Service difficulty report · Vapor Barrier · Boeing 7377BD

Difficulty date
December 9, 2024
Submitted
January 7, 2025
Operation
Air carrier
Aircraft
N7724A
Make and model
Boeing 7377BD
Aircraft serial
36725
Aircraft time
48,336 hours, 26,047 cycles
Part
Vapor Barrier
Condition
Cracked
Location
Zone 100
Stage of operation
IN
How discovered
V
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

CRACK ON VAPOR BARRIER LOCATED BS663.75 LBL 34 APROX. MAIN WHEEL WELL 2024-763426<[01] REPLACED VAPOR BARRIER LOC. BS 663 BTW LBL5 TO LBL75 MAIN WHEEL WELL IAW B737-700 SRM 51-40-02-0G-0 AND DWG 111A1000 ;SHEET 259; REV A; DWG 111A1001 SHEET 444; REV A. DRILLED OF VAPOR BARRIER; REMOVAL AND INSTALLATION OF STRUCTURAL PARTS WAS DOCUMENTED ON TTG8Q00XHUXW;[02] CORRECTED STEP 1:REPLACED VAPOR BARRIER LOC. BS 663 BTW LBL5 TO LBL75 MAIN WHEEL WELL IAW B737-700 SRM 51-40-02-0G-0 AND DWG 111A1000 ;SHEET 259; REV A; DWG 111A1001 SHEET 444; REV A. LENGTH OF CRACK IS: 8.000? TOOL USED CALIPER P/N:500-193-30;S/N: 0037624 DUE DATE: 15-JAN-25.DRILLED OF VAPOR BARRIER; REMOVAL AND INSTALLATION OF STRUCTURAL PARTS WAS DOCUMENTED ON TTG8Q00XHUXW;[03] REPLACED VAPOR BARRIER LOC. BS 663 BTW LBL5 TO LBL75 MAIN WHEEL WELL IAW B737-700 SRM 51-40-02-0G-0 AND DWG 111A1000 ;SHEET 259; REV A; DWG 111A1001 SHEET 444; REV A. LENGTH OF CRACK IS: 8.000? TOOL USED CALIPER P/N:500-193-30;S/N: 0037624 DUE DATE: 15-JAN-25.DRILLED OF VAPOR BARRIER; REMOVAL AND INSTALLATION OF STRUCTURAL PARTS WAS DOCUMENTED ON TTG8Q00XHUXW

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