# SDR CALA2025071406528

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 10, 2025
- Submitted: July 14, 2025
- Operation: Air carrier
- Aircraft: [N13720](https://openairdocs.org/aircraft/N13720), registered now
- Make and model: Boeing 737724
- Aircraft serial: 28939
- Aircraft time: 81,124 hours, 28,589 cycles
- System (JASC): [5270 · Door Warning System](https://openairdocs.org/jasc/5270)
- Part: Warning Message
- Condition: False Activation
- Location: Zone 800
- Stage of operation: TO
- 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/CALA2025071406528

## Discrepancy

ON TAKE OFF MASTER CAUTION DOOR ILLUMINATED  THEN WENT OUT. UNABLE TO DETERMINE WHICH DOOR TS SYSTEM REF FIM 52-10 TASK 801. PSEU LOGGED INTERMITTANT L1 DOOR FAULT, 52-71001, FUNCTION TESTED SYSTEM, REF SAME FIM, SYSTEM TESTS NORMAL.

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