Cessna 172R Skyhawk — TFA_Cessna 172R_Checklist

CABIN preflight_inspection

Pitot Tube CoverREMOVE. Check for pitot blockage.
Pilot’s Operating HandbookAVAILABLE IN AIRPLANE.
Airplane Weight and BalanceCHECKED.
Parking BrakeSET.
Control Wheel LockREMOVE.
Ignition SwitchOFF.
Avionics Master SwitchOFF.
WARNINGWHEN TURNING ON THE MASTER SWITCH, USING AN EXTERNAL POWER SOURCE, OR PULLING THE PROPELLER THROUGH BY HAND, TREAT THE PROPELLER AS IF THE IGNITION SWITCH WERE ON. DO NOT STAND, NOR ALLOW ANYONE ELSE TO STAND, WITHIN THE ARC OF THE PROPELLER, SINCE A LOOSE OR BROKEN WIRE OR A COMPONENT MALFUNCTION COULD CAUSE THE PROPELLER TO ROTATE.
Master SwitchON.
Fuel Quantity IndicatorsCHECK QUANTITY and ENSURE LOW FUEL ANNUNCIATORS (L LOW FUEL R) ARE EXTINQUISHED.
Avionics Master SwitchON.
Avionics Cooling FanCHECK AUDIBLY FOR OPERATION.
Avionics Master SwitchOFF.
Static Pressure Alternate Source ValveOFF.
Annunciator Panel SwitchPLACE AND HOLD IN TST POSITION and ensure all annunciators illuminate.
Annunciator Panel Test SwitchRELEASE. Check that appropriate annunciators remain on.
NOTEWhen Master Switch in turned ON, some annunciators will flash for approximately 10 seconds before illuminating steadily. When panel TST switch is toggled up and held in position, all remaining lights will flash until the switch is released.
Fuel Selector ValveBOTH.
Fuel Shutoff ValveON (Push Full In).
FlapsEXTEND.
Pitot HeatON. (Carefully check that the pitot tube is warm to the touch within 30 seconds).
Pitot HeatOFF.
Master SwitchOFF.
Elevator TrimSET for takeoff.
Baggage DoorCHECK, lock with key.
Autopilot Static Source Opening (if installed)CHECK for blockage.

EMPENNAGE preflight_inspection

Rudder Gust Lock (if installed)REMOVE.
Tail Tie DownDISCONNECT.
Control SurfacesCHECK freedom of movement and security.
Trim TabCHECK security.
AntennasCHECK for security of attachment and general condition.

RIGHT WING Trailing Edge preflight_inspection

AileronCHECK freedom of movement and security.
FlapCHECK for security and condition.

RIGHT WING preflight_inspection

Wing Tie DownDISCONNECT.
Main Wheel TireCHECK for proper inflation and general condition (weather checks, tread depth and wear, etc…).
Fuel Tank Sump Quick Drain ValvesDRAIN at least a cupful of fuel (using sampler cup) from each sump location to check for water, sediment, and proper fuel grade before each flight and after each refueling. If water is observed, take further samples until clear and then gently rock wings and lower tail to the ground to move any additional contaminants to the sampling points. Take repeated samples from all fuel drain points until all contamination has been removed. If contaminants are still present, refer to WARNING below and ...
WARNINGIF, AFTER REPEATED SAMPLING, EVIDENCE OF CONTAMINATION STILL EXISTS, THE AIRPLANE SHOULD NOT BE FLOWN. TANKS SHOULD BE DRAINED AND SYSTME PURGED BY QUALIFIED MAINTENANCE PERSONNEL. ALL EVIDENCE OF CONTAMINATION MUST BE REMOVED BEFORE FLIGHT.
Fuel QuantityCHECK VISUALLY for desired level.
Fuel Filler CapSECURE and VENT UNOBSTRUCTED.

