# SDR 96ZZZX3228

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 30, 1996
- Submitted: March 26, 2000
- Operation: General aviation
- Filed by: [Columbia Air Services Inc, repair station SO5R204N](https://openairdocs.org/faa-repair-station/SO5R204N/columbia-air-services-inc.md) (OpenAirDocs)
- Aircraft: N775CA
- Make and model: Piper PA-42-720
- Registry model: [Piper PA-42-720](https://openairdocs.org/model/piper-pa-42-720) (OpenAirDocs)
- Aircraft serial: 425501004
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Shuttle Valve
- Part number: 491949
- Condition: Cracked
- Location: Nlg Actuator
- Part time: 4,000 hours
- Stage of operation: NR
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/96ZZZX3228

## Discrepancy

NOSE GEAR SHUTTLE VALVE FITTING CRACKED (FRACTURED) CAUSING A HYDRAULIC LEAK.  THE FITTING IN QUESTION SCREWS INTO THE NOSE GEAR ACTUATOR, PN 40874-5, PIPER SB 859 DATED, HAD BEEN COMPLETED.  SB 859 CALLS FOR THE INSTALLATION OF A SUPPORT BRACKET.  SHUTTLE VALVE, PIPER PN 491-949, WAS REPLACED WITH NEW PART.  SUBMITTER STATED THE DEFECTIVE PART MAY HAVE BEEN DAMAGED BEFORE THE SB WAS C/W AND WAS UNDECTABLE.

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