Robinson 44...What to do when...Emergency Procedures (5/18/2024) Flashcards
(38 cards)
Power failure above 500 feet AGL (8 items)
- Lower collective [AVIATE]
- Establish glide (approx. 70 KIAS)
- Keep RPM between 97 and 108%
- Select landing spot [NAVIGATE]
- [COMMUNICATE]
- Attempt restart (if above 2,000 AGL)
- No restart, turn off battery and fuel
- 40 feet AGL, cyclic flare
- 8 feet AGL, forward cyclic, raise collective, cushion landing
Power failure between 8 feet and 500 feet AGL (5 items)
- Lower collective
- Keep RPM between 97 and 108%
- Maintain airspeed
- 40 feet AGL, cyclic flare
- 8 feet AGL, forward cyclic, raise collective, cushion landing
Power failure below 8 feet AGL (3 items)
- Apply right pedal
- Allow helicopter to settle
- Raise collective just before touchdown to cushion landing
Air restart procedure (4 items)
- Mixture OFF
- Throttle Closed
- Starter Engaged
- Mixture Move slowly rich while cranking
Loss of tail rotor thrust in forward flight (3 items)
- Immediately enter autorotation
- Maintain at least 70 KIAS
- Select landing site, perform autorotation landing
Loss of tail rotor thrust in hover (2 items)
- Immediately roll throttle off into overtravel spring and allow aircraft to settle
- Raise collective just before touchdown to cushion landing
If headset audio fails, what should you do?
Land as soon as practical
Engine fire during start on ground (7 items)
- Continue cranking
- If starts, run between 60-70% RPM for a short time
- Fuel mixture OFF
- Fuel valve OFF
- Battery switch OFF
- Apply rotor brake (if time permits)
- Exit helicopter
What indicates a possible loss of tail rotor thrust in forward flight?
Nose right yaw, which can’t be corrected by applying left pedal?
What if you lose tail rotor thrust and there is not a suitable landing site?
Vertical stabilizers permit limited controlled flight at low power settings and airspeeds above 70 KIAS, however prior to reducing airspeed, enter full autorotation.
Engine fire in flight (7 items)
- Enter autorotation
- Cabin heat OFF, Cabin vent ON
- Engine running: normal landing, mixture OFF, fuel valve OFF
- Engine stops: fuel valve OFF, complete autorotation
- Battery OFF
- Apply Rotor brake (if time permits)
- Exit
Electrical fire in flight (6 items)
- Battery and alternator OFF
- Open cabin vents
- Land immediately
- Mixture OFF, fuel valve OFF
- Apply Rotor brake (if time permits)
- Exit
Tachometer failure (rotor and engine tach)
- Use remaining functioning tach
- Allow governor to control RPM
- Land as soon as practical
Hydraulic system failure (4 items)
- HYD switch - verify ON
- If hydraulics not restored, HYD Switch - OFF
- Adjust airspeed and flight condition as desired for comfortable control
- Land as soon as practical, run on landing
Governor failure (4 items)
- Grip throttle firmly to override the governor
- Switch governor off
- Complete flight using manual control
- No need to suspend the flight
OIL (What does it indicate? What should you do?)
- Indicates loss of engine power or oil pressure
- Check oil pressure gauge
> If pressure is lost: land immediately, prepare for an autorotation
> If pressure is ok: land as soon as practical
ENG FIRE (What does it indicate? What should you do?)
- Indicates possible fire in engine compartment
- Follow engine fire procedure:
> Enter an autorotation
MR TEMP (What does it indicate? What should you do?)
- Indicates excessive temperature in main rotor gearbox.
> Light accompanied by any indication of a problem such as noise, vibration, or temperature rise, land immediately.
No other indication of a problem, land as soon as practical.
MR CHIP (What does it indicate? What should you do?)
- Indicates metallic particles in main rotor gearbox.
> Light accompanied by any indication of a problem such as noise, vibration, or temperature rise, land immediately.
No other indication of a problem, land as soon as practical.
TR CHIP (What does it indicate? What should you do?)
- Indicates metallic particles in tail rotor gearbox.
> Light accompanied by any indication of a problem such as noise, vibration, or temperature rise, land immediately.
No other indication of a problem, land as soon as practical.
What could occasionally activate chip lights?
Break-in fuzz
A CHIP light comes on, what steps should you take before you fly the helicopter again? (4 items)
Remove detector plug, if no metal chips or slivers are found, then:
- Clean and reinstall
- Add oil if necessary
- Hover for 30 minutes
- If light comes on again, replace gearbox
LOW FUEL (What does it indicate? What should you do?)
- Indicates approximetely three gallons of usable fuel (approximetely 10 minutes of flight time)
> Land immediately
AUX FUEL PUMP (What does it indicate? What should you do?)
- Indicates low auxiliary fuel pump pressure.
> If there is no other indication of a problem, land as soon as practical
If there is erratic engine operation, land immediately
