Chinook CH-47/Emergency Procedures
1 General
This section describes the most common helicopter emergencies that may be encountered in the Chinook, and the appropriate actions to address those emergencies.
2 Definitions
The following terms apply for this section:
- The term LAND AS SOON AS POSSIBLE is defined as a landing to the nearest suitable landing surface. Survival of the occupants is considered the highst priority.
- The term LAND AS SOON AS PRACTICABLE means land at the nearest suitable airfield or heliport.
- The term AUTOROTATE means adjusting the controls to establish an autorotation and landing. This generally means thurst control full down, then adjust as necessary to maintain 100% rotor RPM.
3 Emergency Warning Signals
This helicopter is equipped with a troop alarm and jump light system. The following standard signals can be used to notify occupants:
- Prepare for ditching or crash landing - 3 short rings
- Water contact - Sustained ring
4 Emergency Checklists
4.1 Dual Engine Failure
Indications:
- ENG 1 FAIL and ENG 2 FAIL caution lights
- N1 and N2 underspeed
- Engine flameout
Procedure:
- AUTOROTATE
- External cargo - Jettison
