5B1/2 12/01/92 07/27/94 07/25/02
CFM56-5B2/2 12/01/92 07/27/94 07/25/02
CFM56-5B4/2 12/01/92 07/27/94 07/25/02
CFM56-5C2/G 02/26/93 10/27/94
CFM56-5C3/G 02/26/93 10/27/94
CFM56-5C4 02/26/93 10/27/94
CFM56-5B6/2 04/19/94 10/30/95 07/25/02
CFM56-5B5 04/19/94 03/11/96
CFM56-5B6 04/19/94 03/11/96
CFM56-5C2/4 06/14/95 04/17/96
CFM56-5C2/F4 06/14/95 04/17/96
CFM56-5C2/G4 06/14/95 04/17/96
CFM56-5C3/F4 06/14/95 04/17/96
CFM56-5C3/G4 06/14/95 04/17/96
CFM56-5C4/1 06/21/95 04/17/96
CFM56-5B1/P 02/21/95 06/20/96
CFM56-5B1/2P 02/21/95 06/20/96
CFM56-5B2/P 02/21/95 06/20/96
CFM56-5B2/2P 02/21/95 06/20/96
CFM56-5B3/2P 02/21/95 06/20/96
CFM56-5B4/P 02/21/95 06/20/96
CFM56-5B4/2P 02/21/95 06/20/96
CFM56-5B5/P 02/21/95 06/20/96
CFM56-5B6/P 02/21/95 06/20/96
CFM56-5B6/2P 02/21/95 06/20/96
CFM56-5B3/P 02/21/95 09/10/96
CFM56-5B7 12/03/97 06/07/99
CFM56-5B7/P 12/03/97 11/03/99
CFM56-5B8/P 04/23/01 07/25/02
CFM56-5B9/P 04/23/01 07/25/02
CFM56-5B9/2P 04/23/01 07/25/02
CFM56-5C2/P 12/14/00 08/06/03
CFM56-5C3/P 12/14/00 08/06/03
CFM56-5C4/P 12/14/00 08/06/03
CFM56-5C4/1P 12/14/00 08/06/03
CFM56-5B3/P1 01/25/02 10/25/04
CFM56-5B3/2P1 01/25/02 10/25/04
CFM56-5B4/P1 01/25/02 10/25/04
CFM56-5B4/2P1 01/25/02 10/25/04
CFM56-5B1/3 04/23/05 09/15/06
CFM56-5B2/3 04/23/05 09/15/06
CFM56-5B3/3 04/23/05 09/15/06
CFM56-5B3/3B1 04/23/05 09/15/06
CFM56-5B4/3 04/23/05 09/15/06
CFM56-5B4/3B1 04/23/05 09/15/06
CFM56-5B5/3 04/23/05 09/15/06
E38NE 20 of 28

CERTIFICATION BASIS APPLICATION TYPE CERTIFICATE TYPE CERTIFICATE

(CONT.) MODEL DATE ISSUED/AMENDED WITHDRAWN

CFM56-5B6/3 04/23/05 09/15/06

CFM56-5B7/3 04/23/05 09/15/06
CFM56-5B8/3 04/23/05 09/15/06
CFM56-5B9/3 04/23/05 09/15/06

The Direction Generale de L'Aviation Civile (DGAC) originally type certificated these engine
models under DGAC Certifcate de Type Moteur M17. The FAA validated these products
under Type Certificate Number E38NE. Effective September 28, 2003, the European
Aviation Safety Agency (EASA) began oversight of these products on behalf of France.
EASA Type Certificate Number EASA.E.003 was issued on October 24, 2004.

PRODUCTION BASIS The original production basis was "Agreement de Production" Numbers F.G.007 or P03
issued by the DGAC for engines produced in France by Snecma under license from CFM
International, S.A. Effective September 28, 2004, these engine models were produced
under EASA Production Certificate FR.21G.0007. (See NOTE 10)

IMPORT REQUIREMENTS To be considered for installation on aircraft registered in the United States, each individually
imported engine must be accompanied by an EASA airworthiness approval certificate
(EASA Form 1 – Authorized Release Certificate) or JAA Form 1 issued by Snecma on
behalf of EASA under EASA Production Certificate FR.21G.0007.

