Service difficulty report · Window · Boeing 7379

Difficulty date
February 14, 2026
Submitted
February 17, 2026
Operation
Air carrier
Aircraft
N77543
Make and model
Boeing 7379
Aircraft serial
64474
Aircraft time
11,269 hours, 3,740 cycles
Part
Window
Condition
Leaking
Location
Zone 200
Stage of operation
CL
How discovered
O
Nature of condition
O
Precautionary procedure
A

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

What was found

PRESSURE LEAK ON CA SIDE WINDOW. LOUD AT 4.5 PSID FOUND DRAIN HOE IN BETWEEN WINDOW AND JAM. PROBABLE CAUSE OF LEAK. CORRECTED HOSE PRESSURIZED AND FOUND NO LEAKS IAW AMM 05-51-91-790-801.

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