# SDR AALA202601307885

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 19, 2026
- Submitted: January 30, 2026
- Operation: Air carrier
- Aircraft: [N135NN](https://openairdocs.org/aircraft/N135NN), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6520
- Aircraft time: 33,459 hours, 12,528 cycles
- System (JASC): [2751 · Trailing Flap Position Indicating System](https://openairdocs.org/jasc/2751)
- Part: Proximity Sensor
- Part number: ABS012130
- Condition: Faulty
- Location: Zone 500
- Stage of operation: AP
- 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/AALA202601307885

## Discrepancy

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED ON APPROACH INTO MIA DUE TO THE FLIGHT CREW REPORTING FLAPS LOCKED ALIGNMENT FAULT WITH THE FLAPS AT 2. THE AIRCRAFT LANDED SAFELY AT MIA AND TAXIED TO THE GATE UNDER ITS OWN POWER. MAINTENANCE REPLACED THE LEFT-WING TRAILING EDGE FLAP INTERCONNECTING STRUT PROXIMITY SENSORS 37CV (AALA202601215515) AND 39CV (AALA202601307885) PER AMM 27-51-44. MAINTENANCE ALSO REPLACED THE RIGHT-WING TRAILING EDGE FLAP INTERCONNECTING STRUT PROXIMITY SENSORS 38CV (AALA202601306073) AND 40CV (AALA202601305360) PER AMM 27-51-44. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED WITH NO ISSUES NOTED.

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