Service difficulty report · Vapor Barrier · Boeing 7377H4

Difficulty date
November 21, 2021
Submitted
December 27, 2021
Operation
Air carrier
Aircraft
N455WN
Make and model
Boeing 7377H4
Aircraft serial
32462
Aircraft time
58,698 hours, 34,771 cycles
Part
Vapor Barrier
Condition
Cracked
Location
Wheel Well
Stage of operation
UK
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

L/H B/S 663 MAIN WHEEL WELL VAPOR BARRIER BULKHEAD PRESSURE DECK WEB IS CRACKED AT LBL 36. (MARKED) ; / [01] REMOVED L/H B/S 663 MAIN WHEEL WELL VAPOR BARRIER BULKHEAD PRESSURE DECK WEB BTW LBL 6.13 TO LBL 72 IAW SRM 51-40-02; [14] INSTALLED NEW LH BS 663 MAIN WHEEL WELL VAPOR BARRIER BULKHEAD PRESSURE DECK WEB PER SRM 51-40-02; DWG 111A1001; DWG 144A7100; DWG 111A1000; [15] COMPLETED STEP 1; 8; [16] VERIFIED CORRECTIVE ACTION 14-15; COMPLETED STEP 1 AND STEP 8; [17] APPLIED CAPSEAL AT FASTENERS VAPOR BARRIER BS 663 BETWEEN LBL6 TO LBL 70 AFT SIDE PER AMM 51-31-00-390-805; [18] VERIFIED CORRECTIVE ACTION STEP 17.; [19] VERIFIED STEPS 3 THROUGH 7 COMPLETE.; [20] VERIFIED JOB COMPLETE

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