# SDR AALA202203252406

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 16, 2022
- Submitted: March 25, 2022
- Operation: Air carrier
- Aircraft: [N112US](https://openairdocs.org/aircraft/N112US), registered now
- Make and model: Airbus A320-214
- Registry model: [Airbus A320-214](https://openairdocs.org/model/airbus-a320-214) (OpenAirDocs)
- Aircraft serial: 1134
- Aircraft time: 58,858 hours, 34,053 cycles
- System (JASC): [3260 · Landing Gear Position and Warning](https://openairdocs.org/jasc/3260)
- Part: Control Unit
- Part number: 664700500A4D
- Part serial: 2551
- Condition: Faulted
- Location: Zone 100 - Fuse
- Part time: 58,569 hours, 31,951 cycles
- Stage of operation: TO
- How discovered: V
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202203252406

## Discrepancy

AIRCRAFT WAS GROUNDED: AFTER TAKEOFF AND GEAR RETRACTION, RECEIVED AN ECAM MESSAGE LANDING GEAR DOORS NOT CLOSED TEMPORARILY. MESSAGE DISAPPEARED AFTER 20-30 SECONDS BEFORE GEAR AS CYCLED, UNABLE TO DETERMINE WHICH DOOR WAS OPEN. **SUPPLEMENTAL REPORT FOR AALA202203172406: REPLACED #1 LANDING GEAR CONTROL INTERFACE UNIT PER AMM 32-31-71 AND THE NOSE LANDING GEAR DOOR ACTUATING CYLINDER PER AMM 32-11-16. (AALA202203258849) A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED. ** (CLOSED)

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