Service difficulty report · Vapor Barrier · Boeing 7377H4

Difficulty date
June 7, 2022
Submitted
July 1, 2022
Operation
Air carrier
Aircraft
N255WN
Make and model
Boeing 7377H4
Aircraft serial
32513
Aircraft time
52,870 hours, 31,550 cycles
Part
Vapor Barrier
Condition
Cracked
Location
R/H Mlg
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

RH MLG WHEEL WELL VAPOR BARRIER HAS CRACK AT STA 663 RBL48-55 WL 160 / [01] REMOVED THE DAMAGED PLIES AND PREPARED AREA TO APPLY DRY OUT; DRILLED STOP HOLES AT THE ON THE CRACK ENDS; AT RH VAPOR BARRIER. REF B737-700 SRM 57-10-10-2R-2 PARAGRAPH 6 AND SRM 51-70-04-2R-10 PARAGRAPH4 B AND C.;[02] VERIFIED STEP #1;[03] ACCOMPLISHED DRY OUT PROCESS AT R/H VAPOR BARRIER WHEEL WELL AS PER B-737 SRM 51-70-04-2R-10;[04] VERIFIED STEP #3;[05] OK TO INSTALL REPAIR PER 51-70-04-2R-10 REPAIR 10;[06] REPAIRED CRACK DAMAGE ON RH MLG WHEEL WELL VAPOR BARRIER WITH A PERMANENT REPAIR AS PER B737 SRM 51-70-04-2R-10; MATERIALS USED PO#1690463 AND PO#1753794;[07] PERFORMED TAP TEST ON REPAIRED AREA OF VAPOR BARRIER ;FOUND NO DELAMINATION AS PER B737 NDT 51-05-01 SECTION 5;[08] VERIFIED STEPS #6 AND #7.;[09] OK TO APPLY PRIMER AND PAINT.;[10] APPLIED PRIMER AND TOP COAT AT RH MLG WHEEL VAPOR BARRIER STA 663 AS PER REF B737-700 AMM 51-21-72-370-804 AND AMM 51-21-81-370-802;[11] CERTIFIED;[12] VERIFIED STEP #10;[13] VERIFIED STEPS.

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