# SDR USAA2014071400008

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 11, 2014
- Submitted: July 14, 2014
- Operation: Air carrier
- Aircraft: [N813AW](https://openairdocs.org/aircraft/N813AW), registered now
- Make and model: Airbus A319-132
- Registry model: [Airbus A319-132](https://openairdocs.org/model/airbus-a319-132) (OpenAirDocs)
- Aircraft serial: 1223
- Aircraft time: 49,188 hours, 20,207 cycles
- System (JASC): [3260 · Landing Gear Position and Warning](https://openairdocs.org/jasc/3260)
- Part: Proximity Sensor
- Part number: ABS012110
- Condition: Faulty
- Location: Nlg
- Stage of operation: AP
- How discovered: O
- Nature of condition: J
- Precautionary procedure: L
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA2014071400008

## Discrepancy

CREW INITIATED A GO AROUND AT A SPEED OF 200 KTS.  GEAR DID NOT RETRACT. CYCLED GEAR DOWN & HAD THREE GREEN INDICATION ON LG PAGE & LOWER ECAM.  ECAM SHOWED LG NOT UPLOCKED.  AFTER LANDING, AN ADDITIONAL ECAM LG SYS DISAGREE APPEARED.  REPLACED NLG PROX SENSOR 24 GA.  REPLACED FLIGHT GND SENSING MECHANISM CASING & TARGET SUPPORT ASSEMBLY IAW MM 32-21-45.  GEAR EXTENSION & RETRACTION OPERATIONS CHECKED GOOD IAW MM 32-31-00-720-002.

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