C-172 AIRCRAFT CHECKLIST C-172 AIRCRAFT CHECKLIST

PASSENGER BRIEFING
C-172 AIRCRAFT S - Seat belts/harness: Operation and adjustment
A - Air vents: Location & operation
F - Fire extinguisher: Location and operation

CHECKLIST
E - Emergency Exits/ Survival Kit: Location, operation & evacuation plan
T - Talking: Sterile cockpit
Y - Your questions?

V-SPEEDS
VSO 40 KIAS VFE 110 KIAS @ 10
VS 48 KIAS VFE 85 KIAS @ 20-FULL
VX 62 KIAS VA 105 KIAS @ 2550
Best Glide 68 KIAS 90 KIAS @ 1900
VY 74 KIAS VNO 129 KIAS
Cruise Climb 80 KIAS VNE 163 KIAS
Window Open 163 KIAS

FAULTY MAGNETO CHECK PROCEDURES

Fouled Plug
 Set magnetos to BOTH

REVISION 2 
Open throttle to FULL
Lean mixture as far as possible or to peak EGT
 After several seconds leaned (< 15 seconds), return throttle to 1800 RPM
15 DEC 2022  Re-check magneto with mixture as set
This procedure is limited to two attempts
Overly Rich
 Return magneto switch to BOTH
 Lean mixture until peak RPM
 Reduce throttle to obtain magneto check RPM 1800 RPM
 Perform magneto check with mixture as set

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 C-172 AIRCRAFT CHECKLIST C-172 AIRCRAFT CHECKLIST
CHECKLIST LEGEND
Changes are identified by solid bar on the left side of the revised text

Memory items are boxed

NOTE Statements are used to highlight specific operating conditions or steps of a procedure.

CAUTION STATEMENTS ARE USED TO CALL ATTENTION TO OPERATING

PROCEDURES THAT IF NOT STRICTLY OBSERVED, MAY RESULT IN
DAMAGE TO EQUIPMENT.

WARNING STATEMENTS ARE USED TO CALL ATTENTION TO OPERATING

PROCEDURES THAT IF NOT STRICTLY OBSERVED, MAY RESULT IN
PERSONAL INJURY OR LOSS OF LIFE.

