Service difficulty report · Vapor Barrier · Boeing 7377H4

Difficulty date
December 8, 2025
Submitted
January 14, 2026
Operation
Air carrier
Aircraft
N919WN
Make and model
Boeing 7377H4
Aircraft serial
36625
Aircraft time
56,768 hours, 34,183 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

PERFORM PERMANENT REPAIR ON LT BS 663 VAPOR BARRIER CRACKED AT LBL 45.64 TO LBL54.21. PERFORMED A PERMANENT REPAIR ON THE LT BS 663 VAPOR BARRIER IAW SRM 51-70-04-2R-10.

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