Service difficulty report · Vapor Barrier · Boeing 737*

Difficulty date
September 14, 2021
Submitted
November 8, 2021
Operation
Air carrier
Aircraft
N783SW
Make and model
Boeing 737*
Aircraft serial
29809
Aircraft time
68,060 hours, 40,258 cycles
Part
Vapor Barrier
Condition
Cracked
Location
Center Wing
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

R/H VAPOR BARRIER STA.663; RBL 6-10; CRACKED I/B SIDE ; / [01] MEASUREMENTS; [02] STOP DRILL AT END CRACK ON VAPOR BARRIER PER B737 51-10-02; [03] PREPARED DAMAGE AREA AT R\H VAPOR BARRIER TO APPLY DRY OUT PROCESS PER B737 SRM 51-70-04-2R0 PARAGRAPH 4.D; [04] VERIFIED STEPS 1;2 AND 3; [05] OK YO APPLY DRY OUT PROCESS; [06] APPLIED DRY PROCESS AT R/H VAPOR BARRIER ON REPAIR AREA PER B737 SRM 51-70-04-2R-0 PARAGRAPH 4.D AND PREPARED AREA FOR APPLY REPAIR PER B737SRM 51-70-04-2R-10 PARAGRAPH 4.E; [07] VERIFIED STEP 6 RII; [08] OK TO INSTALL REPAIRB RII; [09] REPAIRED DAMAGED AREA AT R\H BARRIER ON STA663 PER B737 SRM 51-70-04-2R-10 MATERIAL USED EY 3804 PO#1731939;<BR>FIBER GLASS PO#1690463 AND PERFORMED TAP TEST ON REPAIR AREA NO DELAMINATION PER B737 NTM PART 51-05-01; [10] VERIFIED STEP 9; [11] OK TO PAINT VAPOR BARRIER; [12] APPLIED TOP COAT TO R/H VAPOR BARRIER REF. B737-7 AMM 51-21-73-370-803; [13] REPAIRED R/H VAPOR BARRIER STA. 663; AND APPLIED TOP COAT REF. USED B737-7 SRM 51-70-04-2R-0; & AMM 51-21-73-370-803; [14] VERIFIED REPAIR