# SDR UALA2011121906950

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 15, 2011
- Submitted: January 17, 2012
- Operation: Air carrier
- Aircraft: N420UA
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 489
- Aircraft time: 59,274 hours, 22,126 cycles
- Engine: Iae V2527A5
- System (JASC): [3260 · Landing Gear Position and Warning](https://openairdocs.org/jasc/3260)
- Part: Proximity Sensor
- Condition: Failed
- Location: Nlg
- 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/UALA2011121906950

## Discrepancy

AFTER TAKE OFF MLG DID NOT RETRACT. ECAM DOORS NOT CLOSED & GEAR NOT UPLOCKED ILLUMINATED. RECYCLED OK. REPLACED NLG PROXIMITY SENSOR PER MM. OPERATED NOSE GEAR PER MM, ALL INDICATIONS NORMAL.

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