Emergency Procedures

Question 1

Land as Soon as Possible

Answer 1

Land at the nearest suitable area (e.g. open field) without delay. (The primary consideration is to ensure the survival of the occupants).

Question 2

Land as Soon as Practicable

Answer 2

Land at a suitable area. (The primary consideration is the urgency of the emergency).

Question 3

Autorotate

Answer 3

Adjust the flight controls as necessary to establish an autorotational descent and landing.

Question 4

Establish Single Engine Airspeed (Definition)

Answer 4

Maneuvering the aircraft to an appropriate airspeed that will allow for continued flight under partial power conditions to a suitable recovery area.

Question 5

Emergency Engine Shutdown (Definition)

Answer 5

Engine shutdown without delay. Engine shutdown in flight is usually not an immediate-action item unless a fire exists. Before attempting an engine shutdown, identify the affected engine by checking ENG OUT warning lights, NP, NR, Q (torque), P (engine oil pressure), TGT and NG.

Question 6

Emergency Engine Shutdown (Caution)

Answer 6

If TGT rises above 500 degrees celsius after shutdown, place AIR SCE HT/STRT switch as required, turn ENGINE IGNITION switch OFF, and press starter to motor engine for 30 seconds or until TGT decreases below 500 degrees celsius.

Question 7

Lockout (Definition)

Answer 7

Manual control of engine RPM while bypassing DEC/EDECU functions. Bypass of the engine control will be required when NP1 or 2 decreases below normal demand speed due to a malfunction of the DEC/EDECU.

Question 8

Lockout (Warning)

Answer 8

Going to DEC/EDECU LOCKOUT to obtain additional power does not remove Maximum Fuel Flow or NG limits. NR will decrease below normal operating range if Maximum Fuel Flow or NG limits are exceeded.

Question 9

Lockout (Caution)

Answer 9

When engine is controlled with ENG POWER CONT lever in LOCKOUT, engine response is much faster and TGT limiting system is inoperative. Care must be taken not to exceed TGT limits and keeping NR and NP 1 and 2 in operating range.

Question 10

Lockout (EP)

Answer 10

1. ENG POWER CONT lever - Pull down and advance full forward while maintaining downward pressure, then adjust to set NR as required.

Engine control malfunctions can result in NR increasing or decreasing from normal demand speed. Under certain failure conditions, Q, NP, and NG may not be indicating and the possibility of the ENG OUT warning light and audio activating exists. The most reliable indication of engine power will be TGT.

Question 11

Establish Singe Engine Airspeed (EP)

Answer 11

1. Cyclic - Adjust as required.
2. Collective - Adjust as required to maintain NR within normal operating range.
3. Establish appropriate airspeed.

Question 12

Emergency Engine Shutdown (EP)

Answer 12

1. ENG POWER CNT lever(s) - OFF.
2. ENG FUEL SYS selector(s) - OFF.
3. FUEL BOOST PUMP switch(es) - OFF.

Question 13

Emergency APU start (Definition)

Answer 13

APU start to accomplish an emergency procedure.

Question 14

Emergency APU start (EP)

Answer 14

1. FUEL PUMP switch - APU BOOST.

2. APU CONT switch - ON.

Question 15

Engine Malfunction - Partial or Complete Power Loss (Warning)

Answer 15

Single engine capability must be considered prior to movement of the ENG PWR CONT lever. Prior to movement of either ENG POWER CONT lever, it is imperative that the malfunctioning engine and the corresponding ENG POWER CONT lever be identified. If the decision is made to shut down an engine, take at least five full seconds while retarding the ENG POWER CONT lever from FLY to IDLE, monitoring Q, NG, TGT, NP, and ENG OUT warning light on.

Question 16

Single Engine Failure (Warning)

Answer 16

Do not respond to ENG OUT warning and audio until checking TGT, NG, and NP1 and NP2.

Question 17

Single Engine Failure (EP)

Answer 17

1. Establish Single-Engine Airspeed.
2. External cargo/stores - Jettison (if required).
   If continued flight is not possible:
3. Land as Soon as Possible.
   If continued flight is not possible:
4. Land as Soon as Practicable.

Question 18

Engine Restart During Flight

Answer 18

After an engine failure in flight, an engine restart may be attempted. If it can be determined that it is reasonably safe to attempt a start, the APU should be used. Use of a cross bleed start could result in a power loss of up to 18% Q on the operational engine.

Question 19

Dual Engine Failure (EP)

Answer 19

Autorotate

Question 20

Dual Engine Failure (Warning)

Answer 20

Do not respond to ENG OUT warning lights and audio until checking TGT and NR.

Question 21

DEC/EDECU Low Side Failure (EP)

Answer 21

1. Establish Single Engine Airspeed.
   If partial powered flight cannot be maintained:
2. ENG POWER CONT lever (low Q/TGT engine) - Lockout.
3. Land as Soon as Practicable.

Question 22

DEC/EDECU Low Side Failure (Warning)

Answer 22

NR can also decrease as a result of exceeding the Maximum Torque Available due to reaching TGT limiting, Maximum Fuel Flow, or NG limiting without an associated hardware failure (rotor droop).

Going to DEC/EDECU Lockout to obtain additional power does not remove Maximum Fuel Flow or NG limits. NR may still decrease below normal operating range if Maximum Fuel Flow or NG limits are reached.

Question 23

DEC/EDECU Low Side Failure (Caution)

Answer 23

When engine is controlled with ENG POWER CONT lever in Lockout, engine respons is much faster and the TGT limiting system is inoperative. Care must be taken not to exceed TGT limits and keeping NR, NP1 and NP2 in operating range.

Question 24

DEC/EDECU Low Side Failure (Note)

Answer 24

If NR reduces from 100% to 95-96% during steady flight, check Q1 and Q2. If Q1 and Q2 are equal and below Maximum Torque Available, attempt to increase NR with ENG SPD TRIM switch.

Question 25

DEC/EDECU High Side Failure (EP)

Answer 25

1. Establish Single Engine Airspeed.
2. ENG POWER CONT lever (high Q/TGT engine) - Retard, Maintain Q approximately 10% below other engine.
3. Land as Soon as Practicable.
   If the affected engine does not respond to ENG POWER CONT lever movement in the range between FLY and IDLE, the HMU may be malfunctioning internally.

If this occurs:

4. Perform EMER ENG SHUTDOWN (affected engine).
5. Refer to single-engine failure emergency procedur.