SDR SWAA115440

Service difficulty report · Smoke Detector · Boeing 7373H4

Difficulty date: July 25, 2011
Submitted: July 27, 2011
Operation: Air carrier
Aircraft: N335SW
Make and model: Boeing 7373H4
Aircraft serial: 23939
Aircraft time: 75,069 hours, 66,648 cycles
System (JASC): 2611 · Smoke Detection
Part: Smoke Detector
Part number: 100064901
Condition: Faulty
Location: Cargo Bay
Stage of operation: UK
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 - AT 37,000 FEET AFT CARGO FIRE LIGHT ILLUMINATED. AFTER CLEARING MASTER FIRE WARNING, LIGHT WENT OUT, SYSTEM TEST OK. UPON DISCHARGING FIRE FIRE BOTTLES, AFT CARGO FIRE LIGHT RE-ILLUMINATED, THEN WHEN OUT. INSPECTED FWD AND AFT CARGO COMPARTMENTS, NO SIGNS OF FIRE. REMOVED AND REPLACED AFT CARGO SMOKE DETECTORS PER MM.

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