# SDR CALA2021102902000

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 28, 2021
- Submitted: October 29, 2021
- Operation: Air carrier
- Aircraft: [N37290](https://openairdocs.org/aircraft/N37290), registered now
- Make and model: Boeing 737824
- Aircraft serial: 31601
- Aircraft time: 55,069 hours, 19,649 cycles
- System (JASC): [2781 · Leading Edge Slat Position Indicating System](https://openairdocs.org/jasc/2781)
- Part: Sensor
- Condition: Dirty
- Location: Nr 7 Slat
- Stage of operation: DE
- How discovered: 9
- Nature of condition: J
- Precautionary procedure: B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2021102902000

## Discrepancy

LEADING EDGE SLATS TRANSIT LIGHT STAYS ON 7 LIGHT INITIALLY EXTINGUI SHED AFTER FLAP CYCLE PE R QRH. THEN LI GHT CAME O N STEADY MID FLIGHT. ACPD BITE TEST OF FSCU. FOUND NO EXISTING FAULTS. FLT LEG 0 SHOWED #7 SLAT INBD. "FAR" TARGET AT SENSOR S1007. CLEANED SENSOR AND CHECKED WIRING AND FOUND NO DEFECTS. CYCLED SLATS SEVERAL TIMES AND COULD NOT DUPLICATE PROBLEM. AIRCRAFT OK FOR CONTINUED SVC.

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