# SDR 98ZZZX2040

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 12, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N4177R](https://openairdocs.org/aircraft/N4177R), registered now
- Make and model: Piper PA-34-220T
- Registry model: [Piper PA-34-220T](https://openairdocs.org/model/piper-pa-34-220t) (OpenAirDocs)
- Aircraft serial: 3449046
- System (JASC): [3233 · Landing Gear Actuator](https://openairdocs.org/jasc/3233)
- Part: O-Ring
- Part number: 484706
- Condition: Damaged
- Location: Lt Mlg Actuataor
- Part time: 224 hours
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/98ZZZX2040

## Discrepancy

LANDING GEAR FAILED TO RETRACT FULLY IN-FLIGHT.  ISOLATED ACTUATORS AND FOUND LT MAIN GEAR ACTUATOR BYPASSING (AUDIBLE) FLUID/PRESSURE.  DISASSEMBLED ACTUATOR, FOUND DAMAGED AND APPARENTLY INCORRECT (UNDERSIDE) O-RING INSTALLED ON ACTUATOR PISTON.  SUSPECT INCORRECT O-RING INSTALLED AT MANUFACTURER (CLEVELAND) DURING ASSEMBLY.  SUBMITTER RECOMMENDED ACTUATOR AND AIRCRAFT MANUFACTURERS INSPECT ALL FACTORY STOCK AND SPARES FOR PROPER O-RING INSTALLATION.

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