PRATT & WHITNEY CANADA

SERVICE BULLETIN
P&WC S.B. No. 7002R45

BULLETIN INDEX LOCATOR

TURBOFAN ENGINE
ROTOR COMPONENTS - SERVICE LIVES

MODEL APPLICATION
JT15D-1, JT15D-1A, JT15D-1B, JT15D-4, JT15D-4B, JT15D-4D, JT15D-5, JT15D-5A, JT15D-5D,
JT15D-5F, JT15D-5R

Compliance: CATEGORY 3

Summary: Certain engine rotating components listed in Para. 3.C., Table 1, are subject to a
low-cycle fatigue due to cyclic operation of the engine. Additionally other factors such
as high-frequency fatigue and metallurgical changes related to time rather than
flight cycles are considered. As a result, these parts must be removed from service
when their total cycle limit is reached.

Dec 01/1973 JT15D-72-7002

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 Pratt & Whitney Canada Corp.
1000, Marie-Victorin
Longueuil, Québec, Canada J4G 1A1
Tél. 450-677-9411

12 January 2022

P&WC S.B. No. 7002R45

REVISION TRANSMITTAL SHEET

TURBOFAN ENGINE MODEL JT15D

SUBJECT: Pratt & Whitney Canada Service Bulletin No. JT15D-72-7002, Rev. No. 45, dated Jan
12/2022 (P&WC S.B. No. 7002R45) ROTOR COMPONENTS - SERVICE LIVES

Replace your existing copy of this service bulletin with the attached revised bulletin. Destroy the
superseded copy.

Please retain this Revision Transmittal Sheet with the revised bulletin.

SUMMARY: This revision is issued to:

v update Para. 1.C, Reason to delete the section related to marking method; and
v move content of Para. 3.B., Accomplishment Instructions to Para. C.1., and added
the table numbers for the various cycle life tables.

EFFECT OF REVISION ON PRIOR ACCOMPLISHMENT:

None.

NOTE: A black bar in the left margin indicates a change in that line of text or figure.

REVISION HISTORY:
Original Issue: Dec 01/1973 Revision No. 11: Apr 28/1981 Revision No. 22: Sep 28/1987
Revision No. 1: Mar 25/1974 Revision No. 12: Feb 09/1982 Revision No. 23: May 18/1989
Revision No. 2: Jun 10/1974 Revision No. 13: Jun 29/1982 Revision No. 24: Jun 20/1989
Revision No. 3: Nov 17/1975 Revision No. 14: Feb 16/1983 Revision No. 25: Jan 11/1990
Revision No. 4: Mar 12/1976 Revision No. 15: Aug 10/1983 Revision No. 26: Jul 13/1990
Revision No. 5: Dec 15/1976 Revision No. 16: Feb 23/1984 Revision No. 27: Mar 27/1991
Revision No. 6: Jul 03/1978 Revision No. 17: May 18/1984 Revision No. 28: Mar 16/1992
Revision No. 7: Nov 28/1978 Revision No. 18: Jul 03/1985 Revision No. 29: Mar 02/1993
Revision No. 8: May 14/1979 Revision No. 19: Oct 07/1985 Revision No. 30: Jul 07/1993
Revision No. 9: Feb 27/1980 Revision No. 20: Oct 08/1986 Revision No. 31: Dec 22/1993
Revision No. 10: Feb 10/1981 Revision No. 21: Jun 29/1987 Revision No. 32: Sep 01/1995

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 Pratt & Whitney Canada Corp.

Revision No. 33: Mar 13/1998

Revision No. 34: Jun 24/1999
Revision No. 35: Nov 01/1999
Revision No. 36: Jun 25/2001
Revision No. 37: Jun 25/2003
Revision No. 38: Oct 14/2004
Revision No. 39: Oct 30/2006
Revision No. 40: Nov 26/2007
Revision No. 41: Nov 07/2008
Revision No. 42: May 11/2010
Revision No. 43: Aug 02/2017
Revision No. 44: Jul 09/2021
Revision No. 45: Jan 12/2022

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 PRATT & WHITNEY CANADA

SERVICE BULLETIN
P&WC S.B. No. 7002R45
TURBOFAN ENGINE
ROTOR COMPONENTS - SERVICE LIVES

1. Planning Information

A. Effectivity
All JT15D-1, JT15D-1A, JT15D-1B, JT15D-4, JT15D-4B, JT15D-4D, JT15D-5,
JT15D-5A, JT15D-5D, JT15D-5F and JT15D-5R Engines

B. Concurrent Requirements

None.

