EP Flashcards
(35 cards)
ENGINE MALFUNCTION IN FLIGHT
*1. Control Nr.
Warning
Flying with greater than 110% torque with one engine inoperative may result in unrecoverable decay og Nr in the event of a dual engine failure.
- CONTGCY PWR switch - ON.
- Single engine conditions - Establish.
- ENG ANTI-ICE switches - as required.
Warning
With engine anti-ice on, up to 18% torque available is lost. Torque may be reduced as much as 49% with improperly operating engine inlet anti-ice valves.
- External cargo/stores/fuel - Jettison/dump, as required.
- Identify malfunction.
ABORT START
To abort start:
*1. PCL - OFF.
*2. ENGINE IGNITION switch - OFF.
If engine oil pressure is indicated.
*3. Starter - Engage.
4. Starter - disengage after 30 seconds and TGT below 540 C.
ENGINE MALFUNCTION DURING HOVER/TAKEOFF
*1. Control Nr.
*2. CONTGCY PWR switch - ON.
If a suitable landing site exists or unable to transition to forward flight:
*3. Set level attitude, eliminate drift, cushion landing.
If able to transition to forward flight
*4. Engine Malfunction in Flight emergency procedure - Perform.
(#1/#2) FUEL FLTR BYPASS OR (#1/#2) FUEL PRESS CAUTION
*1. Fuel selector lever (affected engine) - XFD (DIR if currently in XFD).
2. Land as soon as practicable.
If affected engine indications are abnormale:
3. Engine Malfunction in Flight Procedure - Perform.
1 and #2 FUEL FLTR BYPASS OR #1 AND #2 FUEL PRESS CAUTION
*1. Land as soon as possible.
*APU Emergency Start procedure - Perform.
Warning
Be prepared for dual-engine failure. Recommended airspeed is 80 KIAS to minimize Nr droop should dual-engine failure occur.
Note
Consideration should be given to performing applicable steps of the Immediate Landing/Ditching emergency procedure.
COMPRESSOR STALL
*1. Engine Malfunction in Flight emergency procedure - Perform.
2* PCL (malfunctioning engine) - IDLE.
If TGT decreases an stall clears:
3. PCL - slowly advance to FLY.
If stall remains cleared:
4. Land as soon as practicable. Avoid rapid collective movement.
If TGT continues to rise, Ng decreases below normal idle speed, or any other malfunction is indicated:
5. Engine Shutdown in Flight emergency procedure - perform.
ENGINE HIGH-SPEED SHAFT FAILURE
(#1/#2) DRIVESHAFT FAIL
CAUTION
Following a high-speed shaft failure, the engine will overspeed, the Np overspeed system will flame out the engine, and the auto-ignition system will activate the relight feature. The engine Np governor will eventually bring Np down toward 100%. The engine must be manually shut down to prevent further damage.
*1. Engine Malfunction in Flight Emergency procedure - Perform.
*2 PCL (malfunctioning engine) OFF.
3. Land as soon as practicable.
Consideration should be given to performing the following:
4. Engine Shutdown in Flight emergency procedure.
5. Single-Engine Landing emergency procedure.
ENGINE HIGH-SIDE FAILURE IN FLIGHT
(#1/#2) ENG SPEED HI
*1. Engine Malfunction in Flight Emergency procedure - Perform.
NOTE
Ng does not pass through the e
EDECU and is a highly reliable signal.
Torque signal may be erratic or drop off for high side conditions driven be EDECU failure.
- PCL (malfunctioning engine) - Retard to set:
a. Torque 10% below good engine, or
b. Matched Ng, or
c. Matched TGT.
- PCL (malfunctioning engine) - Retard to set:
- Land as soon as practicable.
ENGINE HIGH-SIDE FAILURE ON DECK
(#1/#2) ENG SPEED HI
*1. PCLs - IDLE.
ENGINE LOW-SIDE FAILURE
(#1/#2) ENG SPEED LOW
OR
ENG SPEED LOW
*1. Engine Malfunction in Flight Emergency procedure - Perform.
- PCL (malfunctioning engine) - momentarily advance to LOCKOUT, then retard to set:
a. Torque 10% below good engine, or
b. Matched Ng, or
c. Matched TGT. - Land as soon as practicable.
ENGINE TORQUE OR TGT SPIKING/FLUCTUATIONS
TORQUE SPLIT
If an engine instrument is spiking/fluctuating and inducing secondary indications in Ng, Np and/or Nr:
*1. Engine Malfunction in Flight Emergency procedure - Perform.
If fuel contamination is suspected:
*2. Land as soon as possible.
WARNING
PCL movement during engine fluctuations may precipitate an engine failure. Consider performing APU Emergency Start procedure prior to manipulating the PCL. Maintaining a low power setting when moving the PCL will minimize the Nr decay rate if the malfunctioning engine fails.
If engine electronic circuitry is suspected:
- PCL (malfunctioning engine) - Momentarily advance to LOCKOUT, then retard to set:
a. Torque 10% below good engine, or
b. Matched Ng, or
c. Matched TGT.
