What was found
TAIL ROTOR GEARBOX HUM DETECTED. ABNORMALITY ON OUTPUT GEAR. REPLACED WITH SERVICEABLE PART.
- Difficulty date
- May 28, 2002
- Submitted
- June 10, 2002
- Operation
- Air carrier
- Aircraft
- N142PH
- Make and model
- Bell 412
- Aircraft serial
- 33150
- System (JASC)
- 6520 · Tail Rotor Gearbox
- Part
- Gearbox
- Part number
- 212040004009FM
- Part serial
- AFT25205
- Condition
- Vibration
- Location
- Tail Rotor
- Part time
- 21,326 hours
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- E
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.