Service difficulty report · Vapor Barrier · Boeing 7377H4

Difficulty date
October 14, 2023
Submitted
October 27, 2023
Operation
Air carrier
Aircraft
N924WN
Make and model
Boeing 7377H4
Aircraft serial
36628
Aircraft time
50,130 hours, 30,347 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

CENTER WING REAR SPAR VAPOR BARRIER CRACKED; APPROXIMATELY 19 INCHES LONG (EXCEEDING SRM LENGTH LIMIT).<[01] APPLIED REPAIR AT L\H VAPOR BARRIER REAR SIDE PER B737 SRM 57-10-10-2R-2;SRM 51-70-04-2R-10 AND SRM 51-70-04-2R-0 PARAGRAPH 4.N.2 AND PARAGRAPH 4.L.7 MATERIAL USED RESIN EY 3804 PO# 2040614 FIBER GLASS PO#1690463 TOOL USED TEMPERATURE CONTROLLER ID 34748712 DUE DATE 06-07-24. RESTORED FINISH TO FORWARD AND AFT SIDES OF VAPOR BARRIER AS PER B 737 AMM 51-21-81-370-802 ANDD AMM 51-21-72-370-804;[02] RII. VERIFIED REPAIR AT L\H VAPOR BARRIER

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