# SDR SWAA2023020391859

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 15, 2023
- Submitted: February 3, 2023
- Operation: Air carrier
- Aircraft: [N8543Z](https://openairdocs.org/aircraft/N8543Z), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 63587
- Aircraft time: 18,094 hours, 8,916 cycles
- System (JASC): [2780 · Leading Edge Slat Control System](https://openairdocs.org/jasc/2780)
- Part: Sensor
- Part number: NOTENTERED
- Part serial: NOTENTERED
- Condition: Fault Message
- Location: Zn 500 Left Wing
- Stage of operation: AP
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2023020391859

## Discrepancy

LE TRANSIT LIGHT ON FORWAD PANEL REMAINS ILLUMINATED WITH FLAPS DOWN LE TRANSIT LIGHT ON FORWAD PANEL REMAINS ILLUMINATED WITH FLAPS DOWNF/C 27-81222<[01] FOUND FAULT 27-81222 AND REMOVED AND REPLACED THE #4 LEADING EDGE FLAP RETRACT PROX SENSOR PER AMM 27-88-11. THIS CLEARED THE FAULT

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