What was found
NOISE HEARD ON SHUTDOWN. CLUTCH DISASSEMBLED AND INSPECTED. FOUND THE SPRAG CLUTCH CAGE CRACKED IN SEVERAL PLACES, ALSO INDIVIDUAL SPRAGS CRACKED.
- Difficulty date
- May 27, 2011
- Submitted
- September 9, 2011
- Operation
- General aviation
- Make and model
- Robsin R44RAVENII
- Aircraft time
- 1,360 hours
- Engine
- Lyc IO540AE1A5
- System (JASC)
- 6310 · Engine/Transmission Coupling
- Part
- Sprag Clutch
- Part number
- C1883
- Condition
- Cracked
- Location
- Main Rotor
- Part time
- 1,405 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.