What was found
(CAN) CLUTCH WAS REMOVED FROM ACFT FOR VISUAL INSP DUE TO ISSUES WITH CLUTCH ASSY`S. TEARDOWN REVEALED THE FOLLOWING: CAGE CRACKED AT 1 CROSSBAR, SHAFT C166-4 WORN UNDERSIZE, HSG C167-3 WORN OVERSIZE AND OIL WAS VERY BLACK.
- Difficulty date
- September 24, 2008
- Submitted
- November 3, 2008
- Operation
- General aviation
- Make and model
- Robsin R44RAVENII
- Aircraft time
- 1,606 hours
- Engine
- Lyc IO540AE1A5
- System (JASC)
- 6310 · Engine/Transmission Coupling
- Part
- Sprag Clutch
- Part number
- C1883
- Condition
- Cracked
- Location
- Main Rotor
- Part time
- 1,781 hours
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.