What was found
OPERATOR REPORTS 5 TRANSMISSION BEARING FAILURES WITHIN THE LAST YEAR. SUSPECT IMPROPERLY MANUFACTURED BEARINGS, AND, AS A RESULT, IMPROPER INSTALLATION. AN ACCIDENT PREVENTION RECOMMENDATION WAS SUBMITTED TO AAI-200.
- Difficulty date
- October 17, 1995
- Submitted
- March 26, 2000
- Operation
- General aviation
- Aircraft
- N615BH
- Make and model
- Bell 47G5A
- Aircraft serial
- 25126
- System (JASC)
- 6320 · Main Rotor Gearbox
- Part
- Bearing
- Part number
- 47620628003
- Condition
- Failed
- Location
- Transmission
- Part time
- 177 hours
- Component
- 4762060029
- Stage of operation
- IN
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.