What was found
MAIN ROTOR GEARBOX BEVEL RING GEAR TOOTH FAILURE. THIS IS THE THIRD INCIDENT OF A GEAR TOOTH FAILURE.
- Difficulty date
- October 14, 2017
- Submitted
- October 18, 2017
- Operation
- General aviation
- Filed by
- ULXR905L
City of Los Angeles-General Services - Aircraft
- N701WP
- Make and model
- Bell 407
- Aircraft serial
- 53542
- Aircraft time
- 7,271 hours
- System (JASC)
- 6320 · Main Rotor Gearbox
- Part
- Bevel Gear
- Part number
- 407040035101
- Part serial
- A1013
- Condition
- Failed
- Location
- M/R Gearbox
- Part time
- 5,845 hours
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.