What was found
WHILE PERFORMING AD 95-22-09, PARA A, 250 HR SPIRAL BEVEL INSPECTION OF THE AFT TRANSMISSION NR 12 BOLT BROKE DURING INITIAL TORQUE CHECK AT 275" LB.
- Difficulty date
- August 24, 2016
- Submitted
- August 26, 2016
- Operation
- General aviation
- Aircraft
- N239CH
- Make and model
- Boeing 234
- Aircraft serial
- MJ006
- Aircraft time
- 29,955 hours
- System (JASC)
- 6320 · Main Rotor Gearbox
- Part
- Bolt
- Part number
- BACB30US612
- Condition
- Broken
- Location
- Zone 400
- Component
- Transmission · Boeing
- Component part number
- 234D22004
- Stage of operation
- IN
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.