Service difficulty report · Doubler · Boeing 7377H4

Difficulty date
March 23, 2021
Submitted
April 7, 2021
Operation
Air carrier
Aircraft
N212WN
Make and model
Boeing 7377H4
Aircraft serial
32485
Aircraft time
53,993 hours, 32,250 cycles
Part
Doubler
Condition
Cracked
Location
Vapor Barrier
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

FOUND EXTERNAL DOUBLER AT LT HAND VAPOR BARRIER CRACK AT STA 663.5 ; LBL 20 ; WL 148 . / FABRICATED EXTERNAL DOUBLER FOR LT HAND VAPORT BARRIER AS PER DRAWING REF 111A1511-23. LOCATED AND DRILLED PART AS PER SRM B737-7 51-40-05-0G-0. TREATED AND PRIMED DOUBLER AS PER AMM 737-7 51-21-41-701 AND 51-21-72-370-803. INSTLLATION WILL BE ACCOMPLISHED ON N/R W208792 REF 2017142/1000/0040

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