NOSE preflight_inspection

Fuel Strainer Quick Drain Valve (Located on bottom of fuselage)DRAIN at least a cupful of fuel (using sampler cup) from valve to check for water, sediment, and proper fuel grade before each flight and after each refueling. If water is observed, take further samples until clear and then gently rock wings and lower tail to the ground to move any additional contaminants to the sampling points. Take repeated samples from all fuel drain points until all contamination has been removed. If contaminants are still present, refer to WARNING from right wing and do ...
Engine Oil Dipstick/Filler CapCHECK oil level, then check dipstick/filler cap SECURE. Do not operate with less than five quarts. Fill to eight quarts for extended flights.
Engine Cooling InletsCLEAR of obstructions.
Propeller and SpinnerCHECK for nicks and security.
Air FilterCHECK for restrictions by dust or other foreign matter.
Nose Wheel Strut and TireCHECK for proper inflation of strut and general condition (weather checks, tread depth and wear, etc…) of tire.
Left Static Source OpeningCHECK for blockage.

LEFT WING preflight_inspection

Fuel QuantityCHECK VISUALLY for desired level.
Fuel Filler CapSECURE AND VENT UNOBSTRUCTED.
Fuel Tank Sump Quick Drain ValvesDRAIN at least a cupful of fuel (using sampler cup) from each sump location to check for water, sediment, and proper fuel grade before each flight and after each refueling. If water is observed, take further samples until clear and then gently rock wings and lower tail to the ground to move any additional contaminants to the sampling points. Take repeated samples from all fuel drain points until all contamination has been removed. If contaminants are still present, refer to WARNING from right...
Main Wheel TireCHECK for proper inflation and general condition (weather checks, tread depth and wear, etc…).

LEFT WING Leading Edge preflight_inspection

Fuel Tank Vent OpeningCHECK for blockage.
Stall Warning OpeningCHECK for blockage. To check the system, place a clean handkerchief over the vent opening and apply suction; sound from the warning horn will confirm system operation.
Wing Tie DownDISCONNECT.
Landing/Taxi Light(s)CHECK for condition and cleanliness of cover.

LEFT WING Trailing Edge preflight_inspection

AileronCHECK for freedom of movement and security.
FlapCHECK for security and condition.

AIRSPEEDS FOR NORMAL OPERATIONS reference

Normal Climb Out70-80 KIAS
Short Field Takeoff, Flaps 10°, Speed at 50’57 KIAS
Enroute Climb Flaps Up: Normal, Sea Level75-85 KIAS
Normal, 10,000 Feet70-80 KIAS
Best Rate-of-Climb, Sea Level79 KIAS
Best Rate-of-Climb, 10,000 Feet71 KIAS
Best Angle-of-Climb, Sea Level60 KIAS
Best Angle-of-Climb, 10,000 Feet65 KIAS
Landing Approach: Normal Approach, Flaps Up65-75 KIAS
Normal Approach, Flaps 3060-70 KIAS
Short Field Approach, Flaps 3062 KIAS
Balked Landing: Maximum Power, Flaps 2055 KIAS
Maximum Recommended Turbulent Air Penetration Speed: 2400 Lbs99 KIAS
2000 Lbs92 KIAS
1600 Lbs82 KIAS
Maximum Demonstrated Crosswind Velocity: Takeoff or Landing15 KNOTS

BEFORE STARTING ENGINE before_start

Preflight InspectionCOMPLETE.
Passenger BriefingCOMPLETE.
Seats and Seat BeltsADJUST and LOCK. Ensure inertia real is locking.
BrakesTEST and SET.
Circuit BreakersCHECK IN.
Electrical EquipmentOFF.
CAUTIONTHE AVIONICS MASTERR SWITCH MUST BE OFF DURING ENGINE START TO PREVENT POSSIBLE DAMAGE TO AVIONICS.
Avionics Master SwitchOFF.
Fuel Selector ValveBOTH.
Fuel Shutoff ValveON (Push Full In).
Avionics Circuit BreakersCHECK IN.

