# SDR AALA202601225243

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 12, 2026
- Submitted: January 22, 2026
- Operation: Air carrier
- Aircraft: [N917NN](https://openairdocs.org/aircraft/N917NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 29572
- Aircraft time: 38,003 hours, 16,386 cycles
- System (JASC): [2750 · Trailing Edge Flap Control System](https://openairdocs.org/jasc/2750)
- Part: Fseu
- Part number: 285A12002
- Condition: Faulty
- Location: Flap Sys
- Stage of operation: AP
- 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/AALA202601225243

## Discrepancy

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: THE FLAPS DID NOT EXTEND PAST 5, THIS IS THE THIRD CONSECUTIVE TIME THAT THIS ISSUE HAPPENED. AIRCRAFT EMERGENCY LANDED INTO ORD SAFELY. ACCOPLISHED FLAP POSITION TRANSMITTER DISAGREE PROBLEM FAULT ISOLATION, PER TSM 27-51-00-810-813. REMOVED AND REPLACED FSEU UNIT, PER AMM 27-51-01-400-801. ALL SYSTEM OPS CHECK NORMAL.

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