Service difficulty report · Vapor Barrier · Boeing 7377H4

Difficulty date
August 22, 2023
Submitted
September 26, 2023
Operation
Air carrier
Aircraft
N967WN
Make and model
Boeing 7377H4
Aircraft serial
36967
Aircraft time
38,813 hours, 23,854 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

R/H MLG WHEEL WELL VAPOR BARRIER HAS A CRACK AT STA 663.75 RBL 46 WL 150.<[01] PERFORMED DRY OUT ON R/H VAPOR BARRIER AS PER B737 SRM 57-10-10-2R-2; SRM 51-70-04-2R-10 PARAG. 4(B); AND SRM 51-70-04-2R-0 PARAG 4(D) EQUIPMENT USED HOT BONDER ID 160354 DUE DATE 02-16-24 AND VACUUM. GAGE ID 173239 DUE DATE 02-23-24.;[02] REMOVED DAMAGE PLIES; PREP DAMAGE AREAS FOR REPAIR; AND STOP DRILL CRACKS. AS PER B737 SRM 57-10-10-2R-2; SRM 51-70-04-2R-10 PARAG. 4(C); AND SRM 51-70-04-2R-0 PARAG 4(B; E);[03] APPLIED PERMANENT REPAIR AT R/H VAPOR BARRIER ON BOTH SIDES PER B737 SRM 57-10-10-2R-2 ; B737 SRM 51-70-04-2R-10 AND CURE REPAIR TO PARAGRAPH 4.N.2 EQUIPMENT USED TEMPERATURE CONTROL ID 160354 DUE DATE 02-16-24 AND VACUUM. GAGE ID 173239 DUE DATE 02-23-24. PAINTED INTERIOR AND EXTERIOR REPAIRED VAPOR BARRIER AS PER AMM 51-21-72-370-804 AND AMM 51-21-81-370-802.

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