# SDR USAA2010090991964

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 7, 2010
- Submitted: September 9, 2010
- Operation: Air carrier
- Aircraft: [N102UW](https://openairdocs.org/aircraft/N102UW), registered now
- Make and model: Airbus A320-214
- Registry model: [Airbus A320-214](https://openairdocs.org/model/airbus-a320-214) (OpenAirDocs)
- Aircraft serial: 844
- Aircraft time: 32,892 hours, 16,930 cycles
- System (JASC): [3234 · Landing Gear Selector](https://openairdocs.org/jasc/3234)
- Part: Selector Valve
- Part number: 114079016
- Part serial: CWDDDH4000
- Condition: Defective
- Location: Landing Gear
- Part time: 17,551 hours, 7,490 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: E
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA2010090991964

## Discrepancy

FLT 1123 CLT-GCM - RTF - EXTENDED AIRFRAME VIBRATION ON GEAR RETRACTION.  ECAM - L/G NOT LOCKED WHEN RETRACTED / LGCIU 1 FAULT / L/G DOOR DID NOT NOT CLOSE.  WHILE AIRBORNE RECEIVED ECAM MESSAGE - ENG 1 APP IDLE ONLY INOP SYSTEM LGCIU1, REVERSER 1, GPWS.  CREW RETURNED TO FIELD & ECAM MESSAGE AFTER TOUCHDOWN - GEAR DISAGREE.  MAINTENANCE REMOVED AND REPLACED THE LANDING GEAR DOOR SELECTOR VALVE 41GA IAW AIRBUS MAINTENANCE MANUAL 32-31-34 & PROXIMITY SENSOR 30GA IAW AMM 32-31-73.  RIGGED NLG DOOR UPLOCK ASSEMBLY IAW AMM 32-31-14-04.  ALSO FOUND NLG HARNESS WIRES FOR PROX SENSOR 25GA DETERIORATED - REPLACED WIRES IAW ELECTRICAL STANDARD PRACTICES MANUAL 20-33-11.

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