# SDR CALA2025052905089

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 27, 2025
- Submitted: May 29, 2025
- Operation: Air carrier
- Aircraft: [N37257](https://openairdocs.org/aircraft/N37257), registered now
- Make and model: Boeing 737-8
- Registry model: [Boeing 737-8](https://openairdocs.org/model/boeing-737-8) (OpenAirDocs)
- Aircraft serial: 43442
- Aircraft time: 13,201 hours, 4,605 cycles
- System (JASC): [5270 · Door Warning System](https://openairdocs.org/jasc/5270)
- Part: Proximity Sensor
- Part number: 189929
- Condition: Faulted
- Location: Zone 800
- Stage of operation: TO
- How discovered: O
- Nature of condition: N
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2025052905089

## Discrepancy

RTO FOR DOOR LIGHT TOMC REPORTS THE FAULT IS DOOR 1 LEFT BEFORE EACH DEPARTURE , VERIFY ASSOCIATED DOOR IS CLOSED AND LATCHED. DISPATCH DESK: 25   NAME: RS   DATE: 28-MAY-25- TOMC APPROVES MEL 5271E. COMPLIED WITH MEL *DM* REFERENCE FIM 52-10 TASK 801 FOR TROUBLESHOOTING AND WDM 52-71-11-1. MATERIALS UPDATED WITH SWITCH 1-899-29; 29-2762-3-0093, AS NEEDED. REPLACED L1 DOOR SENSOR S199 AS PER AMM 52-71-11-400-801.PERFORMED DOOR SENSOR TEST AND FOUND TO BE WORKING PROPERLY AT THIS TIME AS PER AMM 52-71-11-710-801.DDP C/W. AND MEL IS CLOSED PARTS USED:  29-2762-3-0093,QTY :1 ADD EMP:U229195

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