# SDR AALA202608130920

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 11, 2026
- Submitted: August 13, 2026
- Operation: Air carrier
- Aircraft: [N172US](https://openairdocs.org/aircraft/N172US), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 1472
- Aircraft time: 81,434 hours, 31,557 cycles
- System (JASC): [2751 · Trailing Flap Position Indicating System](https://openairdocs.org/jasc/2751)
- Part: Proximity Sensor
- Part number: ABS012130
- Condition: Out Of Adjust
- Location: Zone 500
- Stage of operation: AP
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202608130920

## Discrepancy

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED INBOUND INTO SAN DUE TO THE FLIGHT CREW REPORTING THAT ON APPROACH WHEN SELECTING FLAPS 2 AT ABOUT 205 KNOTS AN ECAM MESSAGE FOR FLIGHT CONTROL FLAPS LOCKED ALIGNMENT FAULT DISPLAYED - THE FLIGHT CREW PERFORMED THE ECAM CHECKLIST AND LANDED SAFELY AT SAN WHERE THE AIRCRAFT TAXIED TO THE GATE UNDER ITS OWN POWER - MAINTENANCE ADJUSTED THE LEFT-WING INTERCONNECTING STRUT PROXIMITY SENSOR PER AMM 27-51-44

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