# SDR AALA2018050109014

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 26, 2018
- Submitted: May 1, 2018
- Operation: Air carrier
- Aircraft: [N724UW](https://openairdocs.org/aircraft/N724UW), registered now
- Make and model: Airbus A319-112
- Registry model: [Airbus A319-112](https://openairdocs.org/model/airbus-industrie-a319-112) (OpenAirDocs)
- Aircraft serial: 1122
- Aircraft time: 50,579 hours, 30,201 cycles
- System (JASC): [3260 · Landing Gear Position and Warning](https://openairdocs.org/jasc/3260)
- Part: Proximity Sensor
- Condition: Out Of Tolerance
- Location: Mlg
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA2018050109014

## Discrepancy

AFTER TAKEOFF,  A LG DOOR NOT CLOSED MESSAGE APPEARED FOR 20 SECONDS,  THEN IT CLEARED ITSELF.   AFTER LANDING THE L/G SYS DISAGREE MESSAGE APPEARED.   THE PROXIMITY SENSOR WAS FOUND OUT OF TOLERANCE.  REPLACED THE PROXIMITY SENSOR (8GA) IAW AMM 32-31-73.  AIRCRAFT WAS GROUNDED.

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