# SDR Q2SA20210808453

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 8, 2021
- Submitted: August 12, 2021
- Operation: Air carrier
- Aircraft: [N5153A](https://openairdocs.org/aircraft/N5153A), registered now
- Make and model: Boeing 737-83N
- Registry model: [Boeing 737-83N](https://openairdocs.org/model/boeing-737-83n) (OpenAirDocs)
- Aircraft serial: 32884
- Aircraft time: 51,636 hours, 28,566 cycles
- System (JASC): [2781 · Leading Edge Slat Position Indicating System](https://openairdocs.org/jasc/2781)
- Part: Proximity Sensor
- Part number: 189929AEC
- Condition: Inoperative
- Location: Le Flap Sys
- Stage of operation: CR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/Q2SA20210808453

## Discrepancy

AIRCRAFT GROUNDED. LE FLAP TRANSIT LIGHT CAME ON AT FLIGHT LEVEL 400. RAN QRH AND LIGHT WENT OUT. REMOVED AND REPLACED LE FLAP 1 PROXIMITY SENSOR IAW B737 AMM 27-88-11-000-802/27-88-400-802. OPS CHECK GOOD.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.