The EASA Form 1 – Authorized Release Certificate, or JAA Form 1, should contain the
following statement: ‘The engine covered by this certificate has been examined, tested, and
found to conform to U.S. Type Certificate No. E38NE and is in a condition for safe
operation.’
E38NE 21 of 28

NOTES

NOTE 1. MAXIMUM PERMISSIBLE TEMPERATURES

CFM56-5B SAC CFM56-5B/2P AND - ALL CFM56-5C
COMBUSTOR SERIES 5B/2P1 SERIES ENGINE MODELS
TURBINE EXHAUST GAS As measured by a harness of nine thermocouples located at the second stage low pressure
(T495) (See NOTE 17) turbine vane:
Takeoff (5 min.) 950°C -- --
Maximum continuous 915°C -- --
Starting 725°C -- --
CFM56-5B/2 In-flight --- 850°C ---
Time temperature envelope
Refer to model's S.O.I. CFM-TP.0I.13 -- CFM-TP.OI.12
FUEL PUMP INLET REFER TO THE APPROPRIATE INSTALLATION MANUAL
OIL SUPPLY
Continuous operation 140°C/284°F -- --
Transient (15 minutes) 155°C/311°F -- --

NOTE 2. FUEL AND OIL PRESSURE LIMITS

Fuel limits Operation and air/ground starting pressure limits with the aircraft boost pump operative
extend from a minimum fuel pressure of not less than 5.5 psia (37.9 kPa absolute) above
the true fuel vapor pressure to a maximum of 50 psig (344.8 kPa gauge), relative to
atmosphere, with vapor/liquid ratio of zero at all conditions. See Installation Manual, Part A,
Section 5, Figures A2 and A4. For limits with the aircraft boost pump inoperative, see
Installation Manual, Part A, Section 5, Figures A3 and A5.
Oil limits
The minimum pressure limit at idle is 13 psid (89.6 kPa differential) and varies up to 45 psid
(310.2 kPa differential) at cruise thrust. The maximum pressure limit during
cold starts is 300 psid (2069 kPa differential), limited by a pressure-relief valve.
See NOTE 13.

NOTE 3. ACCESSORY DRIVE PROVISIONS

CFM56-5B ENGINE MODELS CFM56-5C ENGINE MODELS
ELECTRICAL
Rotation (1) CCW --
Speed ratio to core 0.5947 --
Pad Rating (kW) 135 --
Shear Torque (in-lb) 9,492 --
Maximum overhung moment 1,000 --
(in-lb)

HYDRAULIC PUMP
Rotation (1) CCW --
Speed ratio to core 0.256 --
Pad Rating (in-lb) 1,500 --
Shear Torque (in-lb) 4,400 --
Maximum overhung moment 160 183
(in-lb)
(1) CW = CLOCKWISE / CCW = COUNTERCLOCKWISE
E38NE 22 of 28

NOTE 4. Engine ratings are based on calibrated stand performance under the following conditions:

Takeoff thrust is nominally independent of ambient temperature (flat rated) up to ambient

temperature of:

Std + 15°C (30°C, 86°F): CFM56-5B1, -5B1/P, -5B1/2P, -5B1/3, -5B2, -5B2/P,
-5B2/2P, -5B2/3, -5B3/3, -5B3/3B1, -5B3/P, -5B3/P1,
-5B3/2P, -5B3/2P1, -5C2, -5C2/4, -5C2/F,
-5C2/F4, -5C2/G, -5C2/G4, -5C2/P, -5C3/F, -5C3/F4,
-5C3/G, -5C3/G4, -5C3/P, -5C4, -5C4/P, -5C4/1, -5C4/1P.
Std + 30°C (45°C, 113°F): CFM56-5B4, -5B4/P, -5B4/2P, -5B4/3, -5B5, -5B5/P,
-5B5/3, -5B6, -5B6/P, -5B6/2P, -5B6/3, -5B7, -5B7/P,
-5B7/3, -5B8/P, -5B8/3, -5B9/P, -5B9/2P, -5B9/3.
Std + 35°C (50°C, 122°F): CFM56-5B4/P1, -5B4/2P1, -5B4/3B1.

