Service difficulty report · Vapor Barrier · Boeing 7377H4

Difficulty date
April 5, 2025
Submitted
May 6, 2025
Operation
Air carrier
Aircraft
N941WN
Make and model
Boeing 7377H4
Aircraft serial
36647
Aircraft time
50,295 hours, 30,868 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 BS 663 LBL 35 APROX AT MAIN WHEEL WELL COMPARTMENT 2025-243959<[01] TOOL USED CALIPER P/N: 500-197-30; S/N: B20189571; DUE DATE: 06-JUN-25.;[02] TOOL USED . HOT BONDER P/N HCS9200B-AV; S/N 18185781; DUE DATE 22-FEB-26.;[03] TOOL USED: SCALE: P/N: CR5200; S/N: 8343110765; DUE DATE: 24-MAR-26;[04] TOOL USED: SCALE P/N: CR5200 S/N: 8343110878 DUE DATE: 24 MAR 26;[05] TOOL USED ON STEP 12:ULTRASONIC FLAW DETECTOR P/N:EPOCH 650; S/N: 190984811; CAL DUE DATE: 24-FEB-26.;[06] REPAIRED VAPOR BARRIER LOCATED BS 663 LBL 35 APROX AT MAIN WHEEL WELL COMPARTMENT IAW B737-700 SRM 51-70-04-2R-10 REPAIR 10. SEE INDIVIDUAL SIGNOFF BELOW.;[07] REPAIRED VAPOR BARRIER LOCATED BS 663 LBL 35 APROX AT MAIN WHEEL WELL COMPARTMENT IAW B737-700 SRM 51-70-04-2R-10 REPAIR 10. SEE INDIVIDUAL SIGNOFF BELOW. RII.

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