# SDR 96ZZZX5481

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 8, 1996
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N3582P](https://openairdocs.org/aircraft/N3582P), registered now
- Make and model: Piper PA-31-350
- Registry model: [Piper PA-31-350](https://openairdocs.org/model/piper-pa-31-350) (OpenAirDocs)
- Aircraft serial: 318052103
- System (JASC): [2912 · Hydraulic Filter, Main](https://openairdocs.org/jasc/2912)
- Part: Filter
- Part number: 28110H
- Condition: Threads Broken
- Location: Hyd Sys
- Part time: 17,561 hours
- Component: Facet
- Stage of operation: AP
- Nature of condition: K
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/96ZZZX5481

## Discrepancy

LANDING GEAR WOULD NOT EXTEND WITHOUT USING EMERGENCY HAND PUMP.  FOUND HYD LEAK AT LT HYD FILTER ASSY.  O-RING WAS BLOWN AND UPON REMOVING FILTER BOWL, THREADS ON FILTER BOWL WERE FOUND BROKEN.  SUSPECT CAUSE THREADS SEPARATED FROM METAL FATIGUE OR OVERTORQUING.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.