Maximum continuous is nominally independent of ambient temperature (flat rated) up to

ambient temperature of Std. + 10°C (25°C, 77°F) for all models.

Zero customer bleed and horsepower extraction.

No scrubbing drags.

100% inlet recovery.

Based on CFM International referee separate flow exhaust system with primary (core)
exhaust nozzle and fan nozzle for all CFM56-5B engine models.

Based on CFM International long duct mixed flow flight exhaust system for all CFM56-5C
engine models.

NOTE 5. MAXIMUM PERMISSIBLE ENGINE ROTOR SPEEDS (See NOTE 18)

CFM56-5C2, ALL CFM56-5B ENGINE CFM56-5C4, -5C4/1,
-5C2/F, -5C3/F, MODELS -5C2/P, -5C3/P, -5C4/P,
-5C2/G, -5C3/G, -5C2/4, -5C4/1P
-5C2/F4, -5C2/G4,
-5C3/F4, -5C3/G4
RPM % RPM % RPM %
Low pressure rotor (N1) 4,800 100.3 5,200 104.0 4,985 104.2
High pressure rotor (N2) 15,183 105.0 -- -- -- --

NOTE 6. MAXIMUM PERMISSIBLE AIR BLEED EXTRACTION (ALL MODELS)

LOCATION FAN CORRECTED SPEED FLOW LIMIT
Fan Discharge All speeds above minimum idle 2% fan airflow

HPC Stage 5 only All speeds above minimum idle 10% core airflow

Compressor discharge only Minimum idle to 61% N1K 14% core airflow
61% to 82.5% N1K Linear variation from 14% to 7% core airflow
Above 82.5% N1K 7% core airflow

HPC Stage 5 and compressor Minimum idle to 61% N1K 14% core airflow
discharge combined 61% to 82.5% N1K Linear variation from 14% to 10% core airflow
Above 82.5% N1K 10% core airflow

NOTE 7. Approved fuel conforming to GE Specification D50TF2. MIL-T-5624, Grades JP-4 or JP-5,
ASTM D 1655, Jet A, A1 and B are consistent with this General Electric Specification.
Primary fuel is Jet A, with other fuels listed being acceptable alternates. No fuel control
adjustment is required when changing from primary to alternate fuels. Use of aviation
gasoline is not authorized. Consult Specific Operating Instructions for additive usage.
E38NE 23 of 28

NOTE 8. Life limits established for critical rotating and static components are published in Chapter 5
of the CFM56-5B Shop Manual, CFMI-TP-SM.9, for the CFM56-5B engine models, and the
CFM56-5C Shop Manual, CFMI-TP.SM.8, for the CFM56-5C engine models.

NOTE 9. Power setting, power checks and control of engine thrust output in all operations are to be
based on CFM International engine charts referring to fan speed. Fan speed sensors are
included in the engine assembly for this purpose.

NOTE 10. The type certificate holder, CFM International, S.A., is a company established and jointly
owned by Snecma of France and the General Electric Company for the certification, sale,
and support of CFM56 series engines. With respect to the benefits of type certification for
production, General Electric and Snecma function as licensees of CFM International, S.A.

This type certificate applies only to engines produced in France to EASA Type Certificate
No. EASA.E.003. Engines of the same model designation produced in the United States to
Type Certificate No. E37NE are identical to and fully interchangeable with engines produced
to this type certificate. Modules, assemblies, or parts produced in the United States under
Production Certificate No. 108 are eligible for use in engines produced to this type
certificate.

CFM56-5B Engine Models:

CFM56-5B Engine Models:
The engine assembly line is identified by a 3 digit prefix in the engine serial number. Refer to
CFM56-5B Service Bulletin 72-0781 for a list of the applicable serial numbers.

