407 EPs Flashcards
Land As Soon As Possible
Land without delay at the nearest suitable area (i.e. open field) at which a safe approach and landing is reasonably assured.
Land As Soon As Practicle
The landing site and duration of flight are at the discretion of the pilot. Extended flight beyond the nearest approved landing area is not recommended.
Engine Failure Hovering
INDICATIONS:
- Left yaw.
- ENGINE OUT and RPM warning lights illuminated.
- Engine instruments indicate power loss.
- Engine out audio activated when NG below 55%.
- NR decreasing with RPM warning light and audio on when NR drops below 95%.
Procedure:
- Maintain heading and attitude control.
- Collective — Adjust to control NR and rate of descent. Increase prior to ground contact to cushion landing.
NOTE
Amplitude of collective movement is a function of height above ground. Any forward airspeed will aid in ability to cushion landing.
- Deleted (old FM - Land)
- Complete shutdown
Engine Failure In Flight
Indications:
- Left yaw.
- ENGINE OUT and RPM warning lights illuminated.
- Engine instruments indicate power loss.
- Engine out audio activated when NG drops below 55%.
- NR decreasing with RPM warning light and audio on when NR drops below 95%.
Procedure:
- Maintain heading and attitude control.
- Collective — Adjust to maintain 85 to 107% NR.
NOTE
Maintaining NR at high end of operating range will provide max energy to accomplish landing, but will cause an increased rate of descent.
- Cyclic — Adjust to obtain desired autorotative A/S.
NOTE
Maximum A/S for autorotation - 100 KIAS.
Min rate of descent - 55 KIAS.
Max glide - 80 KIAS.
- Attempt engine restart if time and altitude permit.
Caution
IF CAUSE OF FAILURE IS OBVIOUSLY MECHANICAL, AS EVIDENCED BY ABNORMAL METALLIC OR GRINDING SOUNDS, DO NOT ATTEMPT A RESTART.
- FUEL VALVE switch — OFF.
- At low altitude:
- Throttle — Closed.
- Flare to lose airspeed.
- Apply collective as flare effect decreases to further reduce forward speed and cushion landing. Upon ground contact, collective shall be reduced smoothly while maintaining cyclic in neutral or centered position.
- Complete helicopter shutdown.
Restart Automatic Mode
No restart fault or FADEC manual lights illuminated.
Procedure:
- Collective — Adjust to maintain 85 to 107% NR.
- AIRSPEED — Adjust as desired.
NOTE
Minimum rate of descent airspeed of 55 KIAS and minimum NR will allow pilot more time for air restart.
- FUEL VALVE switch — ON.
- Throttle — Cutoff.
- START switch — Hold to start position (start will latch after throttle is placed to idle).
- NG — Between 12 and 50%.
- Throttle — Idle.
- MGT — Monitor.
- Engine oil pressure — Check.
- Throttle — Advance smoothly to FLY detent position.
If restart is unsuccessful, abort start and secure engine as follows:
- Throttle - Cutoff
- FUEL VALVE switch — OFF.
- Accomplish autorotative descent and landing.
Restart Manual Mode
No restart fault or FADEC manual lights illuminated.
Procedure:
- Collective — Adjust to maintain 85 to 107% NR.
- AIRSPEED — Adjust as desired.
NOTE
Minimum rate of descent airspeed of 55 KIAS and minimum NR will allow pilot more time for air restart.
- Throttle — Closed.
- FADEC MODE switch — MAN.
- FUEL VALVE switch — ON.
- START switch — Hold to start position (starter will not latch).
- NG — 12%.
- Throttle — Slowly advance out of cutoff and stop advancing throttle at light off.
- MGT — Allow to peak.
- Throttle — Increase fuel flow by modulating throttle to maintain MGT within limits.
- START switch — Release at 50% NG.
- Engine oil pressure — Check.
- Throttle — Advance smoothly and modulate to 100% NP.
If restart is unsuccessful, abort start and secure engine as follows:
- Throttle — Closed.
- FUEL VALVE switch — OFF.
- Accomplish autorotative and landing.
Engine Underspeed
No caution/warning/advisory lights illuminated.
INDICATIONS:
- Decrease in NG.
- Subsequent decrease in NP.
- Possible decrease in NR.
- Decrease in TRQ.
PROCEDURE:
- Collective — Adjust to maintain 85 to 107% NR.
- Throttle — Confirm in FLY detent position.
- Throttle — Position throttle to the approximate bezel position that coincides with the gauge indicated NG.
- FADEC MODE switch — MAN.
- NR — Maintain 95 to 100% with throttle and collective.
- Land ASAPr.
Engine Overspeed
No caution/warning/advisory lights illuminated.
Indications:
- Increase in NR, NP, NG, and TRQ
Procedure:
- Throttle — Retard.
- NG or NP — Attempt to stabilize with throttle and collective.
- FADEC MODE switch — MAN.
- NR — Maintain 95 to 100% with throttle and collective.
Caution
IF UNABLE TO MAINTAIN NR, NP, NG, OR MGT, PREPARE FOR A POWER OFF LANDING BY LOWERING COLLECTIVE AND SHUTTING DOWN ENGINE
Compressor Stall
INDICATIONS:
- Engine pops.
- High or erratic MGT.
- Decreasing or erratic NG or NP.
