What was found
TAIL ROTOR GEARBOX OUTPUT SHAFT HAS EXCESSIVE PITTING ON SPLINES. OUTPUT CAP 406040408101, SN AFS1424 BEARING LINER WORN BEYOND LIMITS. REPAIRED.
- Difficulty date
- January 16, 2003
- Submitted
- January 20, 2003
- Operation
- Air carrier
- Aircraft
- N501PH
- Make and model
- Bell 407
- Aircraft serial
- 53401
- Aircraft time
- 2,126 hours
- System (JASC)
- 6520 · Tail Rotor Gearbox
- Part
- Shaft
- Part number
- 407040416101
- Part serial
- A1
- Condition
- Corroded
- Location
- Trgb Output
- Part time
- 2,127 hours
- Component
- Gearbox
- Component part number
- 406040400119
- 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.