# SDR CALA2026092419800

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 21, 2026
- Submitted: September 25, 2026
- Operation: Air carrier
- Aircraft: [N76532](https://openairdocs.org/aircraft/N76532), registered now
- Make and model: Boeing 737824
- Aircraft serial: 62749
- Aircraft time: 31,869 hours, 12,119 cycles
- Engine: Cfmint CFM567B27
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Module
- Part number: 6937307300
- Part serial: D04018
- Condition: Faulted
- Location: Zone 200
- Part time: 69,872 hours, 25,616 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026092419800

## Discrepancy

ON TAKEOFF ROLL ENCOUNTERED AN OVHT/DET LIGHT AS WELL AS A FIRE WARN LIGHT AND BELL. ALL OF THE LIGHTS ILLUMINATED JUST LIKE WHEN THE OVHT FIRE TEST. WHEEL WELL LIGHT. ENGINE 1 ENGINE 2 AND APU FIRE BOTTLE DISCHARGE LIGHTS. ENGINE 1 AND EMGINE 2 OVERHEAT LIGHTS. LIGHTS REMAINED ON UNTIL FIRE/OVHT TEST, THEN RESET. PICTURES ADDED RPL ENG AND APU FIRE CONTROL PANEL AND REINSERTED CB'S. ONLY, NEED TO PERFORM TESTS. REF MM TASK 26-00-01-400-801.  PERFORMED ALL NECESSARY TESTS REF AMM TASK 26-00-01-400-801. ALL TEST PASS. ACFT OK FOR SVC.

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