STARTING ENGINE (With Battery) engine_start

ThrottleOPEN ¼ INCH.
MixtureIDLE CUTOFF.
Propeller AreaCLEAR.
Master SwitchON.
Flashing BeaconON.
NOTEIf engine is warm, omit priming procedure of steps 6, 7 and 8 below.
Auxiliary Fuel Pump SwitchON.
MixtureSET to FULL RICH (full forward) until stable fuel flow is indicated (usually 3 to 5 seconds), then set to IDLE CUTOFF (full aft) position.
Auxiliary Fuel PumpOFF.
Ignition SwitchSTART (release when engine starts).
MixtureADVANCE smoothly to RICH when engine starts.
NOTEIf engine floods (engine has been primed too much), turn off auxiliary fuel pump, set mixture to idle cutoff, open throttle ½ to full, and motor (crank) engine. When engine starts, set mixture to full rich and close throttle promptly.
Oil PressureCHECK.
Navigation LightsON as required.
Avionics Master SwitchON.
RadiosON.
FlapsRETRACT.

STARTING ENGINE (With External Power) engine_start

ThrottleOPEN ¼ INCH.
MixtureIDLE CUTOFF.
Propeller AREACLEAR.
Master SwitchOFF.
External PowerCONNECT to airplane receptacle.
Master SwitchON
Flashing BeaconON.
NOTEIf engine is warm, omit priming procedure of steps 8, 9 and 10 below.
Auxiliary Fuel SwitchON
MixtureSET FULL RICH (full forward) until stable fuel flow is indicated (usually 3 to 5 seconds), then set to IDLE CUTOFF (full aft) position.
Auxiliary Fuel PumpOFF.
Ignition SwitchSTART (release when engine starts).
MixtureADVANCE smoothly to RICH when engine starts.
NOTEIf engine floods (engine has been primed too much), turn off auxiliary fuel pump, set mixture to idle cutoff, open throttle ½ to full, and motor (crank) engine. When engine starts, set mixture to full rich and close throttle promptly.
Oil PressureCHECK.
External PowerDISCONNECT from airplane receptacle. Secure external power door.
Electrical SystemCHECK FOR PROPER OPERATION.
a. Master SwitchOFF (disconnects both the battery and alternator from the system).
b. Taxi and Landing Lights SwitchesON (provides an initial electrical load on the system).
c. Engine RPMREDUCE to idle. (Minimum alternator output occurs at idle).
d. Master SwitchON (taxi and landing lights ON). (The ammeter should indicate in the negative direction, showing that the alternator output is below the load requirements, but the battery is supplying current to the system.)
e. Engine RPMINCREASE to approximately 1500 RPM (as engine RPM increases, alternator output should increase to meet the system load requirements)...
f. Ammeter and Low Voltage AnnunciatorCHECK (the ammeter should indicate in the positive direction, showing that the alternator is supplying current and the Low Voltage Annunciator (VOLTS) should not be lighted).
Navigation LightsON as required.
Avionics Master SwitchON.
RadiosON.
FlapsRETRACT.

BEFORE TAKEOFF before_takeoff

Parking BrakeSET.
Passenger Seat BacksMOST UPRIGHT POSITION.
Seats and Seat BeltsCHECK SECURE.
Cabin DoorsCLOSED AND LOCKED.
Flight ControlsFREE and CORRECT.
Flight InstrumentsCHECK and SET
Fuel QuantityCHECK.
MixtureRICH.
Fuel Selector ValveRECHECK BOTH.
Throttle1800 RPM.
a. MagnetosCHECK (RPM drop should not exceed 150 RPM on either magneto or 50 RPM differential between magnetos.
b. Vacuum GageCHECK.
c. Engine Instruments and AmmeterCHECK.
Annunciator PanelEnsure no annunciators are illuminated.
ThrottleVery smooth engine operation at idle speed of 575 to 625 RPM.
Throttle1000 RPM or LESS.
Throttle Friction LockADJUST.
Strobe LightsAS DESIRED.
Radios and AvionicsSET.
NAV/GPS Switch (if installed)SET.
Autopilot (if installed)OFF.
Elevator TrimSET.
Wing FlapsSET for takeoff (0° – 10°).
BrakesRELEASE.

