EPs VEMD Flashcards by Mary Han

HYD

HYD
Failure Indication: Warning of the pressure drop is also confirmed by sounding of the horn in the cabin.
-In Flight:
1) Reduce collective pitch & adjust airspeed to 40-60kts
2) Cut-off hydraulics using collective lever switch
*Horn will stop sounding Nr warning still active
3) Shallow approach run-on landing
-In Hover: Land normally and shut down engine

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BAT

BAT
Failure Indication: Battery isolated from D.C. network or no longer charging
Procedure:
1) Check the push-button (ON)
2) Keep a watch on voltage
3) Continue flight, according to circumstances

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MGB.P

MGB.P
Failure: Main gearbox oil minimum pressure.
Procedure:
1) Reduce Power
2) Land as soon as possible
Note: The MGB has successfully passed a bench test consisting in running the gearbox for 45 min. with 0 oil pressure @ pwr corresponding to minimum power in level flight.

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HORN

HORN
Failure Indication: Horn not set
Procedure:
1) Set the horn by actuating the push-button situated on the control pedestal panel
*Note without the HORN you will have no audio indication of low Nr or failure of the hydraulic system

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MGB.T

MGB.T
Failure Indication: Main gearbox oil max. temperature >115°C
Procedure:
1) Test the warning caution advisory panel checking the MGB.P light.
* If the MGB.P light does not illuminate, proceed as for MGB oil pressure at 0.
* If the MGB.P light illuminates, land and check the M.G.B. oil level. If the oil level is normal, fly to the nearest base.

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FUEL

FUEL
Failure Indication: Fuel quantity less than 15.8 gal.
Procedure:
1) Avoid large attitude changes
Note: Remaining usable fuel allows approximately 18 minutes level flight at maximum continuous power.

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ENG P

ENG P
Failure Indication: Engine oil pressure alarm.
Procedure:
1) Reduce Power
2) Check ENG oil pressure indicator
* If pressure is low or zero read Tq gauge:
- Very low autorotate shut-down engine
- Normal LAND IMMEDIATELY
* If both pressure and Tq readings are correct, LAND AS SOON AS POSSIBLE

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PITOT

PITOT
Failure Indication: Pitot heating system not energized
Procedure:
1) Check the push-button (ON)
2) Monitor airspeed indicator

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GEN

GEN
Failure Indication: D.C. power supply failure *; Overvoltage detected.
Procedure:
1) Test the D.C. voltage.
2) Check the position of the GEN push-button
3) Attempt to reset: Shed least essential consumers; continue flight, according to circumstances, watch voltage 22 min.
Max. flt time on BAT only Day:50min.;Night:20min.**
4) LAND AS SOON AS PRACTICABLE
* Remote locations check fuses after landing. Use replacements
** Functions that MUST be ON when flying on the battery only:
Day=BAT, fuel pumps, radio ; Night = Day plus lights, horizon

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DOORS

DOORS
Failure Indication: One or both baggage hold side doors unlocked
Procedure:
1) Reduce airspeed (120 kt maximum)
2) Check visually that doors are closed
3) If one or both doors are open, or if checking is impossible
4) LAND IF POSSIBLE, or continue flight at reduced speed

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ENG CHIP

ENG CHIP
Failure Indication: Metal particles in engine oil system
Procedure:
1) LAND AS SOON AS POSSIBLE
* It is prohibited to take off again as long as the checks scheduled in maintenance manual have not been performed

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FUEL P

FUEL P
Failure Indication: Fuel pressure lower than .2 bar on either or both pumps
Procedure:
1) Check fuel pressure gauge
- If pressure is normal, only one pump is faulty : flight may be continued
- If pressure is zero, both pumps are faulty : flight may be continued at an altitude lower than 5000 ft

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F FILTER

F FILTER
Failure: Fuel filter clogging
Procedure:
1) Reduce power
- If light goes out, continue flight at reduced power
- If light remains on, LAND AS SOON AS POSSIBLE

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LAND AS SOON AS POSSIBLE

Land at the nearest site at which a safe landing can be made.

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CHIP MGB

CHIP MGB
Failure Indication: Metal particles detected in main gearbox
Procedure:
1) Reduce power
2) Monitor MGB P and MGB T lights.
- Should either or both lights illuminate refer to those procedures.

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LAND AS SOON AS PRACTICABLE

Extended flight is not recommended. The landing site and duration of the flight are at the discretion of the pilot.

CHIP TGB

CHIP TGB
Failure Indication: Metal particles detected in TGB.
Procedure:
1) Continue flight avoiding prolonged hovering

LAND IMMEDIATELY

Or ditch. Self explanatory

GOV failed LOW

GOV failed LOW
Failure Indication: Looks like an engine failure except after a few seconds Ng stabilizes at a low rpm value (less than 70%)
Procedure:
1) Est. Auto airspeed (65 kts) then advance fuel flow control into emergency sector (fwd). Ng and T4 should rise.
2) Control engine speed to 70% Ng
3) If necessary, increase collective to bring rotor speed to 350
4) Increase fuel flow until rotor is approx. 380 rpm
5) Trim collective and fuel flow control to hold level flight at this rotor speed

GOV failed HIGH

GOV failed HIGH
Failure Indication: Ng, T4, Nr and Tq increases
Procedure:
1) Do not reduce collective
2) Reduce fuel flow until rotor is in the center of the green arc
3) Continue flight with governor out of action. Any reduction in collective will result in an increase in Nr which must be countered with fuel flow control position.
*Approach and landing should be shallow at 65 kts holding Nr in upper portion of green arc using the FFC. Reduce forward speed don’t touch FFC Nr will drop when collective is raised for touchdown. Reduce FFC first after touchdown before collective.

