# SDR HEEA0016126

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 6, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N407MM](https://openairdocs.org/aircraft/N407MM), registered now
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- Aircraft serial: 53060
- System (JASC): [6520 · Tail Rotor Gearbox](https://openairdocs.org/jasc/6520)
- Part: Boot
- Part number: PHI407112
- Condition: Leaking
- Location: Tail Rotor
- Part time: 1,970 hours
- Stage of operation: IN
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HEEA0016126

## Discrepancy

BOOT SWOLLEN AND LEAKING GREASE.  ALSO REMOVED TRUNNION ASSY P/N 206-011-728-001, DUE TO SPINDLES WORN BEYOND LIMITS.  ALSO REMOVED BEARINGS P/N MS27641-5 DUE TO TRUNNION SPINDLE SEAT WORN BEYOND LIMITS.

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