TAKEOFF — NORMAL TAKEOFF takeoff

Wing Flaps(0° – 10°).
ThrottleFULL OPEN.
MixtureRICH (above 3000 feet, LEAN to obtain maximum RPM).
Elevator ControlLIFT NOSE WHEEL (at 55 KIAS).
Climb Speed70 to 80 KIAS
Wing FlapsRETRACT.

SHORT FIELD TAKEOFF takeoff

Wing Flaps10°
BrakesAPPLY.
ThrottleFULL OPEN.
MixtureRICH (above 3000 feet, LEAN to obtain maximum RPM).
BrakesRELEASE.
Elevator ControlSLIGHTLY TAIL LOW.
Climb Speed57 KIAS (until all obstacles are cleared).
Wing FlapsRETRACT slowly after reaching 60 KIAS.

ENROUTE CLIMB climb

Airspeed70-85 KIAS
NOTEIf a maximum performance climb is necessary, us speeds shown in the Rate of Climb chart in Section 5.
ThrottleFULL OPEN.
MixtureRICH (above 300 feet, LEAN to obtain maximum RPM).

CRUISE cruise

Power2000-2400 RPM (No more than 80% is recommended).
Elevator TrimADJUST.
MixtureLEAN.

DESCENT descent

PowerAS DESIRED.
MixtureADJUST for smooth operation.
AltimeterSET.
NAV/GPS SwitchSET.
Fuel Selector ValveBOTH.
Wing FlapsAS DESIRED (0° to 10° below 110 KIAS, 10° to 30° below 85 KIAS).

BEFORE LANDING before_landing

Pilot and Passenger Seat BacksMOST UPRIGHT POSITION.
Seats and Seat BeltsSECURE and LOCKED.
Fuel Selector ValveBOTH.
MixtureRICH.
Landing/Taxi LightsON.
Autopilot (if installed)OFF.

LANDING — NORMAL LANDING landing

Airspeed65-75 KIAS (flaps UP).
Wing FlapsAS DESIRED (0°-10° below 110 KIAS, 10°-30° below 85 KIAS).
Airspeed60-70 KIAS (flaps DOWN).
TouchdownMAIN WHEELS FIRST.
Landing RollLOWER NOSE WHEEL GENTLY.
BrakingMINIMUM REQUIRED.

SHORT FIELD LANDING landing

Airspeed65-75 KIAS (flaps UP)
Wing FlapsFULL DOWN (30°).
Airspeed62 KIAS (until flare).
PowerREDUCE to idle after clearing obstacle.
TouchdownMAIN WHEELS FIRST.
BrakesAPPLY HEAVILY.
Wing FlapsRETRACT.

BALKED LANDING go_around

ThrottleFULL OPEN.
Wing FlapsRETRACT TO 20°.
Climb Speed55 KIAS.
Wing Flaps10 (until obstacles are cleared). RETRACT (after reaching a safe altitude and 60 KIAS).

AFTER LANDING after_landing

Wing FlapsUP.
TransponderSTANDBY.
Pitot HeatOFF.
LightsAS REQUIRED.
Taxi ClearanceOBTAIN.

SECURING AIRPLANE securing

Parking BrakeSET.
Electronic Equipment, Autopilot (if installed)OFF.
Avionics Master SwitchOFF.
MixtureIDLE CUTOFF (pulled full out).
Ignition SwitchOFF.
Master SwitchOFF.
Control LockINSTALL.
Fuel Selector ValveLEFT or RIGHT to prevent cross feeding.

AIRSPEEDS FOR EMERGENCY OPERATION reference

Engine Failure After Takeoff: Wing Flaps Up65 KIAS
Wing Flaps Down60 KIAS
Maneuvering Speed: 2450 Lbs99 KIAS
2100 Lbs92 KIAS
1600 Lbs82 KIAS
Maximum Glide65 KIAS
Precautionary landing With Engine Power60 KIAS
Landing Without Engine Power: Wing Flaps Up65 KIAS
Wing Flaps Down60 KIAS

ENGINE FAILURE DURING TAKEOFF ROLL takeoff

Engine failure during takeoff roll

ThrottleMEMORYIDLE.
BrakesAPPLY.
Wing FlapsRETRACT.
MixtureIDLE CUTOFF.
Ignition SwitchOFF.
Master SwitchOFF.

