Service difficulty report · Vapor Barrier · Boeing 7377H4

Difficulty date
June 15, 2023
Submitted
August 14, 2023
Operation
Air carrier
Aircraft
N444WN
Make and model
Boeing 7377H4
Aircraft serial
29839
Aircraft time
66,457 hours, 39,411 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

LOWER FUSELAGE CENTER WING BULKHEAD L/H VAPOR BARRIER UPPER CHORD ATTACHED ANGLE CRACKED @ LBL 5 STA 663.75 MKD DOT<[01] ACCOMPLISHED CAP SEAL AND FILLET SEAL ARROUND REPAIR EDGES AS PER B737-700 SRM 57-10-10-2R-5.;[02] REPAIRED L/H VAPOR BARRIER UPPER ATTACH ANGLE AT STA 663.75 LBL5 PER B737-700 SRM 57-10-10-2R-5 FIGURE 202 DETAIL B.;[03] CERTIFIED ANGLE REPAIR WORK STEPS PERFOMED AT CENTER WING VAPOR BARRIER UPPER CHORD STA 663.75 LBL 5 PER B737-700 SRM 57-10-10-2R-5 FIGURE 202 DETAIL B.

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