C. Reason

(1) To provide initial rotor components service life.

(2) Deleted.

D. Description

(1) Certain rotating components listed in the tables in Para.3.C., are subject to a
low-cycle fatigue due to cyclic operation of the engine. Additionally other factors such
as high-frequency fatigue and metallurgical changes related to time rather than
flight cycles are considered. As a result, these parts must be removed from service
when their total cycle limit is reached.

(2) Airworthiness regulations require the operator to log engine hours, engine starts
and aircraft flights. It is also the responsibility of the operator to calculate and
record these hours and life limiting cycles.

(3) Operators having missions which include many touch-and-go flights, or a frequency
of scheduled in flight shut-downs, such as used within training missions; or which
include more than 10 flights per hour must submit their mission profiles to Pratt and
Whitney Canada for life cycles analysis.

(4) Engine flight hour is defined as the engine operating time between aircraft takeoff
(weight-on-wheels off) and landing (weight-on-wheels on).

E. Compliance

CATEGORY 3 - The service life values quoted in the Accomplishment instructions are
incorporated by reference in the type approval as issued by the
Canadian Department of Transport. Compliance with these instructions
is therefore necessary to maintain conformity with the approval type
design and the validity of the airworthiness certification.

P&WC No. 24885A, 24937J, 25231, 26423, 28055, 30012A, 30623, 31814, 31502, 70823, 83262,
85883, 84430, 86614, 86934B, 90581, 90591, 90629, 94135, 97225, A0009, B933A,
B9504A, C4845B, C8892B, D0890K, D0890L, C6671A, D4967A, E1253A, E3078A,
E3652A, EC-0001797. CO-0002151, EC-0064762
Dec 01/1973 P&WC Proprietary Information. Subject to the restrictions on the back of the locator JT15D-72-7002
Revision No. 45: Jan 12/2022 © 1973 Pratt & Whitney Canada Corp. Page 1 of 17
PRINTED IN CANADA

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 PRATT & WHITNEY CANADA

SERVICE BULLETIN
P&WC S.B. No. 7002R45
TURBOFAN ENGINE
ROTOR COMPONENTS - SERVICE LIVES

1. Planning Information (Cont’d)

F. Approval

Transport Canada has reviewed and approved the technical contents of this Service
Bulletin.
NOTE: This Service Bulletin is incorporated by reference in one or more Transport
Canada, Aircraft Engine Type Approvals and the service lives thereby constitute
limits applicable to the corresponding engine. The specified service lives
apply to engines, modules and components which embody only parts listed in
the Transport Canada approved parts list, as promulgated in the applicable
Illustrated Parts Catalog and Service Bulletins. Operators requiring approval for
incorporation of parts not listed will be required to substantiate to their local
Airworthiness Authority the applicability of the lives of the substitute parts and
associated parts and assemblies.
G. Manpower

Not applicable.
H. Weight and Balance

None.
I. Electrical Load Data

Not changed.
J. Software Accomplishment Summary

Not applicable.
K. References
Applicable Maintenance and Overhaul Manuals
P&WC S.B. No. 7109, 7488, 7543
L. Publications Affected
Applicable JT15D Technical Manuals
M. Interchangeability and Intermixability of Parts

Not applicable.
2. Material Information

A. Industry Support Information

Not applicable.

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 PRATT & WHITNEY CANADA

SERVICE BULLETIN
P&WC S.B. No. 7002R45
TURBOFAN ENGINE
ROTOR COMPONENTS - SERVICE LIVES

2. Material Information (Cont’d)

B. Material - Cost and Availability

Not applicable.

C. Material Necessary for Each Engine

Not applicable.