If fluctuations persist:
4. PCL (engine in LOCKOUT) - Retard to idle, then retur to FLY.
- Repeat Steps 3 and 4. for other engine, as required.
If an engine instrument is spiking/fluctuationg with no secondary indications:
- Land as soon as practicable.
DUAL-ENGINE FAILURE
- Autorotation - Establish.
- Immediate Landing/Ditching emergency procedure - perform.
If time and altitude permits:
*3. Engine Air Restart emergency procedure - Perform.
SINGLE-ENGINE FAILURE IN FLIGHT
(#1/#2) ENG OUT
AND
TORQUE SPLIT
*1. Engine Malfunction in Flighetform. emergency procedure - 2. Land as soon as practicable. Consideration should be given to performing the following: 3. Engine Shutdown in Flight emergency procedure. 4. Engine Air Restart procedure. emergency 5. Single-Engine Landing emergency procedure.
ENGINE AIR RESTART
*1. APU Emergency Start procedure - As required.
*2. ENGINE IGNITION switch - NORM.
*3. Fuel selector lever - DIR or XFD
*4. PCL - OFF.
*5. Starter - Engage, motor engine.
“6. PCL - IDLE (TGT 80 °C or less, if time
permits).
*7. PCL) - Advance to FLY after starter
dropout.
WARNING
If APU is unavailable, and a crossbleed start is necessary, maximum torque available will be reduced during the start sequence. Depending on operating conditions, level SOURCE
APU EMERGENCY START
*1. ECS OFF. *2. AIR SOURCE ECS/START switch APU. *3. FUEL PUMP switch - APU BOOST. *4. APU CTRL switch - ON. *5. APU GENERATOR switch - ON.
EXTERNAL ENGINE FIRE
*1. Confirm fire.
*2. Engine Malfunction in Flight
emergency procedure - Perform.
*3. PCL (affected engine) - OFF.
*4. Engine T-handle (affected engine) - Pull.
*5. FIRE EXTGH switch MAIN
(RESERVE if required or ac power is
off).
If airborne and fire continues:
*6. Land immediately.
If fire appears extinguished:
*7. Land as soon as possible.
8. Single-Engine
Landing emergency procedure - Perform.
9. Fire extinguisher
- Discharge into
engine compartment.
INTERNAL ENGINE FIRE
*1. Starter - Engage. Motor engine.
2. Portable fire extinguisher - As required
3. Starter - Secure (once TGT
decreases below 540 °C).
APU FIRE
FIRE
*1. APU T-handle - Pull.
*2. Confirm fire.
*3. FIRE EXTGH switch - RESERVE
(MAIN if required and available).
If airborne and fire continues:
*4. Land immediately.
If fire appears extinguished:
*5. Land as soon as possible.
If on ground:
*6. Fire extinguisher - As required.
7. FUEL PUMP switch - OFF.
8. APU CTRL switch - OFF
COCKPIT FIRE/CABIN FIRE
If source is known:
*1. Affected power switches and circuit breakers - OFF/Pull.
*2. Portable fire extinguisher - As required.
If fire continues or source is unknown:
*3. Cabin/doors/vents/ECS
Close/OFF, as required.
*4. Unnecessary electrical equipment and circuit breakers - OFF/Pull.
If fire continues:
*5. Land as soon as possible.
WARNING
Loss of electrical power to the engine will result in engine anti-ice activation regardless of ENG ANTI-ICE or DE-ICE MASTER switch position, reducing maximum torque available by up to 18%. With a malfunctioning inlet anti-ice valve, torque available can be reduced by as much as 49%. 6. Stabilator - Manually slew to zero. 7. NO. 1 and NO. 2 GENERATOR switches - OFF, as required. 8. BATT switch - OFF, as required. If fire is extinguished: 9. Smoke and Fumes Elimination emergency procedure - Perform. 10. Land as soon as practicable.
SMOKE AND FUMES ELEMINATION
- Airspeed - Adjust, as required.
- Doors/windows/vents - Open
- Aircraft - Yaw, as required.
HYDRAULIC SYSTEM WARNING
HYD
*1. Land immediately.
1 AND #2 HYD PUMP FAILURE
#1 HYD PUMP AND #2 HYD PUMP AND #1+#2 HYD PUMP FAIL AND BACK UP PUMP ON
- Restrict flight control movement.
* 2. Land as soon as possible.
BOOST SERVO HARDOVER
*1. PAC call -
“BOOST. BOOST. BOOST”
*2. SAS/BOOST pushbutton - Off.
1 PRIMARY SERVO OR #1 TRANSFER MODULE LEAK
AND
AND
BACK UP PUMP ON
*1. SERVO switch - 1ST OFF.
*2. Land as soon as practicable.
If the BACKUP RSVR LOW caution also
appears or the backup pump fails:
*3. Land as soon as possible.
Note
Be prepared for loss of tail
rotor control.
If the #2 PRI SERVO PRESS caution
and/or HYD warning appears:
*4. Land immediately.