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 C-172 AIRCRAFT CHECKLIST C-172 AIRCRAFT CHECKLIST
INTERIOR PREFLIGHT EXTERIOR PREFLIGHT Nose Gear Assembly ................ Check BEFORE START
Aircraft Key .... Cup Holder/Glareshield Windows & Fuselage .............. Check Air Filter ...........................Check Clear Passenger Briefing .............. Complete
Documents ............................... Check Bottom of Fuselage ................. Check Propeller & Spinner ................. Check Parking Brake ................................ Set
Parking Brake ................................Set IDENT Plate ............................ Check WARNING: DO NOT ROTATE THE Seats ............................. Adjust & Lock
PROPELLER BY HAND.
ELT .......................................... Armed Left Stabilizer & Elevator ........ Check Seat Belts .................. Adjust & Secure
Alternator Belt ........................... Check
Compass .................................. Check Tail Skid Plate ......................... Check Cabin Doors ................. Close & Latch
Engine Cooling Intakes ............... Clear
Control Wheel ........................ Release Rudder ..................................... Check Radios & Electrical Equipment ....... Off
Cowling Screws (Top & L) ........ Check
Flight Controls ............ Free & Correct Beacon, NAV Light, Antennas . Check STBY BATT Switch ..... Test, then Arm
EPU Door................................. Secure
Magnetos Switch ........................... Off Right Stabilizer & Elevator ....... Check Engine Indicating System ..No Red X’s
Battery Vents ............................ Check
Flight & Standby Instruments ... Check Windows & Fuselage ............... Check BUS E Volts................... 22V minimum
Oil Breather .............................. Check
Cabin HT/Air .................................. Off Antennas ................................... Check M BUS Volts ..................... 1.5V or less
Static Air Inlet ............................. Clear
Mixture ............................. Idle/Cut-Off Right Flap & Aileron ................. Check BATT S Amps......................Discharge
Fuel Sumps ............................ Sample
Throttle .................................... Closed Right Wingtip & Lights .............. Check Annunciators .............................Check
Fuel Quantity ............................ Check
ALT Static Air Valve ...................... Off Right Wing Lower Surfaces ..... Check Master Switch (ALT & BAT) ........... On
Fuel Cap ................................ Secured
Circuit Breakers ........................ Check Right Wing Leading Edge ........ Check Aircraft Lights .................. As Required
Left Wing Upper Surfaces ........ Check
Electrical Switches (Beacon ON) ... Off Right Main Gear Assembly ....... Check Flaps ........................................ Retract
Fresh Air Inlet ............................. Clear
Master Switch (ALT & BAT) .......... On Fuel Sumps ............................. Sample Fuel Shutoff Valve .......................... On
Pitot Tube ................................... Clear
Avionics Switch (BUS 1) ............... On Fuel Quantity ............................. Check Fuel Selector Valve ..................... Both
Fuel Vent .................................... Clear
Forward Avionics Cooling Fan . Check Fuel Cap ................................ Secured
Stall Warning Horn .......................Test ENGINE START - COLD
Avionics Switch (BUS 1) ............... Off COM/GPS Antennas ................. Check
Landing & Taxi Lights ............... Check Throttle ......................... 1/4 Inch Open
Avionics Switch (BUS 2) ............... On OAT Probe ................................ Check
Left Wing Leading Edge ........... Check Fuel Pump Switch .......................... On
Aft Avionics Cooling Fan .......... Check Right Wing Upper Surfaces ...... Check
Left Wing Lower Surfaces ........ Check Mixture ............. Rich, then Idle/Cut Off
Avionics Switch (BUS 2) ............... Off Fresh Air Inlets ............................Clear
Left Wingtip & Lights ................. Check Fuel Pump Switch .......................... Off
Interior Lights.................. As Required Windshield ................................ Check
Left Aileron & Flap .................... Check Brakes .......................................... Hold
Flaps ............................................. Full Oil Quantity ............................... Check
Left Main Gear Assembly ......... Check Propeller Area ............................ Clear
Aircraft Lights ........................... Check Firewall .....................................Inspect
Tie Downs & Chocks .Remove & Stow Magnetos Switch ......................... Start
PITOT HEAT ............................ Check Cowling Screws (R & Top) ........ Check
Baggage Area .......................... Secure Mixture ..........................................Rich
Fuel Quantity (L & R) ............... Check Fuel Strainer Drain Valve ........ Sample
Baggage Door .............. Close & Latch Throttle ............................... 1000 RPM
Annunciators ............................ Check Fuel Selector Drain Valve ....... Sample
Aircraft Interior .... Secure Loose Items Oil Pressure...............................Check
Low Volts Annunciator .................. On Fuel Reservoir Drain Valve ..... Sample
AMPS (M BATT S) ...... Check Positive
Electrical Switches All* .................. Off Exhaust ........................ Check Secure CAUTION: Never leave the aircraft Low Volts Annunciator Not Illuminated
Elevator Trim ............... Set to Takeoff WARNING: EXHAUST PIPE MAY BE unattended without chocks in
Fuel Selector ......... Cycle, then BOTH HOT. place, controls secured, and when
Fire Extinguisher ...................... Check required, tied down.

