Service difficulty report · Barrier · Boeing 7377H4

Difficulty date
March 14, 2023
Submitted
April 20, 2023
Operation
Air carrier
Aircraft
N435WN
Make and model
Boeing 7377H4
Aircraft serial
32455
Aircraft time
66,297 hours, 39,595 cycles
Part
Barrier
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: R/H STA-663 VAPOR BARRIER CRACKED.<[01] MEASUREMENTS;[02] CLEANED AND PREPARED CRACK DAMAGE AREAS FOR REPAIR; STOP DRILL ALL CRACKS ;PERFORMED DRY OUT; FOUND NO WATER AS PER B737 SRM 51-70-04-2R-10;[03] REPAIRED R/H STA -663 VAPOR BARRIER AS PER B737 SRM 51-70-04-2R-10 MATERIAL USED PO.1800550 AND PO.1690463;[04] VERIFIED STEP 3.;[05] SUMMARY: REPAIRED R/H STA -663 VAPOR BARRIER AS PER B737 SRM 51-70-04-2R-10 MATERIAL USED PO.1800550 AND PO.1690463 & APPLIED TOP COAT TO VAPOR BARRIOR STA 663 AS PER AMM 51-21-73-370-804;[06] VERIFIED ALL STEPS

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