SDR I5EA2019010200000

Service difficulty report · Smoke Detector · Boeing 7374B7

Difficulty date: February 21, 2019
Submitted: March 1, 2019
Operation: Air carrier
Aircraft: N441US
Make and model: Boeing 7374B7
Aircraft serial: 24812
Aircraft time: 64,897 hours, 43,950 cycles
System (JASC): 2611 · Smoke Detection
Part: Smoke Detector
Condition: False Activation
Location: Cargo Bay
Stage of operation: CL
How discovered: O
Nature of condition: N
Precautionary procedure: F, A

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

What was found

DISCREPANCY: AFT CARGO FIRE WARNING AT 200-300 FEET AFTER TAKE OFF AND RETURNED TO THE FIELD. CORRECTIVE ACTION: REF LOGPAGES - 10242, 10243, 10244 - REPLACED FAULTY SMOKE DETECTOR, CARGO FIRE EXTINGUISHERS, DIVERTER VALVE ASSY, METERING VALVE ASSY, AND PERFORMED OPERATIONAL CHECKS IAW AMM 26-19-01. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE

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