Service difficulty report · Vapor Barrier · Boeing 7377H4

Difficulty date
April 25, 2025
Submitted
June 6, 2025
Operation
Air carrier
Aircraft
N222WN
Make and model
Boeing 7377H4
Aircraft serial
34290
Aircraft time
64,101 hours, 38,519 cycles
Part
Vapor Barrier
Condition
Cracked
Location
Zone 100
Stage of operation
IN
How discovered
U
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 AT BS 663.75 BETWEEN RBL 40 TO RBL 55 RH SIDE WHEEL WELL COMPARTMENT 2025-290824 <[01]. TOOL USED: CALIPER: P/N: 500-197-30; S/N: A23304055; DUE DATE: 10-NOV-25; [02] TOOL USED: SCALE P/N 91847 S/N AE-409317 DUE DATE: 29-JUN-25.; [03] TOOL USED: HOT BONDER P/N: HCS9000B-AV; S/N: 18185781; DUE DATE: 22-FEB-26.; [04] TOOL USED: SCALE P/N 91847 S/N AE-409319 DUE DATE: 29-SEP-25; [05] TOOL USED: ULTRASONIC FLAW DETECTOR; P/N: EPOCH 650; S/N: 201036102; DUE DATE: 25-OCT-25.; [06] REPAIRED VAPOR BARRIER LOCATED AT BS 663.75 BETWEEN RBL 40 TO RBL 55 RH SIDE WHEEL WELL COMPARTMENT IAW B737-700 SRM 51-70-04-2R-10 REPAIR 10. SEE INDIVIDUAL SIGN OFFS BELOW; [07] CORRECTIVE ACTION 6 WAS MODIFIED ADDED TOOL USED OF STEP 5: HOT BONDER P/N: HCS9000B; S/N: 18196119; DUE DATE: 13 JUN 25.<BR><BR>REPAIRED VAPOR BARRIER LOCATED AT BS 663.75 BETWEEN RBL 40 TO RBL 55 RH SIDE WHEEL WELL COMPARTMENT IAW B737-700 SRM 51-70-04-2R-10 REPAIR 10. SEE INDIVIDUAL SIGN OFFS BELOW; [08] CERTIFIED AS RII CORRECTIVE ACTION 7 CORRECTIVE ACTION 6 WAS MODIFIED ADDED TOOL USED OF STEP 5: HOT BONDER P/N: HCS9000B; S/N: 18196119; DUE DATE: 13 JUN 25. REPAIRED VAPOR BARRIER LOCATED AT BS 663.75 BETWEEN RBL 40 TO RBL 55 RH SIDE WHEEL WELL COMPARTMENT IAW B737-700 SRM 51-70-04-2R-10 REPAIR 10. SEE INDIVIDUAL SIGNS OFF BELOW.

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