Cessna 152 — Emergency Procedures (independently worded) NOT FOR FLIGHT — source fidelity: not_applicable | operational review: none | completeness: partial | 1 unresolved safety defect(s) Source: authored — no source document Rights: original_expression CC-BY-4.0 Checklist hash: e7bbd751bcbd8ae218da7078ffa4d99d2d5e716818a0f6d907e6095f79f40c2b Verify against the aircraft's own approved documentation before use. ======================================================================== ENGINE FAILURE ON TAKEOFF ROLL (BEFORE LIFT-OFF) [EMERGENCY] ------------------------------------------------------------- [ ] Throttle [MEMORY] ................................ CLOSED IMMEDIATELY [ ] Brakes [MEMORY] ............ APPLY FIRMLY TO STOP ON REMAINING RUNWAY [ ] Mixture [MEMORY] ....................................... IDLE CUT-OFF [ ] Ignition switch [MEMORY] ........................................ OFF [ ] Master switch [MEMORY] .......................................... OFF [ ] If unable to stop on runway, steer to minimize hazard to occupants and avoid populated areas ENGINE FAILURE AFTER LIFT-OFF [EMERGENCY] ------------------------------------------ [ ] Airspeed [MEMORY] ................ BEST GLIDE — ESTABLISH IMMEDIATELY ** CAUTION: Do not attempt to turn back to the runway at low altitude. Land approximately straight ahead or with minor heading changes to avoid obstacles. [ ] Landing area — select best available field ahead and within the glide [MEMORY] ... SELECTED [ ] Throttle [MEMORY] ............................................ CLOSED [ ] Mixture [MEMORY] ............... IDLE CUT-OFF when landing is assured [ ] Ignition switch ......................... OFF when landing is assured [ ] Master switch .................................. OFF before touchdown ENGINE FAILURE IN FLIGHT [EMERGENCY] ------------------------------------- [ ] Airspeed [MEMORY] ........ BEST GLIDE PER POH — ESTABLISH IMMEDIATELY [ ] Landing area [MEMORY] ... IDENTIFY SUITABLE FIELD WITHIN GLIDING RANGE [ ] Carburetor heat [MEMORY] ... FULL HOT — check for ice as cause of failure [ ] Fuel selector ....................................... CONFIRM BOTH ON [ ] Mixture ........................................................ RICH [ ] Primer .................................................... LOCKED IN [ ] Ignition switch ... CHECK BOTH; TRY LEFT THEN RIGHT IF ENGINE DOES NOT RESPOND [ ] Throttle ............. TRY PARTIAL ADVANCE TO CHECK FOR PARTIAL POWER [ ] If engine does not restart — proceed to forced landing ... MAINTAIN BEST GLIDE; COMMIT TO FORCED LANDING PROCEDURE [ ] Mayday — declare on 121.5 or current frequency ... MAYDAY DECLARED; SQUAWK 7700 ENGINE FIRE IN FLIGHT [EMERGENCY] ---------------------------------- [ ] Mixture [MEMORY] ....................................... IDLE CUT-OFF [ ] Throttle [MEMORY] ............................................ CLOSED [ ] Fuel selector [MEMORY] .......................................... OFF [ ] Master switch [MEMORY] .......................................... OFF [ ] Cabin heat and air vents ... CLOSED — prevent fire gases from entering cockpit [ ] Airspeed ... INCREASE TO AID AIRFLOW SUPPRESSION OF FIRE — DO NOT EXCEED STRUCTURAL LIMITS [ ] Forced landing ..... EXECUTE IMMEDIATELY — SEE FORCED LANDING SECTION [ ] Mayday ........... DECLARE ON 121.5 OR CURRENT FREQUENCY; SQUAWK 7700 ENGINE FIRE ON GROUND [EMERGENCY] ---------------------------------- [ ] Throttle — if induction fire, attempt to draw flame back into intake by cranking [MEMORY] ... CLOSED; ENGAGE STARTER TO CRANK IF INDUCTION FIRE [ ] Mixture [MEMORY] ....................................... IDLE CUT-OFF [ ] Fuel selector [MEMORY] .......................................... OFF [ ] Ignition switch [MEMORY] ........................................ OFF [ ] Master switch [MEMORY] .......................................... OFF [ ] Evacuate aircraft — all occupants [MEMORY] ... EXIT IMMEDIATELY AND MOVE WELL CLEAR, UPWIND [ ] Fire extinguisher and emergency services ... USE EXTINGUISHER IF SAFE TO APPROACH; CALL EMERGENCY SERVICES ELECTRICAL FIRE / SMOKE IN COCKPIT [EMERGENCY] ----------------------------------------------- [ ] Master switch [MEMORY] ......... OFF — remove electrical power source [ ] All electrical switches [MEMORY] ... OFF — individually, to isolate the fault before restoring power [ ] Cabin vents .......................... OPEN — ventilate cockpit smoke [ ] Fire extinguisher ... USE IF FIRE IS VISIBLE AND CAN BE REACHED SAFELY WITHOUT LOSING AIRCRAFT CONTROL [ ] Master switch — restore only if essential for continued safe flight ... ON CAUTIOUSLY; OFF IMMEDIATELY IF SMOKE RECURS [ ] Land as soon as practicable ... DIVERT TO NEAREST SUITABLE AIRPORT; DECLARE EMERGENCY IF REQUIRED LOSS OF OIL PRESSURE [EMERGENCY] --------------------------------- [ ] Oil pressure and temperature gauges ... CONFIRM LOW OR ZERO PRESSURE; NOTE IF TEMPERATURE IS ALSO RISING [ ] Landing area [MEMORY] ... IDENTIFY NEAREST SUITABLE FIELD AND PLAN FOR PRECAUTIONARY OR FORCED LANDING [ ] Power ... REDUCE TO MINIMUM REQUIRED FOR CONTINUED FLIGHT — HIGH POWER WITH NO OIL PRESSURE RISKS RAPID SEIZURE ** CAUTION: If oil temperature is also rising, engine failure is imminent. Do not wait for the engine to seize — proceed directly to forced landing. [ ] Mayday ........... DECLARE ON 121.5 OR CURRENT FREQUENCY; SQUAWK 7700 [ ] Mixture and ignition — when landing is assured ... MIXTURE IDLE CUT-OFF; IGNITION OFF CARBURETOR ICE [ABNORMAL] -------------------------- ** NOTE: Indications: unexplained RPM loss, rough running, or engine stoppage — particularly in moist air with temperatures between approximately 20°F and 70°F (-7°C to 21°C). The Lycoming O-235 in the 152 is considered especially susceptible to carburetor icing. Treat any unexplained power loss as carb ice until proven otherwise. [ ] Carburetor heat [MEMORY] ........ APPLY FULL HOT IMMEDIATELY AND HOLD [ ] Throttle — if engine is rough, hold current setting ... DO NOT REDUCE POWER FURTHER WHILE ICE IS PRESENT [ ] Expect a further RPM drop as ice melts and passes through — this is normal. Continue holding FULL HOT. [ ] Recovery confirmed ... RPM RETURNS AND STABILIZES ABOVE PRE-ICE LEVEL; ENGINE RUNNING SMOOTHLY [ ] If engine does not recover — prepare for forced landing ... ESTABLISH BEST GLIDE; EXECUTE FORCED LANDING PROCEDURE [ ] After recovery — carburetor heat management ... CONTINUE CARB HEAT AS CONDITIONS WARRANT; DO NOT RETURN TO COLD IF ICING CONDITIONS PERSIST FORCED LANDING (POWER-OFF) [EMERGENCY] --------------------------------------- [ ] Airspeed [MEMORY] ... BEST GLIDE PER POH — ESTABLISHED AND HELD THROUGHOUT [ ] Field selection [MEMORY] ... CHOOSE OPEN, LEVEL SURFACE INTO WIND WHERE POSSIBLE; AVOID OBSTACLES AND POPULATED AREAS [ ] Mayday call — 121.5 MHz or current frequency ... MAYDAY DECLARED: AIRCRAFT TYPE, POSITION, ALTITUDE, INTENTIONS [ ] Transponder .................................................... 7700 [ ] Fuel selector — when field is assured ........................... OFF [ ] Mixture — when field is assured ........................ IDLE CUT-OFF [ ] Ignition switch ................................................. OFF [ ] Master switch .................................. OFF BEFORE TOUCHDOWN [ ] Flaps — deploy when field is positively within reach ... EXTENDED AS REQUIRED FOR APPROACH ANGLE [ ] Seat belts and harnesses — all occupants .............. CONFIRM TIGHT [ ] Doors — unlatch before touchdown ... UNLATCHED TO PREVENT JAMMING ON IMPACT [ ] Touch down at minimum controllable airspeed; use all available terrain to roll out and stop