Chapter 9 Flashcards
The term LAND AS SOON AS POSSIBLE is defined as:
landing at the nearest suitable landing area (e.g., open field) without delay. (The primary consideration is to ensure the survival of occupants.)
The term LAND AS SOON AS PRACTIBLE is defined as:
landing at a suitable landing area. (The primary consideration is the urgency of the emergency.)
The term AUTOROTATE is defined as:
Adjusting the flight controls as necessary to establish an autorotational descent and landing.
The term ESTABLISH SINGLE-ENGINE AIRSPEED is defined as:
1.
2.
3.
maneuvering the aircraft to an appropriate airspeed that will allow for continued flight under partial power conditions to a suitable recovery area
- Cyclic - Adjust as required.
- Collective - Adjust as required to maintain % RPM R within normal operating range.
- Establish appropriate airspeed
The term EMER ENG SHUTDOWN is defined as:
engine shutdown without delay.
① ENG POWER CONT lever(s) - OFF.
② ENG FUEL SYS selector(s) - OFF.
③ FUEL BOOST PUMP CONTROL switch(es) - OFF.
The term LOCKOUT is defined as:
manual control of engine RPM while bypassing 700 ECU, or 701C 701D/CC DEC/EDECU functions
ENG POWER CONT lever - Pull down and advance full forward while maintaining downward pressure, then adjust to set % RPM R as required.
The term EMER APU START is defined as:
APU start to accomplish an emergency procedure.
① FUEL PUMP switch - APU BOOST.
② APU CONTR switch - ON.
SINGLE ENGINE FAILURE
- ESTABLISH SINGLE-ENGINE AIRSPEED.
② External cargo/stores - Jettison (if required).
If continued flight is not possible: - LAND AS SOON AS POSSIBLE.
If continued flight is possible: - LAND AS SOON AS PRACTICABLE
DUAL ENGINE FAILURE
AUTOROTATE
ECU/DEC/EDECU LOW SIDE FAILURE
- ESTABLISH SINGLE-ENGINE AIRSPEED.
If partial powered flight cannot be maintained:
② ENG POWER CONT lever (low % TRQ/TGT TEMP engine) - LOCKOUT. Maintain % TRQ approximately 10% below other engine. - LAND AS SOON AS PRACTICABLE
ECU/DEC/EDECU HIGH SIDE FAILURE
- ESTABLISH SINGLE-ENGINE AIRSPEED.
② ENG POWER CONT lever (high % TRQ/TGT TEMP engine) - Retard. Maintain % TRQ approximately 10% below other engine. - 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 procedure
%RPM INCREASING/DECREASING (OSCILLATION)
- ESTABLISH SINGLE-ENGINE AIRSPEED.
② Slowly retard the ENG POWER CONT lever on the suspected engine.
If the oscillation stops and partial power flight cannot be maintained:
③ Place that engine in LOCKOUT and manually control the power.
4 LAND AS SOON AS PRACTICABLE.
If the oscillation continues:
⑤ Place the ENG POWER CONT lever back to FLY and retard the ENG POWER CONT lever of the other engine.
If partial power flight cannot be maintained:
⑥ Place the engine in LOCKOUT, manually control the power. - LAND AS SOON AS PRACTICABLE
% TRQ SPLIT BETWEEN ENGINES 1 AND 2
- ESTABLISH SINGLE-ENGINE AIRSPEED.
② If TGT TEMP of one engine exceeds the limiter ( 700 850°C, 701C 701D/CC 875°C with low power engine above 50% TRQ or 901°C with low power engine below 50% TRQ), retard ENG POWER CONT lever on that engine to reduce TGT TEMP. Retard the ENG POWER CONT lever to maintain torque of the manually controlled engine at approximately 10% below the other engine.
③ If TGT TEMP limit on either engine is not exceeded, slowly retard ENG POWER CONT lever on high% TRQ engine and observe % TRQ of low power engine.
④ If % TRQ of low power engine increases, ENG POWER CONT lever on high power engine - Retard to maintain % TRQ approximately 10% below other engine (the high power engine has been identified as a high side failure).
⑤ If % TRQ of low power engine does not increase, or % RPM R decreases, ENG POWER CONT lever -Return high power engine to FLY (the low power engine has been identified as a low side failure).
⑥ If additional power is required, low power ENG POWER CONT lever, momentarily move to LOCKOUT and adjust to set % TRQ approximately 10% below other engine.
7. LAND AS SOON AS PRACTICABLE
ENGINE COMPRESSOR STALL
- ESTABLISH SINGLE-ENGINE AIRSPEED.
If condition persists:
② ENG POWER CONT lever (affected engine)-Retard (TGT TEMP should decrease).
③ ENG POWER CONT lever (affected engine)-FLY.
If stall condition recurs:
④ EMER ENG SHUTDOWN (affected engine).
⑤ Refer to single-engine failure emergency procedure
1 OIL FLTR BYPASS OR #2 OIL FLTR BYPASS CAUTION APPEARS
- ESTABLISH SINGLE-ENGINE AIRSPEED.
② ENG POWER CONT lever (affected engine) - Retard (to reduce pressure). - LAND AS SOON AS PRACTICABLE
CHIP #1 ENGINE OR #2 ENGINE, #1 ENGINE OIL PRESS OR #2 ENGINE OIL PRESS, #1 ENGINE OIL TEMP OR #2 ENGINE OIL TEMP CAUTION APPEARS
- ESTABLISH SINGLE-ENGINE AIRSPEED.
② ENG POWER CONT lever (affected engine) - Retard (to reduce torque).
If oil pressure is below minimum limits or if oil temperature remains above maximum limits:
③ EMER ENG SHUTDOWN (affected engine).
④ Refer to single-engine failure emergency procedure
ENGINE HIGH-SPEED SHAFT FAILURE
- ESTABLISH SINGLE-ENGINE AIRSPEED.
② EMER ENG SHUTDOWN (affected engine). Do not attempt to restart.
③ Refer to single-engine failure emergency procedure.
LIGHTNING STRIKE
- ESTABLISH SINGLE-ENGINE AIRSPEED.
② ENG POWER CONT levers - Adjust as required to control % RPM.
③ LAND AS SOON AS POSSIBLE
LOSS OF TAIL ROTOR THRUST IN CRUISE FLIGHT
- AUTOROTATE - Maintain airspeed at or above 80 KIAS.
② ENG POWER CONT levers - OFF (during deceleration when intended point of landing is assured).
LOSS OF TAIL ROTOR THRUST OR TAIL ROTOR QUADRANT CAUTION APPEARS WITH LOSS OF CONTROL AT LOW AIRSPEED/HOVER (RIGHT ROTATION)
- Collective - Reduce.
② ENG POWER CONT levers - OFF (5 to 10 feet above touchdown)