What was found
FOUND NR 4 BEARING SEPARATOR BROKEN IN PIECES. BEARING FAILURE CAUSED METAL IN OIL.
- Difficulty date
- February 21, 2003
- Submitted
- February 25, 2003
- Operation
- Air carrier
- Aircraft
- N477AL
- Make and model
- Bell 407
- Aircraft serial
- 53203
- Aircraft time
- 7,826 hours
- Engine
- Allsn 250C47B
- Engine time
- 4,886 hours
- System (JASC)
- 8300 · Accessory Gearboxes
- Part
- Bearing
- Part number
- 23066678
- Part serial
- JJ04115
- Condition
- Spalled
- Location
- Accessory G/B
- Part time
- 1,223 hours
- Component
- Gearbox
- Component part number
- 23063393
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.