Service difficulty report · Vapor Barrier · Boeing 7377H4

Difficulty date
August 14, 2026
Submitted
September 22, 2026
Operation
Air carrier
Aircraft
N259WN
Make and model
Boeing 7377H4
Aircraft serial
35554
Aircraft time
65,221 hours, 39,507 cycles
Part
Vapor Barrier
Condition
Cracked
Location
Zone 100
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

CRACK VAPOR BARRIER BS 663.75 AND RBL 32 AT MAIN WHEEL WELL COMPARTMENT. REPAIRED VAPOR BARRIER BS 663.75 AND RBL 32 AT MAIN WHEEL WELL COMPARTMENT IAW B737-700 SRM 51-70-04-2R-10 REPAIR 10.

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