GOV surging

GOV surging
Failure Indication: Surging is evidence by hunting of the RPM, Tq, and T4 indications and jerks in the yaw axis.
Procedure:
1) Change the collective pitch setting.
- If surging persists while fuel pressure and engine oil pressure are correct, reduce fuel flow slightly to leave the governed range. If surging still persists, LAND AS SOON AS POSSIBLE.

ENGINE FIRE during START

ENGINE FIRE during START
Failure Indication: During Start flames are visible or illumination of the FIRE warning light
Procedure during START:
1) Close emergency fuel shut-off lever and apply rotor brake
2) Switch off booster pumps
3) Crank engine for 10 seconds then switch off battery
4) Use the extinguisher to fight the fire

ENGINE FIRE FLIGHT

ENGINE FIRE FLIGHT
Failure: FIRE light illuminated
Procedure:
1) Enter autorotation
2) Close the fuel shut-off lever to shut down engine
3) Switch off booster pumps & generator
4) Switch off the electrical master (RED button) only if there is a smell of burning in the cockpit

SMOKE IN CABIN

known source

SMOKE IN THE CABIN known source
Failure: Smoke in the cockpit
Procedure if source is identified:
1) Shut off corresponding system
2) If needed use extinguisher
3) Open windows and front vent

SMOKE IN THE CABIN | unknown source

SMOKE IN THE CABIN unknown source Failure Indication: Smoke in the cockpit Procedure if source is not identified: 1) Shut off heater and demister; if it doesn’t clear smell then 2) Depress MASTER switch (Red button) 3) When smell clears, set all switches OFF. 4) Reset battery switch to ON 5) Reset the MASTER switch (red button) 6) Switch on GEN, check voltage and AMPs 7) If all is normal, switch on equipment one by one until malfunction is identified.

TAIL ROTOR DRIVE FAILURE | in hover

TAIL ROTOR DRIVE FAILURE in hover Failure: Hovering aircraft yaws left. Procedure Hover or Low Speed: IGE: 1) Bring aircraft to the ground by reducing collective before the yaw rate is too high. OGE: 1) Reduce collective moderately, to reduce yaw torque, and simultaneously start to pick up speed. Landing via Papillon trained method or AUTOROTATE.

TAIL ROTOR DRIVE FAILURE | via PAPILLON

TAIL ROTOR DRIVE FAILURE via PAPILLON Failure Indication: Yaw to the left. 4 Phase maneuver: 1) Recognition (stuck pedal or complete failure) 2) Approach at 65 kts very shallow this phase ends at 2 feet 3) Stabilization. Using airspeed to align nose with runway. If nose is stuck to the right SLOW DOWN slightly. If stuck to the left SPEED UP slightly. 4) Landing. Once nose is stable and aligned with runway slight forward cyclic to achieve landing. 5) On the ground use collective to control nose. Up nose left down nose right.

TAIL ROTOR CONTROL FAILURE | before servo

TAIL ROTOR CONTROL FAILURE Failure Indication: Breakage before tail rotor servo Procedure: 1) Set airspeed to 65 – 70 kts 2) Press HYD TEST (max 5 sec) this may better align the nose of the aircraft assuming a large pedal input was made just prior to failure (most preferable w stuck left or neutral) 3) Shallow approach to a run-on landing. *Control nose using airspeed. Stuck to right slow down; stuck to left speed up.

NO FUEL PRESSURE INDICATION

NO FUEL PRESSURE INDICATION Failure Indication: No fuel pressure on gauge. No illumination of FUEL P light Procedure: 1) If the warning light for FUEL P is working after testing panel then the gauge has failed. 2) Flight may be continued

LOW ENG OIL PRESSURE

LOW ENG OIL PRESSURE Failure Indication: Low engine oil pressure Procedure: 1) Test warning panel and check ENG P light - Light does not illuminate when tested - Tq much too low, shut down engine and autorotate - Light illuminates when tested - Tq much too low, LAND AS SOON AS POSSIBLE - Tq correct, LAND AS SOON AS PRACTICABLE. Monitor ENG P light

ENGINE OIL TEMP MAX

``` ENGINE OIL TEMP MAX Failure Indication: At low speed or in hover Procedure: 1) LAND if possible - Stop the engine - Check the cooler fan operates 2) If landing impossible - Increase speed and reduce power - Fly at approx. 80 kts. Temperature should decrease rapidly. If temp. doesn’t reduce LAND AS POSSIBLE ```

Ng, Tq, T4 or Nr Failure

``` Ng, Tq, T4 or Nr Failure Failure: Gauge failures Procedure: In the event of an indicator failure, do not exceed maximum authorized torque value, and keep the T4 temperature below the following limit: Below 15°C OAT = T4 730°C Above 15°C OAT = T4 750°C Tq failure keep NG below limits T4 failure keep comply with NG limits ```

AURAL WARNING

AURAL WARNING Failure: Horn sounding - Horn sounds between Nr 250-360 (continuous sound) - Above 410 Nr (intermittent sound) - Hydraulics pressure drops below 30 bar - Also sounds when testing caution panel * Horn is operable only when switch is activated.