# SDR AALA202603245266

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 21, 2026
- Submitted: March 24, 2026
- Operation: Air carrier
- Aircraft: [N917AN](https://openairdocs.org/aircraft/N917AN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 29518
- Aircraft time: 70,910 hours, 29,650 cycles
- System (JASC): [2751 · Trailing Flap Position Indicating System](https://openairdocs.org/jasc/2751)
- Part: Transmitter
- Part number: 18173812
- Part serial: 11943
- Condition: Out Of Rig
- Location: Zone 500 Flap
- Part time: 9,154 hours, 4,371 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: J, S, F
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202603245266

## Discrepancy

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: AFTER TAKEOFF LEFT TRAILING EDGE FLAP INDICATOR SHOWING SLIGHTLY GREATER THAN THE UP POSITION; CYCLED FLAPS BACK TO 1 THEN UP STILL SHOWED THE SLIGHT ASYMMETRY ON THE INDICATOR. AIRCRAFT AIR INTERRUPTED BACK TO AND LANDED SAFELY AT JFK. FOUND LEFT FLAP POSITION TRANSMITTER OUT OF RANGE. REPLACED LEFT FLAP POSITION TRANSMITTER. PER MM 27-58-01. ACCOMPLISHED OPS CHECKS, ALL OPS CHECKS GOOD.

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