What was found
WHEN PAN WAS REMOVED TO PERFORM A SPIRAL BEVEL INSPECTION, MECHANIC FOUND THE NR 9 STUD BROKEN OFF AND LAYING IN THE AUX OIL SUMP PRIOR TO BEGINNING TORQUE CHECK. TRANSMISSION IS BEING REMOVED AND REPLACED.
- Difficulty date
- December 30, 2016
- Submitted
- December 30, 2016
- Operation
- General aviation
- Make and model
- Boeing 234
- Aircraft serial
- MJ006
- System (JASC)
- 6300 · Main Rotor Drive System
- Part
- Stud
- Part number
- BACB30US612
- Condition
- Broken
- Location
- Transmission
- Component
- Transmission
- Component part number
- 234D22004
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.