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 C-172 AIRCRAFT CHECKLIST C-172 AIRCRAFT CHECKLIST
ENGINE START - HOT RUN-UP DESCENT SHUTDOWN
Throttle ......................... 1/2 Inch Open Parking Brake ................................ Set Seats & Seat Belts ....Upright & Secure Environmental Controls ................... Off
Mixture .............................. Idle/Cut-Off Circuit Breakers .........................Check Avionics .......................................... Set Fuel Quantity ............................. Check
Brakes ......................................... Hold Mixture ..........................................Rich Altimeters (PFD, STBY).................. Set Avionics Switch (BUS 1 & 2) ........... Off
Propeller Area ............................ Clear Throttle ................................ 1800 RPM Aircraft Lights ................... As Required Throttle ........................................... Idle
Magnetos Switch ......................... Start Magnetos Switch........................Check PITOT HEAT Switch ........ As Required Magnetos Switch ....................... Check
Mixture ................. 1/3 Open, then Rich Engine Instruments ....................Check Fuel Selector Valve ...................... Both Mixture ............................... Idle/Cut-Off
Throttle ............................... 1000 RPM
Annunciators ................ Not Illuminated Mixture ............................................ Set Magnetos Switch .................. Off & Out
Oil Pressure............................... Check
Mixture ................... Adjust for Takeoff Descent Power ............................... Set All Switches (Beacon ON) ............... Off
AMPS (M BATT S) ...... Check Positive
Throttle ......................... Idle/1000 RPM Engine Instruments .................... Check Master Switch (ALT & BAT) ............ Off
Low Volts Annunciator Not Illuminated
Throttle Friction Lock ................. Adjust Approach Briefing ................. Complete STBY BATT Switch ......................... Off
For External/Flooded Start,
See Page 21 Parking Brake .........................Release Fuel Selector Valve .......... Left or Right
BEFORE LANDING
AFTER ENGINE START BEFORE TAKEOFF Fuel Selector Valve ...................... Both POSTFLIGHT
Engine Instruments ................... Check Elevator Trim ............. Set to TAKEOFF Mixture ............................................ Set MAGNETOS Switch ............. Verify Off
Avionics Switches (BUS 1 & 2) ....... On Flaps .............................................. Set Aircraft Lights ................... As Required Flight Controls .......................... Secure
Mixture ......................................... Lean Mixture ........................................... Set Sun Screen ................................. Install
FINAL CHECK
Environmental Controls ............. Adjust Aircraft Lights ................... As Required Chock & Tie Down............As Required
PITOT HEAT Switch ........ As Required Flaps .........................Set ___(degrees) Engine Cover .............................. Install
BEFORE TAXI Approach .............................. Stabilized Rudder/Elevator/Tail Skid Plate
MFD ......................... Check Databases CLIMB
.................................................. Inspect
Fuel Totalizer.................................. Set Flaps ............................................... Up AFTER LANDING
Right Fuselage/Tire/Wing ......... Inspect
Avionics .......................................... Set Mixture ......................... Set for Altitude Elevator Trim ............ Set to TAKEOFF
Propeller & Spinner .................. Inspect
Flight Instruments ........................... Set Aircraft Lights ................... As Required Flaps ............................................... Set
Nose Strut/Tire ......................... Inspect
Takeoff Briefing .................... Complete Mixture ............................................ Set
CRUISE Left Wing/Tire/Fuselage ........... Inspect
Aircraft Lights ................... As Required
TAXI Cruise Power ................................. Set
PITOT HEAT Switch ........ As Required
Pitot Tube Cover ........................ Install
Altitude & Heading Bugs ..... Check/Set Mixture ............................. As Required Flight Plan ................................ Closed
Transponder ........................ Check/Set Aircraft Lights ................... As Required
Taxi Light ........................................ On PITOT HEAT Switch ........ As Required
Fire Station .................................... Call
Brakes ......................Release & Check
Flight Instruments ...................... Check

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 C-172 AIRCRAFT CHECKLIST C-172 AIRCRAFT CHECKLIST
ENGINE FAILURE DURING TAKEOFF ROLL
EMERGENCY PROCEDURES Throttle................................................................................................................... Idle
Brakes...................................................................................................... As Required
ENGINE FAILURES Engine..................................................................................... Shutdown if Necessary
Engine Failure Takeoff Roll .....................................8
ENGINE FAILURE IMMEDIATELY AFTER TAKEOFF
Engine Failure After Takeoff ...................................8
Airspeed ................................................................................ Maintain Safe Airspeed
Engine Failure During Flight (Restart) .....................8
Engine ......................................................................................................... Shutdown
FORCED LANDINGS Cabin Door ..................................................................................................... Unlatch
Land ..................................................................................................... Straight Ahead
Power Off Landing ..................................................9
Precautionary Landing With Power ......................10 ENGINE FAILURE DURING FLIGHT
Ditching / Desert ...................................................10 Airspeed ......................................................................................................... 68 KIAS
Place to Land ............................................................................................ Pilot Option
FIRES Fuel Shutoff Valve ............................................................................ On (push full in)
Fuel Selector Valve ............................................................................................. Both
During Start On The Ground .................................11
Fuel Pump Switch ................................................................................................... On
Engine Fire In Flight ..............................................11 Mixture ..................................................................... Rich (if restart has not occurred)
Electrical Fire In Flight ...........................................12 Magnetos Switch .............................................. Both (or start if propeller is stopped)

Cabin Fire ..............................................................13 Engine Instruments ............................................................................................ Check

