# SDR AALA202509125048

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 28, 2025
- Submitted: September 12, 2025
- Operation: Air carrier
- Aircraft: [N406AN](https://openairdocs.org/aircraft/N406AN), registered now
- Make and model: Airbus A321-253NX
- Registry model: [Airbus A321-253NX](https://openairdocs.org/model/airbus-a321-253nx) (OpenAirDocs)
- Aircraft serial: 8834
- Aircraft time: 20,971 hours, 5,755 cycles
- System (JASC): [2750 · Trailing Edge Flap Control System](https://openairdocs.org/jasc/2750)
- Part: Flap
- Condition: Out Of Rig
- Location: Zone 500 - Lh Wi
- Stage of operation: CR
- How discovered: O
- Nature of condition: F, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202509125048

## Discrepancy

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT DIVERTED TO IAD DUE TO THE FLIGHT CREW REPORTING A FLIGHT CONTROL FLAPS LOCKED ALIGNMENT FAULT. THE AIRCRAFT LANDED SAFELY AT IAD WITHOUT FURTHER INCIDENT.  MAINTENANCE FOUND THE LEFT TRAILING EDGE FLAPS #3 AND 4 ALONG WITH THE FLAP DRIVE SYSTEM ON BOTH WINGS OUT OF RIG. MAINTENANCE ADJUSTED THE LEFT WING #3 AND 4 FLAPS PER AMM 27-51-00, ALONG WITH THE FLAP DRIVE SYSTEM ON BOTH WINGS PER AMM 27-54-00. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED WITH NO ISSUES NOTED.

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