The term LAND/DITCH IMMEDIATELY is defined as:
executing a landing or ditching without delay due to the seriousness of the malfunction. The primary consideration is to assure the survival of occupants of the aircraft.
WARNING
The potential loss of the airframe after aircrew egress is not sufficient cause to continue flight.
The term LAND AS SOON AS POSSIBLE is defined as:
executing a landing at the first site at which a safe landing can be made. The primary consideration is the urgency of the emergency.
The term LAND AS SOON AS PRACTICABLE means:
extended flight is not recommended. The landing site and duration of flight is at the discretion of the Pilot-in-Command.
The term ABORT MISSION means
that the aircraft shall not proceed on its assigned mission and should return to its desired recovery base.
When speaking in terms of circuit breakers, CHECK means:
Note status of affected circuit breaker (out or in). No further action necessary.
When speaking in terms of circuit breakers, CHECK/RESET means:
Ensure that affected circuit breaker is in. If affected circuit breaker is popped, attempt to reset circuit breaker once.
When speaking in terms of circuit breakers, CYCLE means:
Pull affected circuit breaker, wait 15 seconds, and reset circuit breaker.
When speaking in terms of circuit breakers, PULL means:
Manually open (pull) affected circuit breaker.
TWO or more of the following Symptoms:
MGB FAILURE IMMINENT =Main Gearbox Section= Corrective Action: 1. 200-FOOT CHECKLIST - COMPLETE 2. LAND/DITCH IMMEDIATELY. WARNING The potential loss of the airframe after aircrew egress is not sufficient cause to continue flight.
Any ONE of the following Symptoms:
MGB MALFUNCTION
=Main Gearbox Section=
Corrective Action:
No memory items
=NOTE=
In order to determine whether or not power requirements have increased for a MGB problem, the pilot should note and verbalize the flight regime, airspeed, and current FLI power setting at the onset of the malfunction to establish a baseline for later comparison.
=NOTE=
Single malfunctions while serous do not indicate that a MGB failure is imminent. Flight without MGB oil lubrication should be sustainable for approximately 25 minutes.
Symptoms:
MGB PUMP MAIN FAILURE =Main Gearbox Section= Corrective Action: No memory items =NOTE= MGB lubrication will continue to be provided by the auxiliary pump. The auxiliary pump operates at a lower pressure and bypasses the oil cooler.
Symptom:
1. MGB PMP AUX caution light illuminated
MGB PUMP AUXILIARY FAILURE =Main Gearbox Section= Corrective Action: No memory items =NOTE= During normal operation, the auxiliary pump of the MGB lubricating system is not used for lubrication. A failure will indicate a loss of redundancy in case of main pump failure.
Symptoms:
1. OIL TEMP arming light illuminated AND increase in XMSN OIL temperature above 120 degrees C on the VEMD.
NOTE: The OIL TEMP warning light is shared by temperature switches from the MGB and both engines. Pilots shall reference the VEMD Vehicle Page to determine which system is at fault and follow the appropriate emergency procedure.
MGB OVERHEAT
=Main Gearbox Section=
Corrective Action:
No memory items
=NOTES=
1) MGB overheat may not be evident at airspeeds above 120 KIAS
2) Operations at speeds below 120 KIAS may not provide sufficient airflow through the oil cooler for effective cooling.
3) Minimize hovering and ground operations due to loss of cooling airflow.
Symptoms:
1. XMSN OIL pressure on VEMD greater than 80 psi.
MGB HIGH-PRESSURE
=Main Gearbox Section=
Corrective Action:
No memory items
Any ONE of the following symptoms:
MGB INDICATING SYSTEM FAILURE
=Main Gearbox Section=
Corrective Action:
No memory items
(Hover Flight and Transition Flight between 0 and 80 KIAS)
Symptom:
1. FLI exceeds 10.0.
Possible Symptoms:
2. MGB QT capture on the Engine Exceedance page.
MGB OVERTORQUE =Main Gearbox Section= Corrective Action: 1. REDUCE TORQUE TO WITHIN LIMITS, WHEN ABLE. (continued non-memory)
(Cruise Flight)
Symptom:
1. FLI exceeds 8.8.
Possible Symptoms:
2. MGB QT capture on the Engine Exceedance page.
MGB OVERTORQUE =Main Gearbox Section= Corrective Action: 1. REDUCE TORQUE TO WITHIN LIMITS, WHEN ABLE. (continued non-memory)
Symptom:
1. MGB FIRE warning light illuminated
Possible Symptoms:
2. Illumination of MGB related warning and caution lights
WARNING:
Due to the potential for fire damage to the flight control servos and/or the associated hydraulic lines, a fire in this compartment may result in complete loss of aircraft control.