- TRQ oscillations.
• PROCEDURE
- Collective — Reduce power, maintain slow cruise flight.
- MGT and NG — Check for normal indications.
- ENG ANTI ICE switch — ON.
- PART SEP switch (if installed) — ON.
- HEATER switch (if installed) — ON.
NOTE
Severity of stalls will dictate if engine should be shut down and treated as an engine failure. Violent stalls can cause damage to engine and drive system components, and must be handled as an emergency condition. Stalls of a less severe nature (one or two low intensity pops) may permit continued operation of engine at a reduced power level, avoiding condition that resulted in compressor stall.
If pilot elects to continue flight:
- Collective — Increase slowly to achieve desired power level.
- MGT and NG — Monitor for normal response.
- Land ASAPr.
If pilot elects to shutdown engine:
- Enter Auto
- Throttle — Closed.
- FUEL VALVE switch — OFF.
- Collective — Adjust to maintain 85 to 107% NR.
- Cyclic — Adjust to maintain desired airspeed.
- Prepare for power-off landing
Engine Hot-start Shutdown
Indications:
- Excessive MGT.
- Visible smoke or fire.
PROCEDURE:
- Throttle — Closed.
- FUEL VALVE switch — OFF.
NOTE
Starter will remain engaged until MGT decreases to 150°C and then automatically disengage. Starter may be manually engaged by holding STARTER switch forward.
- STARTER switch — Ensure starter is motoring engine until MGT stabilizes at normal temperature.
- Shut down helicopter.
Engine Oil Pressure Low, High, or Fluctuating
Below minimum
Monitor pressure and temp - Land ASAPo
Above maximum or fluctuating abnormally
Monitor pressure and temp - Land ASAPr
Engine Oil Temp High
Land ASAPr
MR Driveshaft Failure
Warning
FAILURE OF MAIN DRIVESHAFT TO TRANSMISSION WILL RESULT IN COMPLETE LOSS OF POWER TO MAIN ROTOR. ALTHOUGH COCKPIT INDICATIONS FOR A DRIVESHAFT FAILURE ARE SIMILAR TO AN ENGINE OVERSPEED, IT IS IMPERATIVE THAT AUTOROTATIVE FLIGHT PROCEDURES BE ESTABLISHED IMMEDIATELY. FAILURE TO REACT IMMEDIATELY TO LOW RPM AUDIO, RPM LIGHT AND NP/NR TACHOMETER CAN RESULT IN LOSS OF CONTROL.
INDICATIONS:
- Left yaw.
- Rapid decrease in NR.
- Rapid increase in NP.
- LOW RPM audio horn.
- Illumination of RPM light.
- Possible increase in noise level to overspeeding engine and driveshaft breakage.
NOTE
Engine overspeed trip system will activate at 118.5% NP causing fuel flow to go to minimum. After initial overspeed, FADEC will adjust fuel flow to maintain engine at 100% NP.
Procedure:
- Maintain heading and attitude control.
- Collective — Adjust to maintain 85 to 107% NR.
Note
Minimum rate of descent - 55 KIAS
Max glide distance airspeed is 80 KIAS.
- Cyclic — Adjust to desired autorotative airspeed.
Note
To maintain tail rotor effectiveness do not shutdown engine.
- Complete autorotative landing.
- Complete helicopter shutdown
FADEC Failure
Note
Takeoff power may not be available in MAN mode. Max continuous power will be available for all ambient conditions.
INDICATIONS:
- FADEC fail audio activated.
- FADEC FAIL warning light illuminated.
- FADEC MANUAL caution light illuminated.
- Deleted.
- FADEC MODE switch MAN light illuminated.
PROCEDURE:
WARNING
DEPENDENT ON FLIGHT PROFILE (T/O, CLIMB, CRUISE, OR DESCENT) AND POWER SETTING AT TIME OF FAILURE, THE TRANSITION TO MANUAL MODE MAY RESULT IN AN NR/NP OVERSPEED OR UNDERSPEED WITHIN 2 TO 7 SECONDS AFTER THE FADEC FAIL WARNING, REQUIRING POSITIVE MOVEMENTS OF COLLECTIVE AND THROTTLE TO CONTROL NR.
- Throttle — If time permits, match throttle bezel position to NG indication.
- NR/NP — Maintain 95 to 100% with collective and throttle.
- FADEC MODE switch — Depress one time, muting FADEC fail audio. AUTO RELIGHT advisory light illuminates.
NOTE
Depressing FADEC MODE switch one time, will only mute FADEC fail audio and activate ignition. This step should not be accomplished until pilot is firmly established in MAN control.
- Land as soon as practical.
- Normal shutdown if possible.
Engine Fire on Ground
Indications:
- Smoke, Fumes, Fire
Procedure:
- Throttle — Closed.
- FUEL VALVE switch — OFF.
- GEN switch — OFF.
- BATT switch — OFF.
- Rotor brake (if installed) — Engage.
- Exit helicopter.
Engine Fire During Flight
Indications:
- Smoke, Fumes, Fire
Procedure:
- In-flight — Immediately enter autorotation.
- Throttle — Closed.
- FUEL VALVE switch — OFF.
- If time permits, FUEL BOOST/XFR circuit breaker switches — OFF.
- Execute autorotative descent and landing.
- BATT switch — OFF.