ENSTROM 280FX OPERATOR’S MANUAL 3-15
FAA Approved: Nov 26/13 Rev. 9
Report No. 28-AC-020 Nov 5/13
3-13. Clutch Disengagement Light (CLUTCH ENGAGE)
On
Should the manual clutch become disengaged during flight,
it will result in an instantaneous engine overspeed and
severe left yaw if manifold pressure is much above idle.
These indications will be instantaneous and the pilot
should immediately enter autorotation. If the clutch
disengaged light illuminates without engine overspeed or
severe yaw, it may mean that a clutch disengagement is
probable or that the microswitch or electrical circuit has
malfunctioned. The pilot should proceed as follows:
1. Clutch Disengagement Light On with Motion Cues
a. Enter autorotation and reduce power to idle.
b. Perform autorotative landing.
c. Inspect for and correct the source of trouble before
continuing flight. Refer to the F-28F/280F Series
Maintenance Manual for engine overspeed trouble-
shooting (para. 3-3 G.).
2. Clutch Disengagement Light On Without Motion Cues
a. Reduce power and be prepared for sudden clutch
disengagement.
b. Land at nearest suitable landing area.
CAUTION
Be prepared for autorotation should clutch become
disengaged.
c. Inspect for and correct the source of trouble before
continuing flight.
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level of the 280FX Rotorcraft Flight Manual.
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