MGB FIRE =Fires Section= Corrective Action: 1. ATTEMPT TO CONFIRM PRESENCE OF FIRE (alert crew). 2. 200-FOOT CHECKLIST - COMPLETE
If fire confirmed:
3. LAND/DITCH IMMEDIATELY
=WARNING=
The potential loss of the airframe is not sufficient cause to continue flight.
If fire NOT confirmed:
3. LAND AS SOON AS POSSIBLE.
=WARNING=
a) Illumination of the MGB FIRE warning light may indicate a fire, overheat condition, or a short circuit in the detection system.
b) Since no fire extinguishing system is provided for the MGB compartment, immediate action should be taken to confirm the presence of fire.
Symptoms:
ENGINE COMPARTMENT FIRE INFLIGHT
=Fires Section=
Corrective Action:
1. ATTEMPT TO CONFIRM THE PRESENCE OF FIRE (alert crew).
2. SINGLE ENGINE FLIGHT PROFILE- ESTABLISH.
If fire confirmed:
If fire still persists:
9. LAND/DITCH IMMEDIATELY.
If fire no longer evident:
9. LAND AS SOON AS POSSIBLE.
If fire not confirmed:
3. LAND AS SOON AS PRACTICABLE (non memory)
While on deck:
Symptoms:
1. Engine FIRE warning light illuminated.
2. Possible hand or voice signals from ground crew.
3 Red warning light illuminated on corresponding EFSL.
ENGINE COMPARTMENT FIRE ONDECK =Fires Section= Corrective Action: 1. ATTEMPT TO CONFIRM PRESENCE OF FIRE (alert crew). 2. FCS - BOTH OFF. 3. EFSL - BOTH OFF. 4. BOOST PUMPS - ALL OFF.
If fire confirmed:
Symptoms:
INTERNAL FIRE (CABIN, ELECTRICAL AND/OR AVIONICS)
=Fires Section=
Corrective Action:
1. DESIGNATE CREWMEMBER TO FIGHT FIRE.
2. AFFECTED EQUIPMENT - OFF.
3. CIRCUIT BREAKERS - PULL (for affected circuits).
Note:
An avionics fire will be fought by disconnecting enough camlocks on the avionics rack pannel to allow access for the fire extinguisher nozzle. Short blasts are advised to preserve extinguishing agent in case of reflash. Close rack panel and monitor for reflash.
If electrical or avionics fire persists:
8. EMERGENCY ELECTRICAL CUTOFF - OFF.
If electrical or avionics fire persists:
9. LAND/DITCH IMMEDIATELY.
=WARNING=
The potential loss of the airframe after aircrew egress is not sufficient cause to continue flight.
If fire goes out:
10. LAND AS SOON AS POSSIBLE.
SMOKE AND FUME ELIMINATION
(Think cross/genuflect- ^v>
Symptoms:
1. TOT rises rapidly after FCS has been placed in the OFF position
ENGINE POST-SHUTDOWN FIRE =Fires Section= Corrective Action: 1. FADEC CONTROL SWITCH - CHECK OFF. 2. BOOST PUMPS - CHECK OFF. 3. EFSL (affected engine) - OFF.
If high TOT still evident after 10 seconds:
4. CRANK BUTTON - DEPRESS UNTIL TOT DECREASES.
If TOT continues to rise or does not decrease:
Symptom:
1. Fire detector FAIL light illuminated
FIRE DETECTOR FAILURE
=Fires Section=
Corrective Action:
Non-memory
=NOTE=
An open circuit in the fire detection system will result in FAIL light illumination.