Service difficulty report · Flange · Boeing 7377H4

Difficulty date
April 5, 2026
Submitted
April 7, 2026
Operation
Air carrier
Aircraft
N442WN
Make and model
Boeing 7377H4
Aircraft serial
32459
Aircraft time
74,000 hours, 44,314 cycles
Part
Flange
Condition
Broken
Location
Zone 100
Stage of operation
CR
How discovered
O
Nature of condition
B
Precautionary procedure
A

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

What was found

CARGO FIRE DISCH LIGHT ILLUMINATED AT CRUISE FLIGHT ATTENDANTS REPORTED ELECTRICAL SMELL IN CABIN DISCH LIGHT EXTINGUISHED AFTER DESCENT. PERFORMED SMOKE OR FUMES IN THE CABIN. CONDITIONAL INSPECTION PER FIM 21-00 TASK 806. NO EVIDENCE OF OVERHEATING OR SMELLS FOUND. PERFORMED FIM 21-00 TASK 806 FOUND LEFT MIX CHAMBER FLANGE BROKEN. REMOVED AND REPLACED MIX CHAMBER PER AMM 21-21-02. OPS/LEAK CHECK GOOD

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