ENGINE FAILURE IMMEDIATELY AFTER TAKEOFF engine_failure_after_takeoff

Engine failure immediately after takeoff

AirspeedMEMORY65 KIAS (flaps up). 60 KIAS (flaps down).
MixtureIDLE CUTOFF.
Fuel Shutoff ValveOFF (Pull Full Out).
Ignition SwitchOFF.
Wing FlapsAS REQUIRED.
Master SwitchOFF.
Cabin DoorUNLATCH.
LandSTRAIGHT AHEAD.

ENGINE FAILURE DURING FLIGHT (Restart Procedures) engine_failure_in_flight

Engine failure during flight

AirspeedMEMORY65 KIAS.
Fuel Shutoff ValveON (push full in).
Fuel Selector ValveBOTH.
Auxiliary Fuel Pump SwitchON.
MixtureRICH (if restart has not occurred).
Ignition SwitchBOTH (or START if propeller is stopped).
NOTEIf the propeller is windmilling, the engine will restart automatically within a few seconds. If the propeller has stopped (possible at low speeds), turn the ignition switch to START, advance the throttle slowly from idle and lean the mixture from the full rich as required for smooth operation.
Auxiliary Fuel Pump SwitchOFF.
TROUBLESHOOT
MixtureIDLE CUT OFF
Throttlecycle full then idle
MixtureRich
NOTEIf the fuel flow indicator immediately drops to zero (indicating an engine-driven fuel pump failure), return the Auxiliary Fuel Pump Switch to the ON position.

EMERGENCY LANDING WITHOUT ENGINE POWER forced_landing

Emergency landing without engine power

Passenger Seat BacksMOST UPRIGHT POSITION.
Seats and Seat BeltsSECURE.
Airspeed65 KIAS (flaps UP). 60 KIAS (flaps DOWN).
MixtureIDLE CUTOFF.
Fuel Shutoff ValveOFF (Pull Full Out).
Ignition SwitchOFF.
Wing FlapsAS REQURED (30° recommended).
Master SwitchOFF (when landing is assured).
DoorsUNLATCH PRIOR TO TOUCHDOWN.
TouchdownSLIGHTLY TAIL LOW.
BrakesAPPLY HEAVILY.

PRECAUTIONARY LANDING WITH ENGINE POWER forced_landing

Precautionary landing with engine power

Passenger Seat BacksMOST UPRIGHT POSITION.
Seats and Seat BeltsSECURE.
Airspeed60 KIAS.
Wing Flaps20°.
Selected FieldFLY OVER, noting terrain and obstructions, then retract flaps upon reaching a safe altitude and airspeed.
Avionics Master Switch and Electrical SwitchesOFF.
Wing Flaps30° (on final approach).
Airspeed60 KIAS.
Master SwitchOFF.
DoorsUNLATCH PRIOR TO TOUCHDOWN.
TouchdownSLIGHTLY TAIL LOW.
Ignition SwitchOFF.
MixtureIDLE CUTOFF.
BrakesAPPLY HEAVILY.

DITCHING ditching

Ditching

RadioTRANSMIT MAYDAY on 121.5 MHz, giving location and intentions and SQUAWK 7700.
Heavy Objects (in baggage area)SECURE OR JETTISON (if possible).
Passenger Seat BacksMOST UPRIGHT POSITION.
Seat and Seat BeltsSECURE.
Wing Flaps20° to 30°.
PowerESTABLISH 300 FT/MIN DESCENT AT 55 KIAS.
NOTEIf no power is available, approach at 65 KIAS with flaps up or at 60 KIAS with 10 flaps.
ApproachHigh Winds, Heavy Seas—INTO THE WIND; Light Winds, Heavy Swells – PARALLEL TO SWELLS.
Cabin DoorsUNLATCH.
TouchdownLEVEL ATTITUDE AT ESTABLISHED RATE OF DESCENT.
FaceCUSHIION at touchdown with folded coat.
ELTActivate.
AirplaneEVACUATE through cabin doors. If necessary, open window and flood cabin to equalize pressure so doors can be opened.
Life Vests and RaftINFLATE WHEN CLEAR OF AIRPLANE.

