Service difficulty report · Fire Warning · Boeing 7474H6

Difficulty date
October 8, 2026
Submitted
October 8, 2026
Operation
Air carrier
Aircraft
N740CK
Make and model
Boeing 7474H6
Aircraft serial
24405
Aircraft time
112,403 hours, 19,060 cycles
Part
Fire Warning
Condition
False Activation
Location
Zone 100
Stage of operation
LD
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

CARGO FIRE AFT. CORRECTIVE ACTION: NO SIGNS FIRE NOTED AND SUSPECTED ISSUE WAS DRY ICE CARRIED IAW CONDITIONAL INSPECTION B747 AMM 05-51-56, FIM 21-00 TASK 810 AND FIRE WARNING TEST. B747 AMM 26-11-00.

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