What was found
UPON INSPECTION OF PART. SPALLING AND GALLING GEAR TEETH DUE TO ROUGH EDGES ON T/M GEAR TEETH. (PN 6893673 SN NN144757) TT 1878.2.
- Difficulty date
- March 24, 2002
- Submitted
- April 16, 2002
- Operation
- Air carrier
- Aircraft
- N537AL
- Make and model
- Bell 407
- Aircraft serial
- 53230
- System (JASC)
- 6320 · Main Rotor Gearbox
- Part
- Pinion Gear
- Part number
- 6893672
- Part serial
- NN77787
- Condition
- Spalled
- Location
- M/R Gearbox
- Component
- Gearbox · Allsn · C47B
- Component part number
- 23063393
- 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.