# SDR CALA2026092419798

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 23, 2026
- Submitted: September 25, 2026
- Operation: Air carrier
- Aircraft: [N77296](https://openairdocs.org/aircraft/N77296), registered now
- Make and model: Boeing 737824
- Aircraft serial: 34002
- Aircraft time: 60,206 hours, 22,195 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Detector
- Condition: False Activation
- Location: Zone 100
- Stage of operation: CR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: B, F, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026092419798

## Discrepancy

AFT CARGO FIRE AT FL350. RAN QRC AND NNC. BELL WENT OFF 10-12 TI MES EVEN AFTER DISCHARGE.   PERFORMED CEU BITE PROCEDURE IAW FIM 26-16 TASK 801.  NO FAULTS NOTED.  PLACING AFT LOWER CARGO COMPARTMENT FIRE DETECTION/SUPPRESSION SYSTEM ON MEL 2619C AS A PRECAUTION.   REPLACED ALL AFT CARGO SMOKE DETECTORS AS A PRECAUTION.  ALL INSTALLATION AND BITE TESTS GOOD. MEL REMOVED. DDP CW.

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