Service difficulty report · Panel · Boeing 7377H4

Difficulty date
June 30, 2022
Submitted
July 28, 2022
Operation
Air carrier
Aircraft
N485WN
Make and model
Boeing 7377H4
Aircraft serial
32473
Aircraft time
60,155 hours, 35,804 cycles
Part
Panel
Condition
Cracked
Location
R/H 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 WING LOWER MID SPAN T/E PANEL 661BB AT SEAL ATTACHMENT FLANGE HAS MULTIPLE FASTENER HOLES BULGING SOME WITH CRACKS AS VIEWED FROM INNER SKIN. / [01] PREPARED AREA FOR REPAIR MULTIPLE FASTERNER HOLES CRACKS AT RT WING LOWER PANEL #661BB AS PER B737 SRM 51-70-06-2R-9;[02] VERIFIED STEP 1;[03] OK TO INSTALL REPAIR;[04] REPAIRED MULTIPLE FASTERNER HOLES AT RT WING LOWER PANEL #661BB AS PER B737 SRM 51-70-06-2R-9 MATERIAL USED RESIN PO#1740319 FIBERGLASS PO#1765618;[05] VERIFIED STEP 4. REPAIR OF HOLES.;[06] LOCATED AND DRILLED RT WING LOWER MID SPAN T/E PANEL # 661BB PER B737-700 SRM 51-40-05-0G-G.;[07] VERIFIED 6;[08] PERFORMED COUNTERSINK TO FASTENER HOLES ON RT WING LOWER MID SPAN T/E PANEL # 661BB PER B737-700 SRM 51-40-08-0G-0;[09] VERIFIED 8. OK TO APPLY FINISH;[10] APPLIED PRIMER AND TOP COAT TO RT WING LOWER MID SPAN T/E PANEL # 661BB PER B737-700 AMM 51-21-72-370-804 AND AMM 51-21-73-370-804.;[11] VERIFIED 10

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