Service difficulty report · Doubler · Boeing 7377H4

Difficulty date
July 22, 2022
Submitted
August 12, 2022
Operation
Air carrier
Aircraft
N260WN
Make and model
Boeing 7377H4
Aircraft serial
32518
Aircraft time
52,920 hours, 31,399 cycles
Part
Doubler
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

RT VAPOR BARRIER WEB DOUBLER IS CRACKED; BS 663; WL 170; BETWEEN RBL 6.15 & RBL 31.83.(P/N: 111A1511-24). / [01] FABRICATED RT VAPOR BARRIER DOUBLER (P/N: 111A1511-24) AS PER DWG. 111A1511. MAT. USED: 2024-T4 0.040'.;[02] LOCATED & DRILLED NEW DOUBLER AS PER B737-7 SRM 51-40-05.;[03] VERIFIED STEPS 1 AND 2.;[04] OK TO TREAT AND PRIME.;[05] TREATED & PRIME NEW DOUBLER AS PER B737-7 SRM 51-20-01 & AMM 51-21-72-370-804.;[06] VERIFIED STEP 5;[07] TASK C/W;[08] TASK C/W

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