From Flight Manual (Issue 2)
Tail rotor failure
It could consist either in a tail rotor transmission failure, or in a tail rotor loss.
This failure can be detected by sudden yaw acceleration - nose to the left - and/or totally ineffective pedals.
Caution : Nose to the right : probable engine failure
Nose to the left : probable tail rotor failure
Hovering IGE :
1. LAND IMMEDIATELY,
2. Reduce throttle in order to reduce left yaw rate,
3. Cushion contact with the ground by applying collective pitch up to high stop if necessary.
Other flight cases :
1. Switch governor OFF,
2. Adjust power to maintain 70 to 80 kt IAS,
3. Reach an appropriate surface for an autorotation running landing,
4. Carry out a full autorotation landing. Reduce airspeed as late as you can. Land with as much airspeed as the surface permits. Use small power inputs to correct yaw.
Yaw control failure
Hovering IGE :
1. LAND IMMEDIATELY,
2. Lower the collective slowly enough to land smoothly, while rolling-off throttle to reduce yawing nose to the right.
Other flight cases :
1. LAND AS SOON AS PRACTICABLE,
2. Adjust IAS to 70 - 80 kt IAS,
3. Adjust power to minimize sideslip and keep nose to the right,
4. Reach an appropriate surface for a running landing.
Carry out a cautious landing. Reduce airspeed as late as you can. Land with as much airspeed as the surface permits. Use small power inputs to correct yaw.
Note : Prefer wind from the right.
Last edited by longtime lurker; 25th Apr 2010 at 12:41.
Reason: To clarify source