# SDR 2009FA0000920

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 29, 2009
- Submitted: October 27, 2009
- Operation: General aviation
- Aircraft: [N656RB](https://openairdocs.org/aircraft/N656RB), registered now
- Make and model: Hughes 269C
- Registry model: [Hughes 269C](https://openairdocs.org/model/hughes-269c) (OpenAirDocs)
- Aircraft serial: S1744
- System (JASC): [6400 · Tail Rotor System](https://openairdocs.org/jasc/6400)
- Part: Gearbox
- Part number: 269A5600703
- Condition: Leaking
- Location: Tailrotor
- Part time: 984 hours
- Stage of operation: NR
- How discovered: O
- Nature of condition: K
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2009FA0000920

## Discrepancy

PILOT NOTE THE TAIL ROTOR GEARBOX WAS LEAKING.  GEARBOX WAS CLEANED WITH SOLVENT AND AIR DRIED AND THEN GROUND RAN FOR 2-3 MIN.  LEAKAGE AND CRACK WERE NOTED IN AREA DEPICTED IN DIAGRAM BELOW.  LOGBOOK RESEARCH NOTED NO EVIDENCE OF DAMAGE HISTORY OR TAIL ROTOR STRIKE.  CAUSE OF CRACK UNKNOWN.  (K)

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