French “Agreement de Production“ No. P03 was the original Snecma Production Basis.
Beginning on February 17, 1998, all engines produced by Snecma were produced under
Production Certificate No. F.G.007. Engine serial number 779-374 was the first CFM56-5B
engine produced by Snecma under Production Certificate No. F.G.007.

Effective September 28, 2004, engines produced by Snecma were produced under EASA
Production Certificate FR.21G.0007. Engine serial number 577-150 was the first
CFM56-5B/P engine produced by Snecma under the EASA Production Certificate. Engine
serial number 577-933 was the first CFM56-5B/2P engine produced by Snecma under the
EASA Production Certificate.

CFM56-5C Engine Models:

CFM56-5C Engine Models:
The engine assembly line is identified by a 3 digit prefix in the engine serial number. Refer to
CFM56-5C Service Bulletin 72-0697 for a list of the applicable serial numbers.

French “Agreement de Production“ No. P03 was the original Snecma Production Basis.
Beginning on February 5, 1998, all engines produced by Snecma were produced under
Production Certificate No. F.G.007. Engine serial number 741-737 was the first CFM56-5C
engine produced by Snecma under Production Certificate No. F.G.007.

Effective September 28, 2004, engines produced by Snecma were produced under EASA
Production Certificate FR.21G.0007. Engine serial number 567-281 was the first
CFM56-5C series engine produced by Snecma under the EASA Production Certificate.

NOTE 11. The engine manufacturer supplies the nacelle system and attachment fittings
NS-CFM56-5G01, the total exhaust system ES-CFM56-5G01, and the
engine-assembled EBU 736L699, which have been approved for installation on all
CFM56-5C engine models in accordance with 14 CFR § 33.

NOTE 12. The minimum permissible idle in flight corresponds to N2=58.8% (8,500 rpm) which is a
non-adjustable limit, preset into the ECU Control schedule.

NOTE 13. During negative -g operation only, it is permissible to operate below minimum oil pressure
(13 psid) for a maximum of 10 seconds. See Specific Operating Instruction, Section 6.
E38NE 24 of 28

NOTE 14. The models shown on this TCDS have the following general characteristics:

MODEL CHARACTERISTICS

CFM56-5B1 Similar to CFM56-5C2, except for new fan and booster and
CFM56-5 LP turbine and revised thrust ratings.

CFM56-5B1/P Same as CFM56-5B1, except for redesigned high pressure

compressor, high pressure turbine, and low pressure turbine.

CFM56-5B1/3 Same as CFM56-5B1/P, except for redesigned high pressure

compressor, high pressure turbine, and combustor.

CFM56-5B1/2P Same as CFM56-5B1/2, except for redesigned high pressure

compressor, high pressure turbine, and low pressure turbine.
Note, the CFM56-5B1/2 was similar to the CFM56-5B1 except the
CFM56-5B1/2 had a dual annual combustor.

CFM56-5B2 Same as CFM56-5B1, except for increased thrust ratings.

CFM56-5B2/P Same as CFM56-5B2, except for redesigned high pressure

compressor, high pressure turbine, and low pressure turbine.

CFM56-5B2/3 Same as CFM56-5B2/P, except for redesigned high pressure

compressor, high pressure turbine, and combustor.

CFM56-5B2/2P Same as CFM56-5B2/2, except for redesigned high pressure

compressor, high pressure turbine, and low pressure turbine.
Note, the CFM56-5B2/2 was similar to the CFM56-5B1 but with a
dual annual combustor and increased thrust rating.

CFM56-5B3/P Same as CFM56-5B1, except for increased thrust rating and

redesigned high pressure compressor, high pressure turbine,
and low pressure turbine.

CFM56-5B3/3 Same as CFM56-5B3/P, except for redesigned high pressure

compressor, high pressure turbine, and combustor.

CFM56-5B3/P1 Same as CFM56-5B3/P, except for a manually-activated takeoff

thrust bump (within the certified standard day rating) for ambient
temperatures above corner point.

CFM56-5B3/3B1 Same as CFM56-5B3/3P1, except for redesigned high pressure

compressor, high pressure turbine, and combustor.

