Emergency Procedures Flashcards
Land as Soon as Possible.
Land without delay at nearest suitable areas (open field) at which a safe approach and landing is reasonably assured.
Land as Soon as Practical
Landing site and duration of flight are at discretion of pilot. Extended flight beyond nearest approved landing area is not recommended.
Engine failure- Hover
• INDICATIONS:
- Left yaw.
- ENG OUT light illuminated.
- Engine instruments indicate power loss.
- Engine out audio (if installed, 206L1+ and 206L3+ IGW Upgrade) activated when N1 drops below 55%
- Nr decreasing with Low Rotor RPM light and audio on when NR drops below 90%
Collective Maintain
Pedals - Control yaw.
Collective - Increase as needed to cushion landing.
Engine failure In flight
Indications and actions?
- Left yaw.
- ENG OUT light illuminated.
- Engine instruments indicate power loss.
- Engine out audio (if installed, 206L1+ and 206L3+ IGW Upgrade) activated when N1 drops below 55%.
- NR decreasing with ROTOR LOW RPM light and audio on when NR drops below 90%.
Procedure: Enter autoroation attempt restart if able. Not able to restart
Throttle - Closed
Fuel Valve switch - Off
Accomplish automative descent and landing. Complete helicopter shutdown.
Autorotation speeds
Minimum ROD airspeed is 52 Kias
Max Glide 69 Kias.
Nominal authoritative airspeed is 61 Kias.
Engine Restart In flight
Collective - Adjust to maintain 90 to 107% NR
Airspeed adjust as desired. 52 knots and minimum NR will allow more time.
Throttle Closed
Fuel valve switch On
Starter button Press and hold.
Throttle Idle
TOT - Modulate throttle to maintain 716 to 826C
Throttle advance smoothly to full open position.
If restart is unsuccessful, abort start and secure engine as follows:
Throttle - Closed
Fuel valve switch - off
Finish auto.
Engine underspeed indications and procedures:
• INDICATIONS: 1. Decrease in N1. 2. Subsequent decrease in N2. 3. Possible decrease in NR. 4. Decrease in TORQUE• PROCEDURE: 1. Collective — Adjust as required to maintain 90 to 107% NR. 2. Throttle — Confirm full open. 3. If unable to maintain NR, establish autorotative glide. (Refer to AUTOROTATIVE DESCENT PROCEDURE, paragraph 3-3-A-3.) 4. Prepare for power-off landing.
Engine Overspeed Indications
Procedure:
INDICATIONS: 1. Increase in NR. 2. Increase in N2. 3. Increase in N1. 4. Increase in TORQUE PROCEDURE: 1. Throttle — Retard. 2. N1 or N2/NR — Attempt to stabilize with throttle and collective. 3. TOT — Monitor for normal operation. 4. NR — Maintain 90 to 107% with throttle and collective. IF UNABLE TO MAINTAIN NR, N2, N1, OR TOT, PREPARE FOR A POWER OFF LANDING BY LOWERING COLLECTIVE AND SHUTTING DOWN ENGINE.
Engine Compressor Stall/Surge
Indications:
Procedure:
INDICATIONS:
- Engine pops.
- High or erratic TOT.
- Decreasing or erratic N1 or N2.
- TORQUE oscillations. PROCEDURE:
- Collective — Reduce power, maintain slow cruise flight.
- TOT AND N1 — Check for normal indications.
- ENGINE ANTI-ICING switch — ON.
- PARTICLE SEP PRG switch (if installed) — ON.
- HEATER switch (if installed) — ON.
- Collective - Increase slowly to achieve desired power level.
- Toto and N1 Monitor for normal response.
- Land as soon as practical.
If pilot elects to shut down engine: 9. Enter auto 10. Throttle closed. 11. Fuel valve switch Off accomplish authoritative descent and landing.
Engine Hot Start/ Shutdown
Indications: Excessive TOT. Visible smoke or fire.
Throttle - Closed
Fuel Valve switch - Off.
Starter button -press to motor engine until TOT stabilizes at normal temp.
Completehelicopter shutdown.
Engine oil Pressure Low, High or Fluctuating.
Engine oil pressure below minimum — Monitor engine oil pressure and temperature. Land as soon as possible
Engine oil pressure above maximum or fluctuating abnormally — Monitor engine oil pressure and temperature. Land as soon as practical.
Engine Oil Temperature High
Land as soon as practical.
Drive shaft failure indications:
Indications:
- Left yaw.
- Rapid decrease in NR.
- Rapid increase in N2.
- ROTOR LOW RPM audio horn.
- Illumination of ROTOR LOW RPM light.
- Possible increase in noise level due to overspending engine and driveshaft breakage.
Procedure: enter auto.
To maintain tail rotor effectiveness do not shut down engine.
Engine Fire on Ground
Procedure. Throttle — Closed.
- FUEL VALVE switch — OFF.
- BAT switch — OFF.
- Rotor brake (if installed) — Engage. 5. Exit helicopter.
Engine fire during flight.
PROCEDURE:
1. In-flight — Immediately enter autorotation.
2. Throttle — Closed.
3. FUEL VALVE switch — OFF.
4. If time permits, LEFT/RIGHT FUEL BOOST circuit breakers —Pull out.
5. Accomplish autorotative descent and landing. (Refer to AUTOROTATIVE DESCENT PROCEDURE, paragraph 3-3-A-3.)
6. BAT switch — OFF.
NOTE
Do not restart engine until corrective maintenance has been performed.
Cabin smoke or Fumes
In-flight — Start descent.
HEATER switch (if installed) — OFF. All vents — Open.
Side windows — Open.
and altitude permits:
Source — Attempt to identify and secure.
If source is identified and smoke and/ or fumes still persist — Land as soon as possible.
If source is identified and smoke and/ or fumes are cleared — Land as soon as practical
Complete loss of tail rotor thrust in flight
Reduce throttle to idle, immediately enter autorotation, and maintain a minimum AIRSPEED of 52 KIAS (60 MPH) during descentNOTE
When a suitable landing site is not available, vertical fin may permit controlled flight at low power levels and sufficient AIRSPEED. During final stages of approach, a mild flare should be executed, making sure all power to rotor is off. Maintain helicopter in a slight flare and smoothly use collective to execute a soft, slightly nose-high landing. Landing on aft portion of skids will tend to correct side drift. This technique will, in most cases, result in a run-on type landing.