# SDR YENA201710170846

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 17, 2017
- Submitted: October 18, 2017
- Operation: Air carrier
- Aircraft: [N547JB](https://openairdocs.org/aircraft/N547JB), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 1849
- Aircraft time: 60,997 hours, 21,807 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Safety Valve
- Part number: 1905A000001
- Part serial: 2243
- Condition: Failed
- Location: Mlg
- Part time: 61,003 hours, 21,807 cycles
- Stage of operation: CL
- 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/YENA201710170846

## Discrepancy

AFTER TAKEOFF,  AN ECAM MESSAGE FOR THE LANDING GEAR NOT UPLOCKED. LANDED.   AFTER LANDING, LOST NOSE WHEEL STEERING; FOUND GREEN SYS SAFETY VALVE STUCK OPEN.  R & R THE SAFETY VALVE IAW AMM 32-31-17-400-001. TESTED THE LANDING GEAR IAW AMM 32-31-00-720-002.

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