Service difficulty report · Vapor Barrier · Boeing 7377BD

Difficulty date
September 20, 2024
Submitted
October 16, 2024
Operation
Air carrier
Aircraft
N7738A
Make and model
Boeing 7377BD
Aircraft serial
33930
Aircraft time
57,697 hours, 31,914 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 INDICATION FOUND ON VAPOR BARRIER LOWER WEB AT BS 663 AND LBL 50 CRACK LENGTH IS 5 INCH 2024-565593<[01] TOOL USED: CALIPER P/N: 500-197-30; S/N: A24028535; DUE DATE: 06-JUN-25.;[02] TOOL USED= HOT BONDER P/N: HCS9200B; S/N: 16122983; DUE DATE: 15-FEB-25.;[03] TOOL USED= SCALE P/N: CR5200; S/N: 8343150717; DUE DATE: 27-FEB-25;[04] TOOL USED ON STEP 11 UT EQUIPMENT P/N: EPOCH 650; S/N: 190776902; CAL DUE DATE: 04-OCT-24;[05] REPAIRED VAPOR BARRIER LOWER WEB AT BS 663 AND LBL 50 AS PER B737-700 SRM 51-70-04-2R-10 REPAIR 10. SEE INDIVIDUAL SIGNOFFS BELOW;[06] REPAIRED VAPOR BARRIER LOWER WEB AT BS 663 AND LBL 50 AS PER B737-700 SRM 51-70-04-2R-10 REPAIR 10. SEE INDIVIDUAL SIGNOFFS BELOW

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