Service difficulty report · Coalescer Bag · Boeing 7377H4

Difficulty date
October 8, 2025
Submitted
October 9, 2025
Operation
Air carrier
Aircraft
N283WN
Make and model
Boeing 7377H4
Aircraft serial
36610
Aircraft time
59,518 hours, 35,996 cycles
Part
Coalescer Bag
Condition
Dirty
Location
Zone 100
Stage of operation
CL
How discovered
O
Nature of condition
B
Precautionary procedure
O

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

What was found

PUNGENT DIRTY SOCK SMELL IN COCKPIT DURING CLIMB AND DECENT. R & R CABIN AIR FILTER IAW AMM 21-25-01, UPON FURTHER EVALUATION; FOUND LT COALESCER BAG VERY DIRTY. R & R LT AND RT WATER SEPARATOR COALESCER BAGS IAW AMM 21-51-05. PERFORMED ENG RUN ON BOTH ENGINES. CYCLED PACKS THROUGH HOT & COLD SETTINGS. NO DEFECTS NOTED.

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