What was found
(CAN) MAIN ROTOR GEARBOX REQUIRED TO RESOLVE MAIN GEARBOX BORE HOLE OVERSIZED. MAIN GEARBOX INSTALLED AS PER AMP 39-B-63-20-00-00A-720A-K. (TC# 20190807003)
- Difficulty date
- August 6, 2019
- Submitted
- August 17, 2020
- Operation
- General aviation
- Make and model
- Agusta AW139
- Aircraft time
- 4,231 hours
- System (JASC)
- 6320 · Main Rotor Gearbox
- Part
- Gearbox
- Part number
- 4G6320A00132
- Condition
- Damaged
- Location
- Main Rotor
- Part time
- 3,887 hours
- 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.