CH9 Emergency Procedures Flashcards
UH 60M ch9
Single Engine Failure
- ESTABLISH SINGLE ENGINE AIRSPEED.
- External cargo/stores – Jettison (if required.)
If continued flight is not possible:
3. LAND AS SOON AS POSSIBLE.
If continued flight is possible
4. LAND AS SOON AS PRACTICABLE.
Dual Engine Failure
AUTOROTATE
DEC / EDECU High Side Failure
- ESTABLISH SINGLE ENGINE AIRSPEED
- ENG POWER CONT lever (High Torque/TGT engine) – Retard. Maintain Torque approximately 10% below other engine.
- LAND AS SOON AS PRACTICABLE.
If the affected engine does not respond to EPCL 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.
NP Increasing / Decreasing (Oscillation)
- ESTABLISH SINGLE ENGINE AIRSPEED
- Slowly retard the EPCL on the suspected engine.
If the oscillation stops and partial power flight cannot be maintained:
- Place that engine in LOCKOUT and manually control the power.
- LAND AS SOON AS PRACTICABLE.
If the oscillation continues:
- Place the EPCL back to FLY and retard the EPCL of the other engine.
If partial power flight cannot be maintained:
- Place the engine in LOCKOUT and manually control the power.
- LAND AS SOON AS PRACTICABLE.
DEC / EDECU Low Side Failure
- Establish Single Engine Airspeed.
If partial powered flight cannot be maintained:
- EPCL (low torque / TGT engine) – LOCKOUT. Maintain Q approximately 10% below other engine.
- LAND AS SOON AS PRACTICABLE.
Torque Split Between Engines 1 and 2
- ESTABLISH SINGLE ENGINE AIRSPEED.
Engine Compressor Stall
- ESTABLISH SINGLE ENGINE AIRSPEED.
If condition persists:
- EPCL - RETARD
- EPCL - FLY
If stall condition recurs:
- EMER ENGINE SHUTDOWN’
- refer to single engine failure emergency procedure.
ENG 1 OIL BYPASS or ENG 2 OIL BYPASS Caution appears
- ESTABLISH SINGLE ENGINE AIRSPEED.
- EPCL - RETARD
- LAND AS SOON AS PRACTICABLE.
CHIP ENG 1 or CHIP ENG 2
ENG 1 OIL PRESS or ENG 2 OIL PRESS
ENG 1 OIL HOT OR ENG 2 OIL HOT
cautions appear
- ESTABLISH SINGLE-ENGINE AIRSPEED
- EPCL - RETARD
If oil pressure is below minimum limits or if oil temperature remains above maximum limits:
- EMER ENG SHUTDOWN
- Refer to SE failure EP
Engine High Speed Shaft Failure
- ESTABLISH SINGLE ENGINE AIRSPEED
- EMER ENG SHUTDOWN (affected engine). DO NOT ATTEMPT RESTART.
- Refer to SE Failure EP
Lightning Strike
- ESTABLISH SINGLE ENGINE AIRSPEED.
- EPCL - ADJUST (as required to control NP and NR)
- LAND AS SOON AS POSSIBLE.
Loss of Tail Rotor Thrust in Cruise Flight
- AUTOROTATE - maintain airspeed at or above 80 KIAS
2. EPCL’s – OFF (during deceleration when intended point of landing is assured.)
Loss of Tail Rotor Thrust or T/R QUAD FAIL caution appears with Loss of Control at Low Airspeed/Hover (Right Rotation).
- Collective – Reduce
2. EPCLs – OFF (5 to 10 feet above touchdown.)
T/R QUAD FAIL Caution appears in Cruise Flight
- Collective – Adjust to determine controllability (Fixed right or left.)
- LAND AS SOON AS PRACTICABLE.
Loss of Control at Low Airspeed/Hover or T/R QUAD FAIL Caution Appears (Left Rotation)
- EPCLs - RETARD to decrease NR below 100% and begin a partial power descent.
- Collective – Adjust to preserve NR
- EPCLs – OFF (5-10 feet above touchdown).
- Collective – Adjust for landing
Pedal Bind / Restriction or Drive with no accompanying Caution
- Apply pedal force to oppose the drive.
- Check other pedals for proper operation
- Tail Servo switch - Backup.
If normal control is not restored:
- Tail Servo switch - Normal
- SAS/BOOST switch - Off
If normal control is not restored:
- SAS/BOOST - ON
- Collective –Adjust to determine controllability for landing.
- LAND AS SOON AS PRACTICABLE.
T/R Servo 1 Fail Caution Appears and the BACK UP PUMP ON Advisory Does Not Appear or T/R Servo 2 ON Advisory does NOT appear
Automatic switch over did not take place.
- TAIL SERVO Switch - BACKUP.
- Backup Hyd pump switch - ON
- Land As Soon As Practicable.
MAIN XMSN PRESS Caution Appears / MAIN XMSN OIL HOT Caution Appears
LAND AS SOON AS POSSIBLE
if time permits:
Slow to 80 KIAS
EMER APU START
GENS 1 & 2 - OFF
CHIP L INPUT MDL or CHIP R INPUT MDL Caution Appears
- ESTABLISH SE AIRSPEED
- EPCL (affected engine) –IDLE
- LAND AS SOON AS POSSIBLE.
CHIP MAIN MDL SUMP CHIP L ACC MDL CHIP R ACC MDL CHIP TAIL XMSN TAIL XMSN OIL HOT CHIP INT XMSN INT XMSN OIL HOT
Cautions appear
LAND AS SOON AS POSSIBLE
MAIN TRANSMISSION FAILURE
- Collective - Adjust only enough to begin a descent with power remaining applied to the main transmission throughout the descent and landing.
- LAND AS SOON AS POSSIBLE.