FIRES — DURING START ON GROUND engine_fire_ground

Fire during start on ground

CrankingMEMORYSTART, CONTINUE CRANKING to get a start which would suck the flames and accumulated fuel into the engine.
If engine starts:
Power1700 RPM for a few minutes.
EngineSHUTDOWN and inspect for damage.
If engine fails to start:
ThrottleFULL OPEN.
MixtureIDLE CUTOFF.
CrankingCONTINUE.
Fuel Shutoff ValveOFF (pull full out).
Auxiliary Fuel PumpOFF.
Fire ExtinguisherOBTAIN (have ground attendants obtain if not installed).
EngineSECURE.
a. Master SwitchOFF.
b. Ignition SwitchOFF.
Parking BrakeRELEASE.
AirplaneEVACUATE.
FireEXTINGUISH using fire extinguisher, wool blanket, or dirt.
Fire DamageINSPECT, repair damage or replace damaged components or wiring before conducting another flight.

ENGINE FIRE IN FLIGHT engine_fire_in_flight

Engine fire in flight

MixtureMEMORYIDLE CUTOFF.
Fuel Shutoff ValveOFF.
Auxiliary Fuel Pump SwitchOFF.
Master SwitchOFF.
Cabin Heat and AirOFF (except overhead vents).
Airspeed100 KIAS (If fire is not extinguished, increase glide speed to find an airspeed – within airspeed limitations – which will provide an incombustible mixture).
Forced LandingEXCUTE (as described in Emergency Landing Without Engine Power).

ELECTRICAL FIRE IN FLIGHT electrical_fire

Electrical fire in flight

Master SwitchMEMORYOFF.
Vents, Cabin Air, HeatCLOSED.
Fire ExtinguisherACTIVATE (if available).
Avionics Power SwitchOFF.
All Other Switches (except ignition switch)OFF.
WARNINGAFTER DISCHARING FIRE EXTINGUISHER AND ASCERTAINING THAT FIRE HAS BEEN EXTINGUISHED, VENTILATE THE CABIN.
Vents/Cabin Air/HeatOPEN when it is ascertained that fire is completely extinguished.
If fire has been extinguished and electrical power is necessary for continuance of flight to nearest suitable airport or landing area:
Master SwitchON.
Circuit BreakersCHECK for faulty circuit, do not reset.
Radio SwitchesOFF.
Avionics Power SwitchON.
Radio/Electrical SwitchesON one at a time, with delay after each until short circuit is localized.

CABIN FIRE cabin_fire

Cabin fire

Master SwitchMEMORYOFF.
Vents/Cabin Air/HeatCLOSED (to avoid drafts).
Fire ExtinguisherACTIVATE (if available).
WARNINGAFTER DISCHARING FIRE EXTINGUISHER AND ASCERTAINING THAT FIRE HAS BEEN EXTINGUISHED VENTILATE THE CABIN.
Vents/Cabin Air/HeatOpen when it is ascertained that fire is completely extinguished.
Land the airplane as soon as possibleto inspect for damage.

WING FIRE WING FIRE

Wing fire

Landing/Taxi Light SwitchesMEMORYOFF.
Navigation Light SwitchOFF.
Strobe Light SwitchOFF.
Pitot Heat SwitchOFF.
NOTEPerform a sideslip to keep the flames away from the fuel tank and cabin. Land as soon as possible using flaps only as required for final approach and touchdown.

