Service difficulty report · Vapor Barrier · Boeing 7377H4

Difficulty date
September 4, 2023
Submitted
October 16, 2023
Operation
Air carrier
Aircraft
N448WN
Make and model
Boeing 7377H4
Aircraft serial
33721
Aircraft time
64,383 hours, 38,369 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 VAPOR BARRIER LOCATED AT BS663; WL152 AND LBL15 MAIN WHEEL WELL 2023-569362<[01] TOOL USED: CALIPER P/N: 500-196-30; S/N: A20227391; DUE DATE: 11-OCT-23.;[02] TOOL USED: HOT BONDER PN: HCS9200B; SN: 16122983; DUE DATE: 24-JAN-24.;[03] TOOL USED SCALE P/N:CL5000; S/N: AE-408751; DUE DATE 12-APR-24;[04] TOOL USED HOTBONDER P/N.HCS9200B S/N.16122983 DUE DATE 24-JAN-24;[05] TOOL USED SCALE P/N CL5000 S/N AE-408751 DUE DATE 12-APR-24.;[06] TOOL USED: HOT BONDER P/N: HCS9200B S/N:16122983 DUE DATE: 24- JAN-24;[07] ULTRASONIC FLAW DETECTOR P/N: EPOCH 650; S/N: 190984811; DUE DATE: 24-JAN-24.;[08] REPAIRED VAPOR BARRIER LOCATED AT BS663; WL152 AND LBL15 MAIN WHEEL WELL IAW B737-700 SRM 51-70-04-2R-10 REPAIR 10;[09] CORRECTED STEP 8.REPAIRED VAPOR BARRIER LOCATED AT BS663; WL152 AND LBL15 MAIN WHEEL WELL IAW B737-700 SRM 51-70-04-2R-10 REPAIR 10 SEE INDIVIDUAL SIGN OFF BELOW;[10] CORRECTIVE ACTION STEP 9 CERTIFIED RII

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