Service difficulty report · Vapor Barrier · Boeing 7377H4

Difficulty date
June 28, 2021
Submitted
July 15, 2021
Operation
Air carrier
Aircraft
N297WN
Make and model
Boeing 7377H4
Aircraft serial
32542
Aircraft time
46,041 hours, 27,557 cycles
Part
Vapor Barrier
Condition
Cracked
Location
L/H Mlg W/W
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

LEFT WHEEL WELL STA 663.75 VAPOR BARRIER CRACKED APROX. 6' AT LOWER SURFACE LBL 37' ; / [01] PERFORMED TAP TEST A VISUAL INSPECTION AT VAPOR BARRIER ON LOWER SURFACE LBL37' FOUND CRACKED 12' AND WATER PER B737NTM 51-05-01; [02] STOP DRILL ON THE CRACKED AND PREPARED AREA FOR DRY OUT PROCESS PERB737 51-70-04-2R PARAGRAPH (4.D); [03] VERIFIED STEPS # 1 &2; [04] MEASUREMENTS; [05] PREPARED DAMAGED AREA FOR APPLY REPAIR AT L\W VAPOR BARRIER ON LOWER SURFACE PER B737SRM 51-70-04-2R-0 PARAGRAPH (4.E); [06] VERIFIED STEP 4 & 5; [07] OK TO INSTALL REPAIR; [08] REPAIRED LEFT WHEEL VAPOR BARRIER AS PER B737SRM 51-70-04-2R-0.MATERIAL USED P.O: 1707887 AND P.O:1480720; [09] VERIFIED REPAIR APPLICATION PER SRM 51-70-04-2R; [10] APPLIED PRIMER AND TOP COAT TO VAPOR BARRIER AS REQUIRED PER B737-700 AMM 51-21-72-370-804 AND 51-21-73-370-803.; [11] PAINT AND TOP COAT OK; [12] NOTE STEPS 2;5;7; 8; AND 9 RII; [13] NOTE STEPS 2;5;7;8 AND 9 RII

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