SDR UIEA2020123102634

Service difficulty report · Smoke Warning · Boeing 74747UF

Difficulty date: December 31, 2020
Submitted: January 4, 2021
Operation: Air carrier
Aircraft: N499MC
Make and model: Boeing 74747UF
Aircraft serial: 29260
Aircraft time: 85,141 hours, 14,550 cycles
System (JASC): 2612 · Fire Detection
Part: Smoke Warning
Condition: False Activation
Location: Main Deck Cargo
Stage of operation: CR
How discovered: O
Nature of condition: N
Precautionary procedure: O

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

What was found

MAIN DECK CARGO LOOP 12B, 11B MULTIPLE MD CARGO LOOP A STATUS MESSAGE PRODUCED WITH CGO DET 12 MAIN DECK MAIN DECK FIRE IND CAME AND EXTINGUISHED, NO FIRE PRESENT. CLEANED, INSPECTED AND TESTED ALL AFFECTED SMOKE DETECTORS, IAW AMM 26-14-00. OPERATIONS CHECK GOOD.

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