CFM56-5B3/2P Same as CFM56-5B1, except for increased thrust rating and

redesigned high pressure compressor, high pressure turbine, and
low pressure turbine. CFM56-5B3/2P has a dual annular
combustor.

CFM56-5B3/2P1 Same as CFM56-5B3/2P, except for a manually-activated takeoff

thrust bump (within the certified standard day rating) for ambient
temperatures above corner point.

CFM56-5B4 Same as CFM56-5B1, except for decreased thrust ratings.

CFM56-5B4/P Same as CFM56-5B4, except for redesigned high pressure

compressor, high pressure turbine, and low pressure turbine.

CFM56-5B4/3 Same as CFM56-5B4/P, except for redesigned high pressure

compressor, high pressure turbine, and combustor.
E38NE 25 of 28

NOTE 14. (CONT.) CFM56-5B4/P1 Same as CFM56-5B4/P, except for increased flat rating ambient
temperature (corner point), and a manually-activated takeoff
thrust bump (within the certified standard day rating) for ambient
temperatures above corner point.

CFM56-5B4/3B1 Same as CFM56-5B4/P1, except for redesigned high pressure

compressor, high pressure turbine, and combustor.

CFM56-5B4/2P Same as CFM56-5B4/2, except for redesigned high pressure

compressor, high pressure turbine, and low pressure turbine.
Note, the CFM56-5B4/2 was similar to the CFM56-5B1 but with a
dual annual combustor and decreased thrust rating.

CFM56-5B4/2P1 Same as CFM56-5B4/2P, except for increased flat rating ambient

temperature (corner point), and a manually-activated takeoff
thrust bump (within the certified standard day rating) for ambient
temperatures above corner point.

CFM56-5B5 Same as CFM56-5B1, except for decreased thrust ratings.

CFM56-5B5/P Same as CFM56-5B5, except for redesigned high pressure

compressor, high pressure turbine, and low pressure turbine.

CFM56-5B5/3 Same as CFM56-5B5/P, except for redesigned high pressure

compressor, high pressure turbine, and combustor.

CFM56-5B6 Same as CFM56-5B1, except for decreased thrust ratings.

CFM56-5B6/P Same as CFM56-5B6, except for redesigned high pressure

compressor, high pressure turbine, and low pressure turbine.

CFM56-5B6/3 Same as CFM56-5B6/P, except for redesigned high pressure

compressor, high pressure turbine, and combustor.

CFM56-5B6/2P Same as CFM56-5B6/2, except for redesigned high pressure

compressor, high pressure turbine, and low pressure turbine.
Note, the CFM56-5B6/2 was similar to the CFM56-5B1 but with a
dual annual combustor and decreased thrust rating.

CFM56-5B7 Same as CFM56-5B1, except for decreased thrust ratings.

CFM56-5B7/P Same as CFM56-5B7, except for redesigned high pressure

compressor, high pressure turbine, and low pressure turbine.

CFM56-5B7/3 Same as CFM56-5B7/P, except for redesigned high pressure

compressor, high pressure turbine, and combustor.

CFM56-5B8/P Same as CFM56-5B1/P, except for reduced thrust rating.

CFM56-5B8/3 Same as CFM56-5B8/P, except for redesigned high pressure

compressor, high pressure turbine, and combustor.

CFM56-5B9/P Same as CFM56-5B1/P, except for reduced thrust rating.

CFM56-5B9/3 Same as CFM56-5B9/P, except for redesigned high pressure

compressor, high pressure turbine, and combustor.

CFM56-5B9/2P Same as CFM56-5B1/2P, except for reduced thrust rating.

E38NE 26 of 28

NOTE 14. (CONT.) CFM56-5C2 Basic model.

CFM56-5C2/4 Similar to CFM56-5C2, except for N1 limit increase through

introduction of CFM56-5C4 redesigned fan stage airfoils.

CFM56-5C2/F Similar to CFM56-5C2, except EGT limit increase through

introduction of hot section modifications.

CFM56-5C2/F4 Similar to CFM56-5C2/F, except for N1 limit increase through

introduction of CFM56-5C4 redesigned fan stage airfoils.