D. Reidentified Parts

None.

E. Tooling - Price and Availability

Not applicable.

3. Accomplishment Instructions

A. Accumulated total cycles, all flights and starts must be recorded in the applicable engine
logbook.

B. Deleted.

C. Fan and turbine disk assemblies removed for repair must be suitably tagged, stating the
total number of flights, engine starts and/or the calculated total cycles, per Paragraph
3.D., below.

D. Life Determination

(1) Components with accumulated total cycles or hours, as applicable, greater than the
limits shown in Table 1, Table 2, Table 3, Table 4, Table 5 and Table 6, or components
not supported with proper documentation are to be removed from service.

NOTE: The practice of marking life limited parts with the accumulated cycle count
is no longer required. The accumulated cycle count previously marked on
parts alone is not considered sufficient supporting documentation.

(2) For the limits in terms of number of cycles applicable to JT15D-1, JT15D-1A and
JT15D-1B engines, refer to Table 1.

(3) For the limits in terms of number of cycles applicable to JT15D-4, JT15D-4B and
JT15D-4D engines, refer to Table 2.

(4) For the limits in terms of number of cycles applicable to JT15D-5, JT15D-5A, and
JT15D-5R engines, refer to Table 3.

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 PRATT & WHITNEY CANADA

SERVICE BULLETIN
P&WC S.B. No. 7002R45
TURBOFAN ENGINE
ROTOR COMPONENTS - SERVICE LIVES

3. Accomplishment Instructions (Cont’d)

(5) For the limits in terms of number of cycles applicable to JT15D-5D engines, refer to
Table 4 and 5.

(6) For the limits in terms of number of cycles applicable to JT15D-5F engines, refer to
Table 6.

(7) For all engines, except the JT15D-5D, at repair and overhaul, to calculate the
component life, use the formula that follows:
Accumulated Total Cycles = Number of Flights x Flight Count Factor.

(a) Flight Definitions:

1 Standard Flight:

a Lift-off to touch-down irrespective of engine starts and stops.

2 Training Flight (JSDAF- JT15D-5F):

a Engine start

b Take-off

c Flight (including training flights up to a maximum of four

touch-and-goes)

d Landing

e Engine shut-down

(8) For JT15D-5D engines installed on aircraft operating in civil applications, at repair
and overhaul, to calculate the component life, use the abbreviated cycle factor and
the flight count factor as follows:

NOTE: 1. An abbreviated cycle is an engine start followed by multiple flights and

one shutdown.

NOTE: 2. If number of starts were not recorded. 1 flight =1 start.

NOTE: 3. For abbreviated missions with Touch and Go’s, the No. of Flights = No.
of Starts + No. of Touch and Go.

Accumulated No. of No. of Flights - No. of Starts

= [ + ( ) ] X Flight Count Factor
Total Cycles Starts Abbreviated Cycle Factor

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SERVICE BULLETIN
P&WC S.B. No. 7002R45
TURBOFAN ENGINE
ROTOR COMPONENTS - SERVICE LIVES

3. Accomplishment Instructions (Cont’d)

EXAMPLE:

Part No. 3036411 (Disk)

Abbreviated Cycle Factor 5
No. of Starts 3000
No. of Flights 9000
Flight Count Factor 1.33

Accumulated 9000 - 3000

= [ 3000 + ( ) ] X 1.33
Total Cycles 5
= [3000 + 1200] X 1.33

= 5586

(9) Impellers P/N 3020365, having heat code PLKYL were installed on engines listed
below and must be removed after accumulating 5500 total cycles.

Engine Serial No. Impeller Serial No.

