Service difficulty report · Vapor Barrier · Boeing 7377H4

Difficulty date
July 13, 2023
Submitted
August 14, 2023
Operation
Air carrier
Aircraft
N446WN
Make and model
Boeing 7377H4
Aircraft serial
29842
Aircraft time
63,737 hours, 37,813 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

CUSTOMER REQUEST) CRACK ON VAPOR BARRIER LOCATED BS663.75 AND LBL 8 AT LOWER SURFACE 2023-413331<[01] TOOL USED CALIPER P/N 500-464 S/N B17030933 DUE DATE 17-OCT-23;[02] TOOL USED: HOTBONDER:HCS9200B-AV; S/N:18196021; DUE DATE: 24-JAN-24;[03] TOOL USED: SCALE P/N: CR5200; S/N: 8342514597; DUE DATE: 21-FEB-24.;[04] TOOL USED: HOTBONDER: P/N:HCS9200B-AV S/N:18175478 DUE DATE:24-SEP-23;[05] REPAIRED VAPOR BARRIER LOCATED BS663.75 AND LBL 8 AT LOWER SURFACE IAW B737-700 SRM 51-70-04-2R-10 REPAIR 10. SEE INDIVIDUAL SIGNOFFS BELOW.;[06] STEP 5 VERIFIED AND CORRECTIVE ACTION COMPLETED ITEM RII : REPAIRED VAPOR BARRIER LOCATED BS663.75 AND LBL 8 AT LOWER SURFACE IAW B737-700 SRM 51-70-04-2R-10 REPAIR 10. SEE INDIVIDUAL SIGNOFFS BELOW.

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