You can download the POHs from the robinson website
Robinson Helicopter Co.
If the clutch light stays on for 10 seconds or more (used to be shorter) in flight you are to pull the clutch circuit breaker and land as soon as practical or immediately if there is vibration.
The clutch light is on if the actuator is tensioning or de-tensioning the belts so it could be a sign of impending belt failure or a failure of the microswitch and the belts are being de-tensioned.
It does come on from time to time in flight as the belts warm up etc... the longest i've counted is 8 seconds
