Service difficulty report · Vapor Barrier · Boeing 7377H4

Difficulty date
October 5, 2022
Submitted
November 15, 2022
Operation
Air carrier
Aircraft
N953WN
Make and model
Boeing 7377H4
Aircraft serial
36668
Aircraft time
38,362 hours, 23,373 cycles
Part
Vapor Barrier
Condition
Cracked
Location
Bs 663
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

MLG RIGHT SIDE STA.663; VAPOR BARRIER WEB HAS 2EA CRACKS / [01] MEASUREMENTS;[02] CLEANED AND PREPARED CRACK DAMAGE AREA AS MARKED FOR REPAIR ON RIGHT SIDE VAPOR BARRIER; STOP DRILL CRACK; PERFORMED DRY OUT; FOUND NO WATER AS PER B737 SRM 51-70-04-2R-10;[03] VERIFIED STEP 1;[04] VERIFIED STEP 2. OK TO APPLY REPAIR.;[05] REPAIRED CRACK DAMAGE ON MLG RIGHT SIDE VAPOR BARRIER STA 663 WITH A PERMANENT REPAIR AS PER B737 SRM 51-70-04-2R-10; MATERIALS USED PO#1690463 AND PO#1774613;[06] PERFORMED TAP TEST ON REPAIRED AREA; FOUND NO DELAMINATION AS PER B737 NDT 51-05-01 SECTION 5;[07] VERIFIED STEP 5 AND 6;[08] LATE ENTRY.APPLIED TEFLON PAINT ON MLG RIGHT SIDE (VAPOR BARRIER WEB) REF: B 737 AMM 51-21-81-370-802;[09] VERIFIED STEP #8; TEFLON PAINT APPLIED.;[10] REPAIRED MLG R/H SIDE VAPOR BARRIER STA 663 WITH PERMANENT REPAIR REF SRM 51-70-04-2R-10; MATERIAL USED PO#1690463 AND PO#1774613; AND APPLIED TEFLON PAINT REF: AMM 51-21-81-370-802;[11] FINAL INSPECTION; R/H MLG VAPOR BARRIER REPAIRED; WORK ACCOMPLISHED.

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