# SDR DALA2025050503442

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 3, 2025
- Submitted: May 5, 2025
- Operation: Air carrier
- Aircraft: [N963DZ](https://openairdocs.org/aircraft/N963DZ), registered now
- Make and model: Boeing 737-9GPER
- Registry model: [Boeing 737-9GPER](https://openairdocs.org/model/boeing-737-9gper) (OpenAirDocs)
- Aircraft serial: 38301
- Aircraft time: 20,564 hours, 15,053 cycles
- System (JASC): [2781 · Leading Edge Slat Position Indicating System](https://openairdocs.org/jasc/2781)
- Part: Sensor
- Condition: Faulted
- Location: Slat Sys
- Stage of operation: DE
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2025050503442

## Discrepancy

SHIP 3963 -MISC/DE- DECLARED AN EMERGENCY DUE TO FLAP/SLAT DISAGREE. CORRECTIVE ACTION: FOUND S174 LEADING EDGE FLAP RETRACT SENSOR 4 NOT CHANGING STATE. REPLACED SAME. OPS CHECK GOOD

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