What was found
HEAVY SPALLING ON GEAR TEETH DUE TO IMPROPER MESHING OF GEAR TEETH. REMOVED AND REPLACED.
- Difficulty date
- July 21, 2003
- Submitted
- July 28, 2003
- Operation
- Air carrier
- Aircraft
- N507AL
- Make and model
- Bell 407
- Aircraft serial
- 53103
- Aircraft time
- 14,266 hours
- Engine
- Allsn 250C30S
- Engine time
- 9,343 hours
- System (JASC)
- 6230 · Main Rotor Mast/Swashplate
- Part
- Gear
- Part number
- 23068295
- Part serial
- NN137777
- Condition
- Spalled
- Location
- Gearbox
- Part time
- 288 hours
- Component
- Gearbox
- Component part number
- 23035179
- 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.