76001 A2591
76002 A2588
76003 A2590
76004 A2632
76005 A2624
76006 A2629
76007 A2626
76008 A2622
76009 A2625
76010 A2617
76011 A2630
76012 A2631
76013 A2619
76014 A2623
76015 A2618
76016 Not Available (Check heat code)
76020 A2627

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 PRATT & WHITNEY CANADA

SERVICE BULLETIN
P&WC S.B. No. 7002R45
TURBOFAN ENGINE
ROTOR COMPONENTS - SERVICE LIVES

3. Accomplishment Instructions (Cont’d)

(10) Low compressor hub P/N 3018018 or P/N 3032711 installed on engines operated
with a mixture of JT15D-1, -1A or -1B flights have a total cycle life limit calculated
as follows:
Accumulated Total Cycles = Number of Flights as a JT15D-1
+ ( Number of Flights as a JT15D-1A x 2)
+ ( Number of Flights as a JT15D-1B x 2)

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 PRATT & WHITNEY CANADA

SERVICE BULLETIN
P&WC S.B. No. 7002R45
TURBOFAN ENGINE
ROTOR COMPONENTS - SERVICE LIVES

3. Accomplishment Instructions (Cont’d)

TABLE 1, JT15D-1, JT15D-1A and JT15D-1B Rotor Components - Service Life Limits

Refer to
Para. Flight Life Limits
Detail Part 3.D. for Count No.
Description No. Engine Model Notes Factor Of Cycles
Hub, Low 3018018 JT15D-1 1.0 27,500
Compressor (See Para. C.10)
3018018 JT15D-1A, -1B 2.0 27,500
(See Para. C.10)
3032711 JT15D-1 1.0 27,500
(See Para. C.10)
3032711 JT15D-1A, -1B 2.0 27,500
(See Para. C.10)
Impeller, Centrifugal 3020365 JT15D-1, -1A, -1B Note: 1. 1.0 8,400
(See Para. C.9)
3031577 JT15D-1, -1A, -1B Note: 1. 1.0 8,400
3032513 JT15D-1, -1A, -1B Note: 1. 1.0 8,400
3032903 JT15D-1, -1A, -1B Note: 1. 1.0 8,400
3032070 JT15D-1, -1A, -1B Note: 1. 1.0 8,400
3032145 JT15D-1, -1A, -1B Note: 1. 1.0 8,400
3042331-01 JT15D-1, -1A, -1B Note: 1. 1.0 8,400
3055474-01 JT15D-1, -1A, -1B Note: 1. 1.0 4,200
Disk, High Turbine 3018811 JT15D-1 1.0 14,000
Rotor
3023411 JT15D-1, -1A, -1B 1.0 14,000
3030911 JT15D-1, -1A, -1B 1.0 14,000
3032911 JT15D-1, -1A, -1B Note: 2. 1.0 14,000
Disk, Low Turbine 3021202 JT15D-1 1.0 6,000
Rotor (Second)
3021302 JT15D-1 1.0 6,000
3022212 JT15D-1, -1A, -1B Note: 2. 1.0 14,000

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 PRATT & WHITNEY CANADA

SERVICE BULLETIN
P&WC S.B. No. 7002R45
TURBOFAN ENGINE
ROTOR COMPONENTS - SERVICE LIVES

3. Accomplishment Instructions (Cont’d)

TABLE 1, JT15D-1, JT15D-1A and JT15D-1B Rotor Components - Service Life Limits (Cont’d)

Refer to
Para. Flight Life Limits
Detail Part 3.D. for Count No.
Description No. Engine Model Notes Factor Of Cycles
Disk, Low Turbine 3018713 JT15D-1 1.0 2,700
Rotor (Third)
3021213 JT15D-1, -1A, -1B Note: 2. 1.0 14,000
3036113 JT15D-1, -1A, -1B Note: 2. 1.0 14,000
3041593 JT15D-1, -1A, -1B Note: 2. 1.0 14,000

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SERVICE BULLETIN
P&WC S.B. No. 7002R45
TURBOFAN ENGINE
ROTOR COMPONENTS - SERVICE LIVES

