Normal and Abnormal/Emergency Procedures
This domain tests whether you can run memory items, verify the diagnosis, and then complete the checklist in the right order without making a bad situation worse. It covers engine failure and fire, single-engine handling, depressurization, smoke, and unreliable or jammed controls.
Engine failure and fire
- Identify the failed engine using rudder pressure (the "dead leg") plus instrument confirmation before feathering; never act on a single first indication.
- In-flight fire memory sequence: power lever idle, condition/mixture cutoff, fire handle pull (closes the fuel shutoff valve and arms the bottle), discharge the bottle, then complete the checklist.
- During a start fire, continue motoring the engine before pulling the fire handle so residual fuel is cleared from the hot section.
Decision speeds and single-engine flight
- Before V1, reject. At or after V1, continue, rotate at Vr, confirm a positive climb, clean up, and identify/verify/feather.
- Bank about 5° into the operating engine, hold V2 to V2+10, and use the published single-engine climb speed for the segment.
Depressurization and smoke
- Masks on, establish communications, and initiate an emergency descent to 10,000 ft or the MEA, whichever is higher; squawk 7700 and advise ATC.
- For smoke, configure bleed sources per the smoke-removal checklist and descend promptly.
Worked example
A twin turboprop loses an engine just after V1. Keep the airplane straight with rudder, rotate at Vr, confirm positive rate, select gear up, and identify the dead engine by the leg that relaxes on the rudder. Verify torque and ITT near zero, feather, set maximum continuous power, and climb at V2 to V2+10. Identifying by "the engine that looks wrong" before verification has caused crews to feather the good engine.
Traps
Feathering the wrong engine; retarding the wrong lever; letting airspeed decay below V2 while troubleshooting; descending below terrain-safe altitude during driftdown; forgetting to reset pressurization after a smoke event.