# SDR AALA202205233698

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 22, 2022
- Submitted: May 23, 2022
- Operation: Air carrier
- Aircraft: [N342PM](https://openairdocs.org/aircraft/N342PM), registered now
- Make and model: Boeing 737
- Aircraft serial: 31269
- Aircraft time: 13,842 hours, 5,872 cycles
- System (JASC): [2781 · Leading Edge Slat Position Indicating System](https://openairdocs.org/jasc/2781)
- Part: Proximity Sensor
- Part number: 8020702
- Condition: Faulty
- Location: Zone 500 - Lh Wi
- Stage of operation: CL
- How discovered: V
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202205233698

## Discrepancy

AIRCRAFT WAS GROUNDED: AFTER TAKE OFF LEADING EDGE FLAP TRANSIT ILLUMINATED AT 400 FEET.  LEFT OUTBOARD LEADING EDGE DEVICE INDICATED AMBER. EMERGENCY DECLARED, RETURNED TO YYC LANDING SAFELY. REPLACED #1 LEADING EDGE SLAT PROXIMITY SENSOR PER AMM TASK 27-88-11-400-801. ACCOMPLISHED SATISFACTORY LEADING EDGE FLAP AND SLAT PROXIMITY SENSOR TEST PER AMM 27-88-11-700-80.

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