Magnetos Switch .............................................................................................. Check
Wing Fire ...............................................................13 Fuel Pump Switch ................................................................................................... Off
Power not restored: .......................... Proceed to Power-Off Landing Checklist (pg 9)
ELECTRICAL
High Volts / M BATT > 40v ....................................14 Power restored:
Electrical Failure....................................................15 Land as Soon as Practical

Emergency Descent ..............................................17

GENERAL
Spin Recovery........................................................17
PFD – Loss of Air / Attitude Data ..........................18
Inadvertent Icing Encounter .................................19
High CO Level Advisory ........................................21

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 C-172 AIRCRAFT CHECKLIST C-172 AIRCRAFT CHECKLIST
POWER-OFF LANDING PRECAUTIONARY LANDING WITH ENGINE POWER
Airspeed ......................................................................................................... 68 KIAS Pilot & Passenger Seat Backs .................................................. Most Upright Position
Place to Land ............................................................................................Pilot Option Seats & Seat Belts ........................................................................................... Secure
Pilot & Passenger Seat Backs .................................................. Most Upright Position Airspeed........................................................................................................... 65KIAS
Seats & Seat Belts ........................................................................................... Secure Flaps ...................................................................................................................... 20°
Selected Field ................................................................................................ Fly Over
If time and altitude permit:
Flaps ...................................................................................................................... Full
Transponder ........................................................................................................ 7700
Airspeed.......................................................................................................... 65 KIAS
Radio ............................................................................................................ Transmit
STBY BATT Switch ................................................................................................ Off
ELT ......................................................................................................................... On
Master Switch (ALT&BAT ....................................................................................... Off
Throttle .................................................................................................................. Idle
Cabin Doors ................................................................... Unlatch Prior to Touch down
Mixture ....................................................................................................... Idle/Cut-Off
Mixture ...................................................................................................... Idle/Cut-Off
Fuel Shutoff Valve .............................................................................. Off (pull full out)
Magnetos Switch ................................................................................................... Off
Magneto Switch ..................................................................................................... Off
Brakes.................................................................................................... Apply Heavily
Flaps ........................................................................................................ As Required
STB BATT Switch .................................................................................................. Off DITCHING / DESERT
Master Switch (ALT & BAT) .................................................................................. Off Transponder ........................................................................................................ 7700
Cabin Doors ....................................................................Unlatch Prior to Touchdown Radio ............................................................................................................. Transmit
Approach Speed ............................................ 70 KIAS Flaps Up, 65 KIAS Flaps Full Heavy Objects ................................................................................ Secure or Jettison
Pilot Passenger Seatback’s ...................................................... Most Upright Position
Seats & Seat Belts ........................................................................................... Secure
Flaps ................................................................................................. Pilot’s Discretion
Power.............................................................................300 FPM Descent at 55KIAS
Approach:
High Winds, Heavy Seas ........................................................................Into the Wind
Light Winds, Heavy Swells ....................................................... Parallel to the Swells
Cabin Doors ..................................................................................................... Unlatch
Touchdown ............................................................................................ Level Attitude
Occupants Heads ...................................... Cushion at Touchdown (with folded coat)
ELT ................................................................................................................. Activate
Airplane .................................................................... Evacuate Through Cabin Doors
Life Vests & Raft Inflate When Clear of Airplane