3. Accomplishment Instructions (Cont’d)

TABLE 2, JT15D-4, JT15D-4B and JT15D-4D Rotor Components - Service Life Limits

Refer to
Para. Flight Life Limits
Detail Part 3.D. for Count No. Of
Description No. Engine Model Notes Factor Cycles
Hub, Low 3018018 JT15D-4, -4B, -4D Note: 13. 2.0 27,500
Compressor
3018018 JT15D-4 BS530 3.9 27,500
JT15D-4D BS645
3032711 JT15D-4, -4B, -4D Note: 13. 2.0 27,500
3032711 JT15D-4 BS530 3.9 27,500
JT15D-4D BS645
Hub, Low, Boost 3021112 JT15D-4, -4B, -4D Note: 13. 1.0 14,000
Compressor
3032712 JT15D-4, -4B, -4D Note: 13. 1.0 14,000
Impeller, Centrifugal 3023179 JT15D-4, -4B, -4D Note: 3 1.0 4,000
and 13.
3032069 JT15D-4, -4B, -4D Note: 3 1.0 8,200
and 13.
3032899 JT15D-4, -4B, -4D Note: 3 1.0 8,200
and 13.
3028345 JT15D-4, -4B, -4D Note: 3 1.0 8,200
and 13.
3033285 JT15D-4, -4B, -4D Note: 3 1.0 8,200
and 13.
3033531 JT15D-4, -4B, -4D Note: 3 1.0 8,200
and 13.
3033532 JT15D-4, -4B, -4D Note: 3 1.0 8,200
and 13.
3039298 JT15D-4, -4B, -4D Note: 3 1.0 12,000
and 13.
3035865 JT15D-4, -4B, -4D Note: 3 1.0 8,200
and 13.
3035866 JT15D-4, -4B, -4D Note: 3 1.0 8,200
and 13.

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SERVICE BULLETIN
P&WC S.B. No. 7002R45
TURBOFAN ENGINE
ROTOR COMPONENTS - SERVICE LIVES

3. Accomplishment Instructions (Cont’d)

TABLE 2, JT15D-4, JT15D-4B and JT15D-4D Rotor Components - Service Life Limits (Cont’d)

Refer to
Para. Flight Life Limits
Detail Part 3.D. for Count No. Of
Description No. Engine Model Notes Factor Cycles
3036108 JT15D-4, -4B, -4D Note: 3 1.0 8,200
and 13.
3036114 JT15D-4, -4B, -4D Note: 3 1.0 8,200
and 13.
3036350 JT15D-4, -4B, -4D Note: 3 1.0 8,200
and 13.
3036591 JT15D-4, -4B, -4D Note: 3 1.0 8,200
and 13.
3036593 JT15D-4, -4B, -4D Note: 3 1.0 8,200
and 13.
3036623 JT15D-4, -4B, -4D Note: 3 1.0 8,200
and 13.
3036624 JT15D-4, -4B, -4D Note: 3 1.0 8,200
and 13.
3036625 JT15D-4, -4B, -4D Note: 3 1.0 8,200
and 13.
3039556 JT15D-4, -4B, -4D Note: 3 1.0 12,000
and 13.
3040937 JT15D-4, -4B, -4D Note: 3 1.0 12,000
and 13.
3055475-01 JT15D-4, -4B, -4D Note: 3 1.0 6,000
and 13.
Disk, High Turbine 3023411 JT15D-4, -4B, -4D Note: 13. 1.0 14,000
Rotor
3030911 JT15D-4, -4B, -4D Note: 13. 1.0 14,000
3032911 JT15D-4, -4B, -4D Note: 4 1.0 14,000
and 13.
Disk, Low Turbine 3022212 JT15D-4, -4B, -4D Note: 4 1.0 14,000
Rotor (Second) and 13.

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SERVICE BULLETIN
P&WC S.B. No. 7002R45
TURBOFAN ENGINE
ROTOR COMPONENTS - SERVICE LIVES

3. Accomplishment Instructions (Cont’d)

TABLE 2, JT15D-4, JT15D-4B and JT15D-4D Rotor Components - Service Life Limits (Cont’d)

Refer to
Para. Flight Life Limits
Detail Part 3.D. for Count No. Of
Description No. Engine Model Notes Factor Cycles
Disk, Low Turbine 3021213 JT15D-4, -4B, -4D Note: 4 1.0 14,000
Rotor (Third) and 13.
3036113 JT15D-4, -4B, -4D Note: 4 1.0 14,000
and 13.
3041593 JT15D-4, -4B, -4D Note: 4 1.0 14,000
and 13.

