# SDR 2013FA0000057

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 25, 2013
- Submitted: January 25, 2013
- Operation: General aviation
- Aircraft: N775MF
- Make and model: Piper PA-31T
- Registry model: [Piper PA-31T](https://openairdocs.org/model/piper-pa-31t) (OpenAirDocs)
- Aircraft serial: 31T7920079
- Aircraft time: 12,239 hours
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Housing
- Part number: 28108
- Condition: Cracked
- Location: Hyd Filter
- Part time: 5,100 hours
- Component: Filter Assembly
- Component part number: 28110H
- Stage of operation: AP
- How discovered: O
- Nature of condition: K
- Precautionary procedure: L
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2013FA0000057

## Discrepancy

FAILURE OF THE LT HYDRAULIC FILTER HOUSING.  HOUSING CRACKED BETWEEN LOWEST AND SECOND LOWEST ATTACHING THREADS.  THE HOUSING THEN BENT AWAY FROM UPPER HOUSING CAUSING THE SEALING O-RING TO LEAK SIGNIFICANTLY. ACFT BACK UP SYS WORKED CORRECTLY AND THE LANDING GEAR WAS SUCCESSFULLY HAND PUMPED INTO THE DOWN AND LOCKED POSITION.  ACFT LANDED SAFELY.

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