SDR SWAA040237

Service difficulty report · Fire Detector · Boeing 7373H4

Difficulty date: January 24, 2004
Submitted: February 6, 2004
Operation: Air carrier
Aircraft: N331SW
Make and model: Boeing 7373H4
Aircraft serial: 23695
Aircraft time: 52,236 hours, 49,519 cycles
System (JASC): 2612 · Fire Detection
Part: Fire Detector
Part number: 896767
Condition: False Activation
Location: Apu
Stage of operation: CR
How discovered: O
Nature of condition: N
Precautionary procedure: A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DIVERSION, DURING CRUISE FLIGHT APU WARNING/BELL CAME ON WITH APU OFF. CW CHECKLIST, FIRED THE EXTINGUISHER, RED LIGHT WENT OUT. INSPECTED APU, HOUSING, AND TAILPIPE, FOUND NO EVIDENCE OF FIRE. REMOVED AND REPLACED THE FIRE DETECTOR PER MM.

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