CFM56-5C2/G Similar to CFM56-5C2, except EGT limit increase through

introduction of hot section modifications.

CFM56-5C2/G4 Similar to CFM56-5C2/G, except for N1 limit increase through

introduction of CFM56-5C4 redesigned fan stage airfoils.

CFM56-5C2/P Same as CFM56-5C2/G4, except for redesigned high pressure

compressor and high pressure turbine.

CFM56-5C3/F Same as CFM56-5C2/F, except for increased thrust ratings.

CFM56-5C3/F4 Similar to CFM56-5C3/F, except for N1 limit increase through

introduction of CFM56-5C4 redesigned fan stage airfoils.

CFM56-5C3/G Same as CFM56-5C2/G, except for increased thrust ratings

CFM56-5C3/G4 Similar to CFM56-5C3/G, except for N1 limit increase through

introduction of CFM56-5C4 redesigned fan stage airfoils.

CFM56-5C3/P Same as CFM56-5C3/G4, except for redesigned high pressure

compressor and high pressure turbine.

CFM56-5C4 Same as CFM56-5C2/G, except for redesigned fan stage airfoils

and increased thrust ratings.

CFM56-5C4/P Same as CFM56-5C4, except for redesigned high pressure

compressor and high pressure turbine.

CFM56-5C4/1 Same as CFM56-5C4, except for introduction of takeoff thrust

bump as a function of mach number.

CFM56-5C4/1P Same as CFM56-5C4/1, except for redesigned high pressure

compressor and high pressure turbine.
E38NE 27 of 28

NOTE 15. All CFM56-5B and CFM56-5C FADEC series engines have been approved to operate with
certain faults present in the control system based on satisfaction of 14 CFR § 33
requirements and appropriate engine control system reliability requirements. FAA approved
criteria pertaining to dispatch and maintenance requirements for the engine control system
are specified in General Electric Document No. GEK 103085 (-5B family) and GEK 100741
(-5C family). These documents define the dispatchable configurations and maximum
operating intervals.

A control system reliability monitoring program has been established with CFM, as a
contingency of the dispatch criteria approval, to ensure that overall engine control system
and specific component failure rates do not exceed the maximum values permitted by the
reliability analysis.

NOTE 16. The normal 5 minute takeoff rating may be extended to 10 minutes for engine out
contingency.

NOTE 17. For the CFM56-5B/P, -5B/P1, -5B/2P, –5B/2P1, -5B/3 and -5B/3B1 series engines, the
actual maximum permissible turbine exhaust gas temperature (EGT) is 10oC lower than the
indicated EGT. An indicated EGT of 950oC corresponds to an actual EGT of 940oC, and an
indicated EGT of 915oC corresponds to an actual EGT of 905oC.

For CFM56-5C2/F, -5C2/F4, -5C3/F, and -5C3/F4 engines, the actual maximum permissible
turbine EGT is 15oC higher than the indicated EGT. An indicated EGT of 950oC
corresponds to an actual EGT of 965oC, and an indicated EGT of 915oC corresponds to an
actual EGT of 930oC.

For CFM56-5C2/G, -5C2/G4, -5C2/P, -5C3/G, -5C3/G4, -5C3/P, -5C4, -5C4/P, -5C4/1,
and -5C4/1P engines, the actual permissible EGT is 25oC higher than the indicated EGT.
An indicated EGT of 950oC corresponds to an actual EGT of 975oC, and an indicated EGT
of 915oC corresponds to an actual EGT of 940oC.

NOTE 18. For CFM56-5C2/4, -5C2/F4, -5C2/G4, -5C2/P, -5C3/F4, -5C3/G4 and -5C3/P engines, the
actual maximum permissible N1 rotor speed is higher than the indicated N1. An indicated
N1 of 4,800 RPM (100.3%) corresponds to an actual N1 of 4,985 RPM (104.2%).

