# SDR DXTA2012030704907

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 6, 2012
- Submitted: March 7, 2012
- Operation: Air carrier
- Aircraft: [N700QS](https://openairdocs.org/aircraft/N700QS), registered now
- Make and model: Israel GALAXY
- Registry model: [Israel GALAXY](https://openairdocs.org/model/israel-aircraft-industries-galaxy) (OpenAirDocs)
- Aircraft serial: 052
- Aircraft time: 7,049 hours, 4,225 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Selector Valve
- Part number: 4017
- Part serial: IL062
- Condition: Leaking
- Location: Mlg
- Part time: 7,049 hours, 4,225 cycles
- Stage of operation: DE
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2012030704907

## Discrepancy

ON GEAR EXTENSION,  RECEIVED GREEN LIGHTS FOR LT MAIN AND NOSE GEAR BUT THE RT MAIN INDICATED YELLOW FOR APPROX 20 SECONDS FOLLOWED BY A RED "UNSAFE" INDICATION FOR ABOUT 30 SECONDS.   ALSO SHOWED THE RT ANTISKID SYS INOPERATIVE.  THE RT MAIN GEAR LIGHT THEN TURNED GREEN AND THE ANTI-SKID INOPERATIVE LIGHT EXTINGUISHED.   LANDED WITHOUT FURTHER INCIDENT.  TROUBLESHOT SYS AND FOUND UPLOCK & DOWNLOCK PRESSURES ERRATIC & INCONSISTENT WITH LIMITS GIVEN IN MM 32-32-00.  LANDING GEAR SELECTOR VALVE LEAKING INTERNALLY.  REPLACED SELECTOR VALVE WITH REPAIRED UNIT IAW CMP 323002.  OPS CHECKED GOOD.

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