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TURBOFAN ENGINE
ROTOR COMPONENTS - SERVICE LIVES

3. Accomplishment Instructions (Cont’d)

TABLE 3, JT15D-5, JT15D-5A, and JT15D-5R Rotor Components - Service Life Limits

Refer to
Para. Flight Life Limits
Detail Part 3.D. for Count No. Of
Description No. Engine Model Notes Factor Cycles
Hub, Low 3034511 JT15D-5 Note: 5. 1.0 4,000
Compressor
3036811 JT15D-5 Note: 5. 1.0 12,000
3037111 JT15D-5, -5A Note: 5. 1.0 2,500
3037911 JT15D-5, -5A, -5R Note: 5. 1.0 12,000
Hub, Low, Boost 3034112 JT15D-5, -5A Note: 5. 1.0 14,000
Compressor
3035412 JT15D-5 Note 5. 1.0 14,000
3038312 JT15D-5, -5A, -5R Note: 5. 1.0 14,000
Impeller, Centrifugal 3033682 JT15D-5, -5A Note: 6. 1.0 9,000
3035417 JT15D-5, -5A Note: 6. 1.0 9,000
3035655 JT15D-5, -5A Note: 6. 1.0 9,000
3039555 JT15D-5, -5A Note: 6. 1.0 12,000
3039558 JT15D-5, -5A Note: 6. 1.0 12,000
3040939 JT15D-5, -5A, -5R Note: 6. 1.0 12,000
Disk, High Turbine 3036411 JT15D-5, -5A, -5R Note: 7. 1.0 14,000
Rotor
Disk, Low Turbine 3022212 JT15D-5, -5A, -5R Note: 8. 1.0 14,000
Rotor (Second)
Disk, Low Turbine 3021213 JT15D-5, -5A Note: 8. 1.0 14,000
Rotor (Third)
3036113 JT15D-5, -5A Note: 8. 1.0 14,000
3041593 JT15D-5, -5A, -5R Note: 8. 1.0 14,000

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SERVICE BULLETIN
P&WC S.B. No. 7002R45
TURBOFAN ENGINE
ROTOR COMPONENTS - SERVICE LIVES

3. Accomplishment Instructions (Cont’d)

TABLE 4, JT15D-5D Rotor Components - Service Life Limits

Refer to
Para. Abbr’d Flight Life Limits
Detail Part 3.D. for Cycle Count No. Of
Description No. Engine Model Notes Factor Factor Cycles
Rotor, Fan 3041231 JT15D-5D Note: 9. 1.0 1.0 30,000
Low
Compressor
Rotor, Low, 3041512 JT15D-5D Note: 9. 1.0 1.0 30,000
Boost
3054002-01 JT15D-5D Note: 9. 1.0 1.0 30,000
Compressor
3070232-01 JT15D-5D Note: 9. 1.0 1.0 30,000
Impeller, 3040939 JT15D-5D Note: 9. 2.0 1.0 12,000
Centrifugal Note: 12.
Disk, High 3036411 JT15D-5D Note: 9. 5.0 1.33 14,000
Turbine Rotor
Disk, Low 3022212 JT15D-5D Note: 9. 1.5 1.33 14,000
Turbine Rotor
(Second)
Disk, Low 3036113 JT15D-5D Note: 9. 1.5 1.33 14,000
Turbine Rotor
3041593 JT15D-5D Note: 9. 1.5 1.33 14,000
(Third)

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TURBOFAN ENGINE
ROTOR COMPONENTS - SERVICE LIVES

3. Accomplishment Instructions (Cont’d)

TABLE 5, JT15D-5D Rotor Components for Korean Air Flying School - Service Life Limits

