# SDR AALA202605190552

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 18, 2026
- Submitted: May 19, 2026
- Operation: Air carrier
- Aircraft: [N121UW](https://openairdocs.org/aircraft/N121UW), registered now
- Make and model: Airbus A320-214
- Registry model: [Airbus A320-214](https://openairdocs.org/model/airbus-a320-214) (OpenAirDocs)
- Aircraft serial: 1294
- Aircraft time: 71,582 hours, 36,185 cycles
- System (JASC): [5250 · Fixed Inner Doors](https://openairdocs.org/jasc/5250)
- Part: Control Box
- Part number: AR47091
- Part serial: NC1647
- Condition: Inoperative
- Location: Zone 800
- Part time: 82,019 hours, 34,563 cycles
- Stage of operation: LD
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202605190552

## Discrepancy

AIRCRAFT WAS GROUNDED: ON LANDING COCKPIT DOOR POPPED OPEN. MAINTENANCE REPLACED CDLS CONTROL UNIT IAW AMM 52-51-14.

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