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3 Cards in this Set
- Front
- Back
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MAIN DRIVE SHAFT FAILURE |
A failure of the main driveshaft will be indicated by a sudden increase in engine RPM, decrease in rotor RPM, a left yaw, activation of the low RPM audio, and illumination of the ROTOR RPM light. A transient overspeed of N1 and N2 may occur, but will stabilize. In the event of a main driveshaft failure: a. Autorotate ─ Establish a Power On autorotation B. Emer Shutdown ─ Accomplish after landing . |
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Main drive shaft failure NOTE |
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 during the autorotation. Adjust throttle as required to maintain engine RPM within normal limits. |
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Clutch fails to disengage |
A clutch failing to disengage in flight will be indicated by the rotor RPM decaying with the engine RPM as the throttle is reduced to the engine idle position when entering an autorotational descent. This condition results in total loss of autorotational capability. If a failure occurs: a. Throttle ─ Open . B. Land as soon as possible . |
