Service difficulty report · Vapor Barrier · Boeing 7378H4

Difficulty date
July 28, 2026
Submitted
September 1, 2026
Operation
Air carrier
Aircraft
N8546V
Make and model
Boeing 7378H4
Aircraft serial
63574
Aircraft time
29,792 hours, 15,138 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

BS 663 VAPOR BARRIER ATTACH ANGLE APPROXIMATELY RBL 34 CRACKED AT O/B FASTENER. SEE ATTACHMENT FOR PIC. REPAIRED PER EA M-26-157-01481 (REPAIR OF RH B.S. 663 VAPOR BARRIER UPPER ATTACH L-ANGLE). INSPECTED WORK PERFORMED

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