# SDR CALA2025121012018

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 7, 2025
- Submitted: December 11, 2025
- Operation: Air carrier
- Aircraft: [N37549](https://openairdocs.org/aircraft/N37549), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 64475
- Aircraft time: 9,775 hours, 3,291 cycles
- System (JASC): [5270 · Door Warning System](https://openairdocs.org/jasc/5270)
- Part: Sensor
- Condition: Out Of Adjust
- Location: Zone 800
- Stage of operation: NR
- 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/CALA2025121012018

## Discrepancy

REPORTING INTERMITTENT MMSG 52-71003, PSEU AFT SERVICE DOOR SWITCH SENSOR IS TARGET FAR IN AIR.  REQUEST MAINTENANCE IAW FIM TASK 52-10-00-810-802,  ADJUSTED AFT DOOR S200 INDICATION SENSOR IAW AMM 52-71-11-820-801, OPS CHECKED GOOD. NO FUTHER DEFECTS NOTED.

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