NOTE 19. CFM56-5B series includes: CFM56-5B1, -5B2, -5B4, -5B5, -5B6, -5B7
CFM56-5B/P series includes: CFM56-5B1/P, -5B2/P, -5B3/P, -5B4/P, -5B5/P,
-5B6/P, -5B7/P, -5B8/P, -5B9/P
CFM56-5B/3 series includes: CFM56-5B1/3, -5B2/3, -5B3/3, -5B4/3, -5B5/3,
-5B6/3, -5B7/3, -5B8/3, -5B9/3
CFM56-5B/2P series includes: CFM56-5B1/2P, -5B2/2P, -5B3/2P, -5B4/2P, -5B6/2P,
-5B9/2P
CFM56-5B/P1 series includes: CFM56-5B3/P1, -5B4/P1
CFM56-5B/2P1 series includes: CFM56-5B3/2P1, -5B4/2P1
CFM56-5B/3B1 series includes: CFM56-5B3/3B1, -5B4/3B1

NOTE 20. Installation Manuals, Specific Operating Instructions, Service Bulletins, Overhaul and
Maintenance Manuals, Repair Manuals, Vendor Manuals, and Design Changes which
contain a statement that the document is EASA approved or approved under authority of
DOA No. EASA.21J.086 or for approvals made before September 28, 2003 by DGAC are
accepted by the FAA and considered FAA approved. Repair data and related instructions
are considered FAA approved or accepted as applicable. These approvals pertain to the
type design only.
E38NE 28 of 28

NOTE 21. EXHAUST EMISSIONS AND FUEL VENTING

CFM56-5C2 is in compliance with the emissions requirements of Special Federal Aviation
Regulations No. 27-5. All other engine models are in compliance with the emissions
requirements in 14 CFR Part 34, effective September 10, 1990, as amended by 34-1
through 34-3, with the exception of the following.

The following emissions standards promulgated in 14 CFR part 34, amendment 7A,
effective May 24, 2024, and 40 CFR part 1031, effective December 23, 2022, have
been complied with for the following CFM56-5B series engines models:

CFM56-5B1/3 CFM56-5B2/3 CFM56-5B3/3 CFM56-5B3/3B1

CFM56-5B4/3 CFM56-5B4/3B1 CFM56-5B5/3 CFM56-5B6/3
CFM56-5B7/3 CFM56-5B8/3 CFM56-5B9/3

Fuel Venting Emission Standards: 14 CFR 34.11; in addition, 40 CFR 1031.30(b)

Smoke Number (SN) Emission Standards: 14 CFR 34.21(e); in addition, 40 CFR

1031.60(a)(5)

Carbon Monoxide (CO) Emission Standards: 14 CFR 34.21(d)(1)(ii); in addition, 40 CFR

1031.60(d)

Hydrocarbons (HC) Emission Standards: 14 CFR 34.21(d)(1)(i); in addition, 40 CFR

1031.60(c)

Oxides of Nitrogen (NOx) Emission Standards: 14 CFR 34.23(b)(1); in addition, 40 CFR

1031.60(e)(5) (also known as Tier 8 new type)

non-volatile Particulate Matter (nvPM) Mass Concentration Emission Standards: 14

CFR 34.25(a)(1); in addition, 40 CFR 1031.60(a)(6) (also known as Tier 10)

nvPM Mass and Number Emission Standards: 14 CFR 34.25(a)(2); in addition, 40 CFR
1031.60(b)(2) (also known as Tier 11 in-production)

In addition to the FAA's finding of compliance based on the certification requirements

defined in this TCDS, the engine manufacturer has declared that the ICAO emissions
standards identified in Annex 16, Volume II, Fourth Edition, Amendment 10, effective
July 20, 2020, have also been demonstrated for the following:
• Part II, Chapter 2 for Fuel Venting,
• Part III, Chapter 2, Section 2.2.2 for Smoke number,
• Part III, Chapter 2, Section 2.3.2 for Carbon monoxide and Hydrocarbons,
• Part III, Chapter 2, Section 2.3.2.e for Oxides of Nitrogen (also known as
CAEP/8),
• Part III, Chapter 4, Section 4.2.2.1 for nvPM Mass Concentration (also known as
CAEP/10), and
• Part III, Chapter 4, Section 4.2.2.2 for nvPM Mass and Number (also known as
CAEP/11)

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