Service difficulty report · Vapor Barrier · Boeing 7377H4

Difficulty date
November 16, 2023
Submitted
January 5, 2024
Operation
Air carrier
Aircraft
N445WN
Make and model
Boeing 7377H4
Aircraft serial
29841
Aircraft time
64,695 hours, 38,824 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 WEB SUPPORT STIFFENER CRACKED AT LOWER END STA 663.75 RBL 25 MKD DOT<[01] REMOVED AND REPLACED SUPPORT STIFFENER AT CENTER WING REAR SPAR VAPOR BARRIER WEB STA 663.75 RBL 25 AS PER B 737-700 SRM 51-40-02-0G-0 AND DWG# 111A1000;[02] FINAL INSPECTION; VERIFIED STEP #1.

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