Service difficulty report · Barrier · Boeing 7377H4

Difficulty date
September 26, 2022
Submitted
October 17, 2022
Operation
Air carrier
Aircraft
N266WN
Make and model
Boeing 7377H4
Aircraft serial
32523
Aircraft time
52,718 hours, 31,500 cycles
Part
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

BS663 VAPOR BARRIER CRACKED AT LBL12 WL 152 / [01] IDENTIFIED PART MATERIAL IAW SRM 57-10-10-0I-2 FIG 2 TABLE 2 ITEM 4.<BR>DAMAGE WAS FOUND TO BE OUT OF ALLOWABLE LIMITS IAW SRM 57-10-10-1A-2 PARA 4.D(1).<BR>DAMAGE WILL BE REPAIRED IAW SRM 51-70-04-2R-10 PER SRM 57-10-10-2R-2 PARA 1.C(NOTE).<BR>REMOVED DAMAGE AND PREPARED REPAIR AREA IAW SRM 51-70-04-2R-10 PARA 4A-C.;[06] FABRICATED REPAIR PLIES FROM BMS 9-3H2 LOT#1502472-1 IAW SRM 51-70-04-2R-10 PARA 4.D. OK TO INSTALL.;[07] INSPECTED AND VERIFIED CORRECTIVE ACTION 6. OKAY TO INSTALL REPAIR PLIES PER SRM 51-70-04-2R-10.;[08] USING BMS9-3 H2 GLASS LOT 1502472-1 & BMS8-301 CL 1/EA9390 RESIN LOT JH1GAA7833 LAID UP THE REPAIR; VACUUM BAGGED LEAK CHECKED ;THEN SET TO CURE IAW SRM 51-70-04-2R-10 PARA 4. D. STEPS D & E.;[09] VERIFIED CORRECTIVE ACTION 8;[10] CURED PLIES; USING HOTBONDER ID: NCX000623 DUE: 06/2023 UNBAGGED AND LIGHTLY SANDED IAW SRM 51-70-04-2R-10 PARAGRAPH 4.F AND H.;[11] VERIFIED CORRECTIVE ACTION ITEM 10.;[12] REQUESTING POST CURE NDI OF REPAIR IAW SRM 51-70-04-2R-10 PAR. 4.G.;[13] UT INSPECTED REPAIR PER NDTM PART 4; 51-00-02. NO DISBONDS NOTED.<BR>EPOCH 650 CAL ID: ATS2341 S/N: 190848104 DUE: 06/2023;[14] REFINISHED REPAIR ARE IAW SRM 51-70-04-2R-10 PARAGRAPH 4.H;[15] VERIFIED CORRECTIVE ACTION ITEM 14. REPAIR COMPLETE.;[16] VERIFIED FAULT COMPLETE.

More about the Boeing 737-7H4