# Cessna 152 — Emergency Procedures (independently worded)

> **NOT FOR FLIGHT** — source fidelity: not_applicable | operational review: none | completeness: partial | 1 unresolved safety defect(s)

Emergency procedures for the Cessna 152 with Lycoming O-235 engine. Memory items are marked. No airspeeds or numerical limits are stated — those must come from the specific aircraft's POH. This file does not replace formal emergency training.

> **safety_defect**: Contains no airspeeds, power settings, fuel quantities, temperatures, or other numerical limitations. This file cannot serve as a complete working emergency checklist until those values are supplied from the aircraft's POH.
> **content_gap**: Equipment variations exist across the 152 production run. Confirm each item reflects the specific aircraft's installed equipment 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

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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.