# SDR CALA2026100720197

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 1, 2026
- Submitted: October 7, 2026
- Operation: Air carrier
- Aircraft: [N75435](https://openairdocs.org/aircraft/N75435), registered now
- Make and model: Boeing 737924ER
- Aircraft serial: 33529
- Aircraft time: 53,520 hours, 19,387 cycles
- Engine: Cfmint CFM567B27
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Module
- Part number: 90195002
- Part serial: 4911
- Condition: Faulted
- Location: Fire
- Part time: 53,493 hours, 19,374 cycles
- 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/CALA2026100720197

## Discrepancy

REJECTED TAKEOFF AT  110KIAS DUE TO FIRE WARNING.  PERFORMED ENG & APU FIRE DETECT CONTROL MODULE BITE IAW AMM 26-10-00-710-801. NO HELP,  PERFORMD A HIGH POWER ENG RUN. CREW STATED THAT ALL SIX FIRE INDICATIONS WENT OFF ON TAXI OUT TRAVELING AT 110KIAS, APU WAS NOT RUNNING BUT FIRE INDICATION AS WELL. STOPPED & SHUT DOWN BOTH ENGS. CREW & FIRE DEPART STATED THAT THERE WAS NO VISUAL IND OF FIRE OR SMOKE SEEN FROM ACFT.   INITIAL INSP OF FLT DECK, FOUND VISUAL INDS OF FIRE/OVERHEAT DETECT SYS ILLUMD ON P8-1 FIRE CONTROL PANEL.  BOTH CAPT & FO  P7, FIRE WARNING SWITCHES ILLUMD  & AURAL WARNINGS HEARD. REPLACED FIRE-OVERHEAT  MODULE M279 IAW AMM 26-10-01. BITE TEST OK & FIRE PANEL TEST OK. ACCOMP HI PWR ASSURANCE RUN TEST 5 AMM 71-00-00-700-813, NORMAL. CONFIG PACKS ON NO FIRE OR OVERHEAT DURING RUNS.

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