TH-67 Chapter 9 - Underlines only Flashcards
“Autorotate”
- Collective - Adjust as required to maintain rotor RPM (90 - 107%)
- “Pedals - Adjust” Crab or slip as required
- “Throttle - Adjust as necessary” Close as required
- “Airspeed - Adjust” as required
“Emergency Shutdown”
- “Throttle - Closed”
- “Fuel Valve Switch - Off”
- “Batt Switch - OFF as desired” Before turning the battery switch off during an in-flight emergency, the pilot should consider a “MAYDAY” call, selecting emergency on the transponder and the possible effects of a total electrical failure.
“Engine Failure at a hover”
- “Autorotate”
- “Emer Shutdown” - Accomplish after landing.
“Engine Failure - Low Altitude/Airspeed or Cruise.”
- “Autorotate”
- “Emer Shutdown” - Accomplish during descent if time permits.
“Engine Restart”
- “Throttle - Close”
- “Fuel Valve Switch - On”
- “Attempt start”
- “Land as soon as possible”
“Engine Compressor Stall”
- “Collective - Reduce”
- “Engine Anti-ice and Heater switches - OFF”
- “Land as soon as possible”
“Engine Overspeed”
- “Collective - Increase” to load the rotor and sustain engine/rotor RPM below the maximum operating limit.
- “Throttle - Adjust” until normal operating RPM is attained.
- “Land as soon as possible” Perform a power-on approach and landing by controlling the RPM manually with the throttle.
If RPM cannot be controlled by throttle adjustment.
- “Autorotate” when over a safe landing area.
- “Emer Shutdown” - Accomplish during descent if time permits.
“Engine Underspeed if rotor in green”
- “Land as soon as possible” in an area that will permit a run-on landing.
“Engine underspeed below 90%”
- Autorotate
- Emer Shutdown - Accomplish during the descent if time permits.
“Engine Surges”
a. “GOV INCR switch - INCR for maximum RPM”
b. “Throttle - Adjust to 97% N2”
c. “Land as soon as possible”
If engine surges are not controlled in steps a. and b. above proceed as follows:
a. “Autorotate” - When over a safe landing area.
b. “Emer Shutdown” - Accomplish during descent if time permits.
“LOW INLET PRESSURE caution light ON”
- “ENGINE ALTERNATE AIR SWITCH - OPEN”
- “If caution light remains ON, Land As Soon As Possible.”
- If caution light goes out, Land As Soon As Practicable. Related engine parameters should be monitored frequently until landing.
“Engine Icing”
NOTE
When anti-ice system is ON, TOT will rise for same power setting.
- “ENGINE ANTI-ICING switch - ON” (if conditions warrant).
- “TURB OUT TEMP - Maintain within limits”
“If the engine oil pressure is below 50 PSI or the temperature is above 107*C”
- “Land as soon as possible”
NOTE
If engine oil pressure is falling or low and the oil temperature is rising or high, a severe leak may be present.
“Loss of T/R Effectiveness”
This is a situation involving a loss of effective tail rotor thrust without a break in the drive system which cannot be stopped with full left pedal application. If LTE is experienced, simultaneously:
- “Pedal - Full Left”
- “Cyclic - Forward”
- As recovery is affected, adjust controls for normal flight.
- If spinning cannot be stopped and crash is imminent, an autorotaion may be the best course a of action. Maintain full left peddle until spin stops, then adjust to maintain heading.
“Main Drive Shaft Failure”
WARNING
The engine must remain in operation to provide power to the tail rotor. Failure to maintain engine power will result in loss of aircraft control. Adjust throttle as required to maintain engine RPM within normal limits.
- “Autorotate - Establish a Power On autorotation.”
- “Emergency Shutdown - Accomplish after landing.”