Service difficulty report · Vapor Barrier · Boeing 7377H4

Difficulty date
January 26, 2023
Submitted
February 2, 2023
Operation
Air carrier
Aircraft
N227WN
Make and model
Boeing 7377H4
Aircraft serial
34450
Aircraft time
57,729 hours, 34,495 cycles
Part
Vapor Barrier
Part number
NOTENTERED
Part serial
NOTENTERED
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

DOT A24-10 LH VAPOR BARRIER CRACKED AT STATION 663; LBL 28 JUST OUTBOARD OF WIRE FEED THROUGH.<[01] EVALUATED CRACK ON L/H 663 VAPOR BARRIER. FOUND AN 18' LONG CRACK AT LBL 25.00 TO BE REPAIRABLE. IAW B737-700 SRM 57-10-10-2R-2 PAR 1A& NOTE. CLEAN AND PREP AREA FOR REPAIR. IAW B737-700 SRM 51-70-04-2R-10 PAR 4A-C. VERIFY MATERIALS AS: BMS 8-301 (A148401); BMS 9-3 (A150508). IAW B737-700 SRM 51-70-04-2R -0 REP GEN TABLE 203. NEED OK TO BOND.;[02] VERIFIED ITEM 1<BR>OK TO BOND;[03] BONDED REPAIR. IAW B737-700 SRM 51-70-04-2R-10 PAR 4 D-G. AAR OVEN 30347 200DEG.;[04] VERIFIED STEP 3;[05] OK TO PRIME AND PAINT REPAIR AREA;[06] APPLIED FINISH TO THE REPAIR AREA IAW SRM 51-70-04-2R-0;[07] VEVERIFIED STEP 6<BR>AUDIT CW

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