# SDR AALA202606123267

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 9, 2026
- Submitted: June 13, 2026
- Operation: Air carrier
- Aircraft: [N420AN](https://openairdocs.org/aircraft/N420AN), registered now
- Make and model: Airbus A321-253NX
- Registry model: [Airbus A321-253NX](https://openairdocs.org/model/airbus-a321-253nx) (OpenAirDocs)
- Aircraft serial: 9584
- Aircraft time: 21,914 hours, 5,995 cycles
- System (JASC): [2750 · Trailing Edge Flap Control System](https://openairdocs.org/jasc/2750)
- Part: Jam-Nut
- Condition: Loose
- Location: Zone 600
- Stage of operation: LD
- How discovered: O
- Nature of condition: F, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202606123267

## Discrepancy

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED INTO DFW DUE TO THE FLIGHT CREW REPORTING FLAPS LOCKED WHILE CONFIGURING FOR LANDING. FLAPS GREATER THAN 1 LESS THAN 2. FLIGHT CREW RAN PROCEDURES AND LANDED SAFELY AT DFW WHERE THE AIRCRAFT TAXIED TO THE GATE UNDER ITS OWN POWER. MAINTENANCE FOUND THE JAMNUT ON THE RIGHT-HAND FLAP INTERCONNECTING STRUT LOOSE AND BACKED OFF. MAINTENANCE TIGHTENED JAMNUT AND ACCOMPLISHED A SATISFACTORY ADJUSTMENT AND OPERATIONAL CHECK OF THE RIGHT-HAND FLAP INTERCONNECTING STRUT PER AMM 27-51-44.

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