Service difficulty report · Vapor Barrier · Boeing 7377H4

Difficulty date
September 20, 2023
Submitted
October 12, 2023
Operation
Air carrier
Aircraft
N421LV
Make and model
Boeing 7377H4
Aircraft serial
32452
Aircraft time
71,597 hours, 42,416 cycles
Part
Vapor Barrier
Part number
UNKNOWN
Condition
Cracked
Location
Zn 100 Fus Lower
Stage of operation
IN
How discovered
9
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

CRACKED LOWER L/H COMPOSITE BULKHEAD AT BS663 LBL33 WL163.<[01] REMOVED VAPOR BARRIER AND INSTALLED NEW VAPOR BARRIER AS PER SRM 51-40-02 AND D DWG 111A7000; DWG 111A1151; DWG 111A1001 AND DWG 111A1000.;[02] VERIFIED.<BR>VERIFIED MEASUREMENTS.

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