# SDR V8ZA20180917001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 22, 2018
- Submitted: September 17, 2018
- Operation: Air carrier
- Aircraft: [N112EE](https://openairdocs.org/aircraft/N112EE), registered now
- Make and model: Gulstm 690A
- Aircraft serial: 11330
- Aircraft time: 9,737 hours
- System (JASC): [3233 · Landing Gear Actuator](https://openairdocs.org/jasc/3233)
- Part: O-Ring
- Part number: MS28775114
- Condition: Torn
- Location: Rt Mlg
- Part time: 619 hours, 304 cycles
- Component: Cylinder, Gulstm
- Component part number: 710022501
- Stage of operation: IN
- How discovered: O
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/V8ZA20180917001

## Discrepancy

PILOT NOTICED HYDRAULIC FLUID ON THE RIGHT HAND MAIN LANDING GEAR AUXILIARY RETRACTION CYLINDER SHAFT. UPON DISASSEMBLY OF THE RETRACT CYLINDER THE SHAFT O-RING HAD A SMALL TEAR IN IT. AFTER O-RINGS AND BACKUP RINGS WERE REPLACED THE AIRCRAFT WAS PUT ON JACKS, GEAR RETRACTIONS AND EMERGENCY EXTENSION CHECKS WERE ACCOMPLISHED WITH OPERATIONS FOUND TO NORMAL AND NO LEAKS WERE NOTED.

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