What was found
DURING GROUND RUNS AFTER MAJOR INSPECTION, TAIL ROTOR INTERMEDIATE GEARBOX MADE EXCESSIVE METAL.
- Difficulty date
- February 13, 2015
- Submitted
- February 18, 2015
- Operation
- Air carrier
- Aircraft
- N854UH
- Make and model
- Bolkms BK117C2
- Aircraft serial
- 9348
- Aircraft time
- 3,188 hours
- System (JASC)
- 6520 · Tail Rotor Gearbox
- Part
- Gearbox
- Part number
- 4639002007
- Condition
- Making Metal
- Location
- Tail Rotor
- Stage of operation
- TX
- How discovered
- M
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.