What was found
BEVEL GEAR CRACKED AT BOLT HOLE. THIS IS THE 1ST TIME THIS GEARBOX WAS OPENED UP FOR MAINT. SHAFT SCORED. REMOVE AND REPLACED.
- Difficulty date
- December 24, 2002
- Submitted
- January 6, 2003
- Operation
- Air carrier
- Aircraft
- N408AL
- Make and model
- Bell 407
- Aircraft serial
- 53491
- Aircraft time
- 1,184 hours
- System (JASC)
- 6320 · Main Rotor Gearbox
- Part
- Bevel Gear
- Part number
- 407040037101
- Part serial
- A653
- Condition
- Scored
- Location
- M/R Gearbox
- Part time
- 1,184 hours
- Component
- Gearbox
- Component part number
- 407040006107
- 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.