Abbr’d Flight Life Limits

Detail Part Cycle Count No. Of
Description No. Engine Model Factor Factor Cycles
Rotor, Fan Low 3041231 JT15D-5D 1.5 1.0 30,000
Compressor
Rotor, Low, Boost 3041512 JT15D-5D 1.5 1.0 30,000
Compressor
3054002-01 JT15D-5D 1.5 1.0 30,000
3070232-01 JT15D-5D 1.5 1.0 30,000
Impeller, Centrifugal 3040939 JT15D-5D 2.0 1.0 12,000
Disk, High Turbine 3036411 JT15D-5D 5.0 1.33 14,000
Rotor
Disk, Low Turbine 3022212 JT15D-5D 1.5 1.33 14,000
Rotor (Second)
Disk, Low Turbine 3036113 JT15D-5D 1.5 1.33 14,000
Rotor (Third)
3041593 JT15D-5D 1.5 1.33 14,000

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TURBOFAN ENGINE
ROTOR COMPONENTS - SERVICE LIVES

3. Accomplishment Instructions (Cont’d)

TABLE 6, JT15D-5F Rotor Components - Service Life Limits

Life
Flight Limits
Detail Part Count No. Of
Description No. Engine Model Factor Cycles
Hub, Low Compressor 3037911 JT15D-5F 2.0 12,000
Hub, Low, Boost 3038312 JT15D-5F 2.0 14,000
Compressor
Impeller, Centrifugal 3039555 JT15D-5F 2.0 12,000
3039558 JT15D-5F 2.0 12,000
3040939 JT15D-5F 2.0 12,000
Disk, High Turbine Rotor 3036411 JT15D-5F 2.0 14,000
Disk, Low Turbine Rotor 3022212 JT15D-5F 2.0 14,000
(Second)
Disk, Low Turbine Rotor 3036113 JT15D-5F 2.0 14,000
(Third)
3041593 JT15D-5F 2.0 14,000

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TURBOFAN ENGINE
ROTOR COMPONENTS - SERVICE LIVES

3. Accomplishment Instructions (Cont’d)

E. The notes that follow give an alternate Flight Count Factor for specific components
when installed on engines used in different missions or different aircraft installations.
Refer to the applicable Table.

NOTE: 1. For missions of two or more flights without engine shutdown, a Flight Count
Factor (FCF) of 0.75 must be applied (Ref. Table 1).

NOTE: 2. For missions of two or more flights without engine shutdown, a Flight Count
Factor (FCF) of 0.50 must be applied (Ref. Table 1).

NOTE: 3. For missions of two or more flights without engine shutdown, a Flight Count
Factor (FCF) of 0.75 must be applied (Ref. Table 2).

NOTE: 4. For missions of two or more flights without engine shutdown, a Flight Count
Factor (FCF) of 0.50 must be applied (Ref. Table 2).

NOTE: 5. When installed in Czech CAA application, a Flight Count Factor of 1.6 must
be applied for JT15D-5 engines built to B.S. 713 and JT15D-5R engines (Ref.
Table 3).

NOTE: 6. When installed in Czech CAA application, a Flight Count Factor of 1.5 must
be applied for JT15D-5 engines built to B.S. 713 and JT15D-5R engines (Ref.
Table 3).

NOTE: 7. When installed in Czech CAA application, a Flight Count Factor of 1.1 must
be applied for JT15D-5 engines built to B.S. 713 and JT15D-5R engines (Ref.
Table 3).

NOTE: 8. When installed in Czech CAA application, a Flight Count Factor of 1.4 must
be applied for JT15D-5 engines built to B.S. 713 and JT15D-5R engines (Ref.
Table 3).

NOTE: 9. DELETED.

NOTE: 10. DELETED.

NOTE: 11. DELETED.

NOTE: 12. When installed in Cessna Citation V Ultra application, a Flight Count Factor
(FCF) of 0.90 must be used for NetJets Inc.(Ref. Table 4).

NOTE: 13. When installed in JT15D-4 engines, BS1219 and BS507, operated by
Netherlands Aerospace Centre (NLR) during research missions requiring
operation at sustained zero gravity conditions, each zero gravity parabolic
flight manoeuvre must be considered as an additional flight to be included in

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TURBOFAN ENGINE
ROTOR COMPONENTS - SERVICE LIVES

3. Accomplishment Instructions (Cont’d)

the Accumulated Total Cycle calculation on each critical part.

4. Appendix

Not applicable.

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