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 C-172 AIRCRAFT CHECKLIST C-172 AIRCRAFT CHECKLIST
ENGINE FIRE DURING START ELECTRICAL FIRE IN FLIGHT
Magnetos Switch ..................................................................Start, Continue Cranking STBY BATT Switch ................................................................................................ Off
If engine starts: Master Switch (ALT & BAT).................................................................................... Off
Power ........................................................................... 1800 RPM for a Few Minutes Cabin Vents ...................................................................................................... Closed
Engine ........................................................................Shutdown, Inspect for Damage Cabin HT/Air Control Knobs .............................................................. Off (push full in)
If engine does NOT start: Fire Extinguisher ............................................................................................. Activate
Throttle .........................................................................................................Full Open Avionics Switch (BUS 1 & 2) .................................................................................. Off
Mixture ....................................................................................................... Idle/Cut-Off All Switches (except Magnetos) ............................................................................. Off
Magnetos Switch ..................................................................Start, Continue Cranking WARNING: AFTER THE FIRE EXTINGUISHER HAS BEEN USED, ENSURE THE
Fuel Shutoff Valve .............................................................................. Off (pull full out) FIRE HAS BEEN EXTINGUISHED BEFORE EXTERIOR AIR IS USED TO
Fuel Pump Switch .................................................................................................. Off REMOVE SMOKE FROM THE CABIN.
Magnetos Switch .................................................................................................... Off When pilot is sure that the fire is completely extinguished:
STBY BATT Switch ................................................................................................ Off Cabin Vents ........................................................................................................ Open
Master Switch (ALT & BAT) .................................................................................. Off Cabin HT/Air Control Knobs .............................................................. On (pull full out)
If fire continues: If fire appears out and electrical power is necessary:
Evacuate the passengers and extinguish the fire using all available means. Circuit Breakers ..................................................................................... Do Not Reset
Master Switch (ALT & BAT).................................................................................... On
ENGINE FIRE IN FLIGHT STBY BATT Switch .............................................................................................. Arm
Mixture ....................................................................................................... Idle/Cut-Off Avionics Switch (BUS 1 & 2) ......................................................... On, One at a Time
Fuel Shutoff Valve .............................................................................. Off (pull full out) Land as Soon as Practical.
Fuel Pump Switch .................................................................................................. Off
Master Switch (ALT & BAT) ................................................................................... Off
Cabin Vents .................................................................................... Open (as needed)
Cabin HT/Air Control Knobs ............................................................... Off (push full in)
Airspeed ....................................................................................................... 100 KIAS
Forced Landing .............................................................................................. Execute
Proceed to the Power-Off Landing Checklist on page 6.

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 C-172 AIRCRAFT CHECKLIST C-172 AIRCRAFT CHECKLIST
CABIN FIRE HIGH VOLTS ANNUNCIATOR ON OR M BATT AMPS > 40
STBY BATT Switch ................................................................................................ Off Master Switch (ALT only) ....................................................................................... Off
Master Switch (ALT & BAT) ................................................................................... Off Electrical Load ............................................................................ Reduce Immediately
Cabin Vents ...................................................................................................... Closed Avionics Switch (BUS 1) ......................................................................................... Off
Cabin HT/Air Control Knobs ............................................................... Off (push full in) Pitot Heat Switch .................................................................................................... Off
Fire Extinguisher ............................................................................................ Activate Beacon Switch ........................................................................................................ Off
LAND Switch .......................................................................................................... Off
WARNING: AFTER THE FIRE EXTINGUISHER HAS BEEN USED, ENSURE THE
Taxi Switch ............................................................................................................. Off
FIRE HAS BEEN EXTINGUISHED BEFORE EXTERIOR AIR IS USED TO
REMOVE SMOKE FROM THE CABIN. NAV Switch ............................................................................................................. Off
Cabin Vents ........................................................................................................ Open Strobe Switch ......................................................................................................... Off
Cabin HT/Air Control Knobs ............................................................... On (pull full out) Recog Switch .......................................................................................................... Off
Land as Soon as Possible and Inspect for Damage. Cabin PWR 12V Switch .......................................................................................... Off
NOTE The main battery supplies electrical power to the main and essential buses until M BUS
WING FIRE VOLTS decreases below 20 volts. When M BUS VOLTS drops below 20 volts, the standby
battery system automatically supplies electrical power to the essential bus for at least 30
LAND Switch .......................................................................................................... Off
minutes.
Taxi Switch ............................................................................................................. Off
NAV Switch ............................................................................................................ Off NOTE Select COM 1 MIC & NAV 1 on the audio panel and tune to the active frequency
Strobe Switch ......................................................................................................... Off before setting Avionics BUS 2 to Off. If COM 2 MIC & NAV 2 are selected when Avionics
Recog Switch ......................................................................................................... Off BUS 2 is set to Off, the COM & NAV radios cannot be tuned.
Pitot Heat Switch .................................................................................................... Off
COM 1 & NAV 1 .................................................................................................. Tune
Land as soon as possible, using flaps only as required for final approach and COM 1 MIC & NAV 1 ......................................................................................... Select
touchdown.
Avionics Switch (BUS 2) ....................................................... Off (keep on if in clouds)
NOTE Perform a sideslip to keep the flames away from the fuel tank and cabin.
Land as Soon as Practical.

