What was found
UPON REPAIRS OF GEARBOX, BEARING RACE HAVING TWO SERIAL NUMBERS ETCHED ON RACE. TO PREVENT RECURRENCE: PROPER IDENTIFICATION OF PART BEFORE LEAVING FACTORY.
- Difficulty date
- January 25, 2002
- Submitted
- February 21, 2002
- Operation
- Air carrier
- Aircraft
- N937AL
- Make and model
- Bell 407
- Aircraft serial
- 53383
- Engine
- Allsn 250C47B
- System (JASC)
- 6320 · Main Rotor Gearbox
- Part
- Bearing
- Part number
- 23066678
- Part serial
- MP00480
- Condition
- Improper Part
- Location
- M/R Gearbox
- Part time
- 3,190 hours
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- W
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.