Service difficulty report · Fire Warning · Boeing 74745E

Difficulty date
July 26, 2015
Submitted
July 30, 2015
Operation
Air carrier
Aircraft
N473MC
Make and model
Boeing 74745E
Aircraft serial
27174
Aircraft time
91,849 hours, 16,190 cycles
Part
Fire Warning
Condition
False Activation
Location
Cargo Bay
Stage of operation
AP
How discovered
O
Nature of condition
N
Precautionary procedure
F

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

What was found

AFT CARGO FIRE DURING FINAL. RAN QRH PROCEDURES, CVR PULLED. REMOVED FOUR EACH FORWARD CARGO FIRE BOTTLES AMM 26-23-00. CARGO LOWER AFT COMPARTMENT FIRE SYSTEM IAW FIM 26-16 TASKS, DETERMINED TO BE A FALSE FIRE WARNING. NO EVIDENCE OF SMOKE OR FIRE FOUND. SMOKE DETECTOR SYSTEM CHECKED NORMAL IAW AMM 26-16-00. FIRE EXTINGUISHER SYSTEM CHECKED NORMAL IAW AMM 26-23-00.

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