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 C-172 AIRCRAFT CHECKLIST C-172 AIRCRAFT CHECKLIST
ELECTRICAL FAILURE If Low Volts Annunciator remains illuminated:
Low Volts Annunciator Illuminated at or Below 1000 RPM: Master Switch (ALT only) ....................................................................................... Off
Throttle ....................................................................................................... 1000 RPM Electrical Load ............................................................................ Reduce Immediately
Low Volts Annunciator ................................................................................ Check Off Avionics Switch (BUS 1) ......................................................................................... Off
Low Volts Annunciator Remains Illuminated: Pitot Heat Switch .................................................................................................... Off
ON THE GROUND - DO NOT fly the aircraft Beacon Switch ........................................................................................................ Off
IN THE AIR - Proceed to Low Volts Annunciator Illuminated Above 1000 RPM LAND Switch .......................................................................................................... Off
below. Taxi Switch ............................................................................................................. Off
Low Volts Annunciator Illuminated Above 1000 RPM: NAV Switch ............................................................................................................. Off
Master Switch (ALT only) ....................................................................................... Off Strobe Switch ......................................................................................................... Off
ALT FIELD Circuit Breaker ............................................................................ Check In Recog Switch .......................................................................................................... Off
Master Switch (ALT & BAT) ................................................................................... On Cabin PWR 12V Switch .......................................................................................... Off
LOW VOLTS Annunciator ........................................................................... Check Off NOTE The main battery supplies electrical power to the main and essential buses until M BUS
M BUS VOLTS .......................................................... Check for 27.5 volts (minimum) VOLTS decreases below 20 volts. When M BUS VOLTS drops below 20 volts, the standby
battery system automatically supplies electrical power to the essential bus for at least 30
M BATT AMPS ..............................................................................Check charging (+)
minutes.
NOTE Main battery life can be extended by setting the MASTER switch to off and operating
the equipment on the ESS BUS from the standby battery. Turn on main battery later for
NOTE Select COM 1 MIC & NAV 1 on the audio panel and tune to the active frequency before
operation of the flaps and lights.
setting Avionics BUS 2 to Off. If COM 2 MIC & NAV 2 are selected when Avionics BUS 2 is
set to Off, the COM & NAV radios cannot be tuned.
Continued on next page
COM 1 & NAV 1 .................................................................................................. Tune
COM 1 MIC & NAV 1 ......................................................................................... Select
Avionics Switch (BUS 2) ....................................................... Off (keep on if in clouds)
NOTE The following systems do not operate when the Avionics BUS 2 switch is set to Off:
Audio Panel, COM 2, NAV 2, Transponder, MFD, and Autopilot (if installed)

Land as Soon as Practical.

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 C-172 AIRCRAFT CHECKLIST C-172 AIRCRAFT CHECKLIST
EMERGENCY DESCENT PFD - LOSS OF AIR/ATTITUDE DATA
Throttle .................................................................................................................. Idle Loss of Air Data:
Mixture .................................................................................................................. Rich Standby Instruments (Altitude & Airspeed) .................................................... Monitor
Bank ............................................................................................................... 30°- 45° ADC/AHRS Circuit Breakers ......................................................................... Check in
Airspeed .............................................................................. Do Not Exceed 129 KIAS If Open, Reset (close)
Rollout .......................................................................................................Pilot Option If Circuit Breaker Reopens, DO NOT Reset
Exit IMC and Land as Soon as Practical.
WARNING: IN THE EVENT OF AN ENGINE FIRE, THE MIXTURE SHOULD BE
Loss of Attitude Data:
IDLE/CUT-OFF
Standby Attitude Indicator ............................................... Use for Attitude Information
SPIN RECOVERY Non-Stabilized Magnetic Compass ................................Use for Heading Information
ADC/AHRS Circuit Breakers ......................................................................... Check In
Throttle .................................................................................................................. Idle
............................If Open, Reset (close) If Circuit Breaker Reopens, DO NOT Reset
Ailerons ............................................................................................................ Neutral
Exit IMC and Land as Soon as Practical.
Rudder.................................................................. Full Opposite Direction of Rotation
Control Wheel..................................................................................... Briskly Forward
When Rotation Stops:
Rudder.............................................................................................................. Neutral
Control Wheel.......................................................................................... As Required
Throttle .................................................................................................... As Required

