What was found
ENGINE WAS REMOVED FOR MAKING METAL. INSPECTED AND FOUND GALLING ON NR 5 BEARING AND METAL SLIVERS UNDER NR 5 BEARING NUT AND CUP WASHER. ALSO FOUND NR 5 BEARING INTERNAL OUTER RACE DETERIORATING.
- Difficulty date
- June 8, 1998
- Submitted
- March 26, 2000
- Operation
- General aviation
- Aircraft
- N407AL
- Make and model
- Bell 407
- Aircraft serial
- 53044
- Engine
- Allsn 250C47B
- System (JASC)
- 7250 · Turbine Section
- Part
- Bearing
- Part number
- 6871505
- Condition
- Galled
- Location
- Nr 5
- Part time
- 1,164 hours
- Component
- 23063354
- 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.