Service difficulty report · Skin Panel · Boeing 7377H4

Difficulty date
October 1, 2022
Submitted
October 19, 2022
Operation
Air carrier
Aircraft
N786SW
Make and model
Boeing 7377H4
Aircraft serial
29811
Aircraft time
70,923 hours, 41,833 cycles
Part
Skin Panel
Part number
661BB
Condition
Cracked
Location
Zn 600 Right Win
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 - INNER SKIN HAS CRACKS AND BULGING AROUND NUMEROUS FASTENER HOLES AS MARKED. 124-023 / [01] CLEANED AND PREPARED DAMAGE FASTENER HOLES FOR REPAIR; PER FORMED DRY OUT FOUND NO WATER AS PER B737 SRM 51-70-04-2R-9;[02] REPAIRED DAMAGE FASTENER HOLES AS MARKED ON PANEL 661BB WITH A PERMANENT REPAIR AS PER B737 SRM 51-70-04-2R-9B MATERIALS USED PO#1690463 AND PO#1774613;[03] PERFORMED TAP TEST ON REPAIRED AREA; FOUND NO DELAMINATION AS PER B737 NDT 51-05-01 SECTION 5;[04] MEASUREMENTS;[05] VERIFIED 1 TO 4

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