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 C-172 AIRCRAFT CHECKLIST C-172 AIRCRAFT CHECKLIST
INADVERTENT ICING ENCOUNTER HIGH CARBON MONOXIDE (CO) LEVEL ADVISOR
Pitot Heat Switch .................................................................................................... On Cabin HT Control Knob ........................................................................... Off (push in)
Maneuver ................................................................................... Exit Icing Conditions Cabin Air Control Knob ............................................................................ On (pull out)
Cabin HT Control Knob ........................................................................... On (pull out) Cabin Vents ........................................................................................................ Open
Defroster Control Outlets ................................................................................... Open Cabin Windows ......................................................................... (163 KIAS maximum)
Cabin Air Control Knob ..................................................................................... Adjust
If the CO LVL High annunciator remains illuminated:
Watch for signs of induction air filter icing. A loss of engine RPM could be caused WARNING: Land as Soon as Practical.
by ice blocking the air intake filter. Adjust the throttle as necessary to hold engine
RPM.
WARNING: BECAUSE OF THE PLACEMENT OF THE EXHAUST STACK AND
Adjust mixture as necessary for any change in power settings. If the induction air THE HEATER AIR INLET, UNDER SOME CIRCUMSTANCES DURING TAXI
filter is blocked, a spring-loaded alternate air door inside the cowling automatically OPERATIONS, CARBON MONOXIDE MAY BE PULLED INTO THE CABIN. IN
opens. Use of alternate air results in an approximately 10 percent loss of power. THE EVENT THE HIGH CO LEVEL ADVISORY ILLUMINATES, ALIGN THE
AIRCRAFT INTO THE WIND.
Plan a landing at the nearest airport. With an extremely rapid ice build-up, select a
IF THE HIGH CO LEVEL ADVISORY EXTINGUISHES, CONTINUE WITH THE
suitable off-airport landing site.
FLIGHT. IF THE ADVISORY DOES NOT EXTINGUISH, DO NOT CONTINUE
With an ice accumulation of 0.25 in or more on the wing leading edges, be prepared WITH THE FLIGHT
for significantly higher power requirements, higher approach, and stall speeds, and
a longer landing roll. Leave flaps retracted. With a severe ice build-up on the
horizontal tail, the change in wing wake airflow direction caused by flap extension
could result in loss of elevator effectiveness.
Open the left window and, if practical, scrape ice from a portion of the windshield for
increased visibility in the landing approach.
Perform a landing approach using a forward slip, if necessary for improved visibility.
Approach at 65 to 75 KIAS, depending upon the amount of ice accumulation.
Perform the landing in a level attitude.
Missed approaches should be avoided whenever possible, due to severely
reduced climb capability.

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 C-172 AIRCRAFT CHECKLIST C-172 AIRCRAFT CHECKLIST
Internal Power Check:
ABNORMAL PROCEDURES Master Switch (ALT) .............................................................................................. Off
Taxi & LAND Switches .......................................................................................... On
ENGINE START – FLOODED Throttle .................................................................................................................. Idle
Throttle .........................................................................................................Full Open Master Switch (ALT & BAT) ................................................................................... On
Mixture ....................................................................................................... Idle/Cut-Off Throttle ....................................................................................................... 1500 RPM
Propeller Area ..................................................................................................... Clear M BATT Ammeter ............................................................................. Positive Charge
Magnetos Switch .................................................................................................. Start Low Volts Annunciator ........................................................................ Not Illuminated
Mixture .................................................................................................................. Rich Taxi & LAND Switches .......................................................................................... Off
Throttle ....................................................................................................... 1000 RPM
FUEL FLOW STABILIZATION PROCEDURES
Oil Pressure....................................................................................................... Check
Fuel Pump Switch ................................................................................................... On
AMPS (M BATT S) .............................................................................. Check Positive
Mixture ........................................................................................ Adjust as Necessary
Low Volts Annunciator ........................................................................ Not Illuminated
Fuel Selector Valve .................................................................. Select Opposite Tank
ENGINE START – EXTERNAL POWER Fuel Pump Switch ................................................................................................... Off
Avionics Switches (BUS 1 & 2) ............................................................................. Off
LOW OIL PRESSURE
Master Switch (ALT & BAT) .................................................................................. Off
Annunciator Light ...................................................................... Check for illumination
External Power .............................................................................................. Connect
Oil Pressure Gauge ........................................................................................... Check
Master Switch (ALT & BAT) .................................................................................. On
Oil Temperature Gauge ..................................................................................... Check
Beacon Switch ....................................................................................................... On
Prepare for a power-off landing, see page 9.
M BUS Volts ............................................................................ Check, APPROX 28V
Throttle .................................................................................................1/4 Inch Open HIGH OIL TEMPERATURE
Fuel Pump Switch ................................................................................................. On Mixture .................................................................................................................. Rich
Mixture ................................................................................... Rich, Then Idle/Cut-Off Throttle............................................................................................................ Reduce
Fuel Pump Switch ................................................................................................. Off Oil Pressure Gauge ........................................................................................... Check
Propeller Area .................................................................................................... Clear Oil Temperature ................................................................................................. Check
Magnetos Switch ................................................................................................. Start Prepare for a power-off landing, see page 9.
Mixture ................................................................................................................. Rich
ENGINE ROUGHNESS
Throttle ...................................................................................................... 1000 RPM
Oil Pressure ...................................................................................................... Check Mixture .................................................................... Adjust for Maximum Smoothness
Throttle ................................................................................ 1500 RPM (3-5 minutes) Fuel Pump Switch ................................................................................................... On
Engine ........................................................................................................ Shutdown Fuel Shutoff Valve ............................................................................. On (push full in)
External Power ......................................................................................... Disconnect Fuel Selector ......................................................................................... Switch Tanks
Engine .............................................................................................................Restart Engine Gauges .................................................................................................. Check
Magnetos Switch ........................................................................... L then R then Both
If operation is satisfactory on either magneto, proceed on that magneto at reduced
Continued on the Next Page power with mixture full rich to the nearest airport.
If roughness persists - prepare for a power-off landing, see page 9

