# SDR 2014FA0000026

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 14, 2013
- Submitted: January 16, 2014
- Operation: General aviation
- Make and model: Gulstm GIV
- Aircraft time: 11,863 hours, 5,804 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Valve
- Part number: 1159SCH2243
- Part serial: NSN
- Condition: Inoperative
- Location: Zone 700
- Part time: 11,863 hours, 5,804 cycles
- Stage of operation: LD
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2014FA0000026

## Discrepancy

ANTI-ROTATION VALVE FAILURE TO RELEASE BRAKE PRESSURE TO PERMIT WHEEL ROTATION DURING EXTENSION AND LANDING WHICH DESTROYED BOTH LT LANDING GEAR TIRES.

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