INADVERTENT ICING ENCOUNTER icing

Inadvertent icing encounter

Pitot Heat SwitchMEMORYTurn ON.
Turn back or change altitudeto obtain an outside air temperature that is less conducive to icing.
Cabin Heat ControlPull full out and open defroster outlets to obtain maximum windshield defroster airflow. Adjust cabin air control to get maximum defroster heat and airflow.
Engine-related icingWatch for signs of engine-related icing conditions. An unexplained loss in engine speed could be caused by ice blocking the air intake filter, or, in extremely rare instances, ice completely blocking the fuel injection air reference tubes. Change the throttle position to obtain the maximum RPM. This may require either advancing or retarding the throttle, dependent on where ice as accumulated in the system. Adjust mixture, as required, for maximum RPM.
Plan a landingat the nearest airport. With extremely rapid ice build up, select a suitable “off airport” landing site.
Stall speed and landing rollWith an ice accumulation of ¼ inch or more on the wing leading edges, be prepared for significantly higher stall speed and a longer landing roll.
Wing FlapsLeave retracted. With severe ice build up on the horizontal tail, the change in wing wake airflow direction caused by wing flap extension could result in a loss of elevator effectiveness.
Left WindowOpen and, if practical, scrape ice from a portion of the windshield for visibility in the landing approach.
Landing ApproachPerform using a forward slip, if necessary, for improved visibility.
AirspeedApproach at 65 to75 KIAS depending upon the amount of accumulation.
LandingPerform in level attitude.

STATIC SOURCE BLOCKAGE (Erroneous Instrument Reading Suspected) pitot_static_failure

Static source blockage

Static Pressure Alternate Source ValveMEMORYPULL ON.
AirspeedConsult appropriate calibration tables in Section 5.

LANDING WITH A FLAT MAIN TIRE landing

Flat main tire

ApproachNORMAL.
Wing Flaps30°.
TouchdownGOOD MAIN TIRE FIRST, hold airplane off flat tire as long as possible with aileron control.
Directional ControlMAINTAIN using braking on good wheel as required.

LANDING WITH A FLAT NOSE TIRE landing

Flat nose tire

ApproachNORMAL.
FlapsAS REQUIRED.
TouchdownON MAINS, hold nose wheel off the ground as long as possible.
ElevatorWhen nose wheel touches down, maintain full up elevator as airplane slows to stop.

AMMETER SHOWS EXCESSIVE RATE OF CHARGE (Full Scale Deflection) electrical_failure

Ammeter shows excessive rate of charge

AlternatorOFF.
CAUTIONWITH THE ALTERNATOR SIDE OF THE MASTER SWITCH OFF, COMPASS DEVIATIONS OF AS MUCH OF 25° MAY OCCUR.
Nonessential Electrical EquipmentOFF.
FlightTERMINATE as soon as practical.

LOW VOLTAGE ANNUNCIATOR (VOLTS) ILLUMINATES DURING FLIGHT (Ammeter Indicates Discharge) electrical_failure

Low voltage annunciator illuminates during flight

NOTEIllumination of “VOLTS” on the annunciator panel may occur during low RPM conditions with an electrical load on the system such as during a low RPM taxi. Under these conditions, the annunciator will go out at higher RPM. The master switch need not be recycled since an overvoltage condition has not occurred to deactivate the alternator system.
Avionics Master SwitchOFF.
Alternator Circuit Breaker (ALT FLD)CHECK IN.
Master SwitchOFF (both sides).
Master SwitchON.
Low Voltage Annunciator (VOLTS)CHECK OFF.
Avionics Master SwitchON.
If low voltage annunciator illuminates again:
CAUTIONWITH THE ALTERNATOR SIDE OF THE MASTER SWITCH OFF, COMPASS DEVIATIONS OF AS MUCH AS 25° MAY OCCUR.
AlternatorOFF.
Nonessential Radio and Electrical EquipmentOFF.
FlightTERMINATE as soon as practical.

VACUUM SYSTEM FAILURE — Left Vacuum (L VAC) or Right Vacuum (VAC R) Annunciator Light Illuminates vacuum_failure

Vacuum system failure

CAUTIONIF VACUUM IS NOT WITHIN NORMAL OPERATING LIMITS, A FAILURE HAS OCCURRED IN THE VACUUM SYSTEM AND PARTIAL PANEL PROCEDURES MAY BE REQURED FOR CONTINUED FLIGHT.
Vacuum gageCHECK to ensure vacuum is within normal limits.

Cessna 172R Skyhawk — TFA_Cessna 172R_Checklist_2004-01

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