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 C-172 AIRCRAFT CHECKLIST C-172 AIRCRAFT CHECKLIST
OPEN DOOR LANDING WITH A FLAT TIRE
Airspeed ....................................................................................... Reduce to 75 KIAS Main Gear Flat
Cabin Vents ........................................................................................................ Close Runway Orientation ......... Land On Side of Runway Corresponding to the Good Tire
Window ............................................................................................................... Open Approach ......................................................................................................... Normal
Side Latch (If Open) ........................... Pull on Armrest and Move to Latched Position Flaps ...................................................................................................................... Full
Touchdown ................................................................................. Good Main Tire First
LOSS OF VACUUM PRESSURE Hold airplane off flat tire as long as possible with aileron control
Vacuum Indicator (VAC) ............................................................................ Check EIS Directional Control ......................................................................................... Maintain
WARNING: IF THE VACUUM POINTER IS NOT IN THE GREEN BAND DURING Use rudder and brake on the good wheel as required)
FLIGHT OR THE GYRO FLAG IS SHOWN ON THE STANDBY ATTITUDE
Taxi .................................................................................................. Stop the Airplane
INDICATOR, THE STANDBY ATTITUDE INDICATOR MUST NOT BE USED FOR
ATTITUDE INFORMATION. Normal Engine Shutdown

PITOT/STATIC BLOCKAGES Nose Gear Flat

Pitot Heat Switch .................................................................................................... On Runway Orientation .......................................................... Land on Center of Runway
ALT Static Air Valve ........................................................................................... Open Approach ......................................................................................................... Normal
Cabin Vents ...................................................................................................... Closed Flaps ........................................................................................................ As Required
Cabin HT/Air Control Knobs .............................................................. On (Pull full out)
Flight Instruments ................................................................................... Scan/Monitor Touchdown ......................................................................................... Main Gear First
Airspeed .................................................................................................Refer to POH Hold nose wheel off the ground as long as possible
Nose Wheel Touchdown .................................................... Maintain Full Up Elevator
LOSS OF COMMUNICATIONS Taxi .................................................................................................. Stop the Airplane
Headset Jacks and Volume .............................................................................. Check Normal Engine Shutdown
Push-to-Talk Switch .......................................................................................... Check
Radios ............................................................................................................... Switch
Circuit Breakers ............................. Check. (If a Breaker Has Popped, Do Not Reset)
Volume .................................................................. Check and Set to Adequate Level
Transponder .......................................................................................... Squawk 7600
Proceed as necessary for VFR or IFR conditions.
Alternate Courses of Action
Attempt to use different frequencies.
Faulty push-to-talk switch; try the button on the other control wheel.
Set audio panel to speaker (SPKR).
Use the hand-held microphone.
Use your cell phone, if available.

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