Service difficulty report · Skin · Boeing 777FS2

Difficulty date
September 5, 2022
Submitted
September 10, 2022
Operation
Air carrier
Aircraft
N850FD
Make and model
Boeing 777FS2
Aircraft serial
37721
Aircraft time
50,915 hours, 8,514 cycles
Part
Skin
Condition
Damaged
Location
Zone 100
Stage of operation
IN
How discovered
V
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

DURING PERFORMING E G-5710-E0366409 P 7 STEP7.A.(10), FOUND 02 EA HOLES OVERSIZED (DIAMETER:0.6245") ON THE SKIN AND LONGERON(P/N:140W9255Y407) AT STA993-1035 STGR 35-37 LH. THE BOEING DRAWING 675W0002 SH7 VIEW 2B6-7 CALL OUT THE DIAMETER 0.5620" . THE 02 EA EXISTING HOLES OVERSIZED ON THE SKIN AND LONGERON REPAIR AS PER G -5310- T0370320 P1 STEP 6.TITLE:FUSELAGE-MAINFRAME-LH UNDERWING LONGERON AND FSLC MODIFICATION PER EO G-5710-E0366409-DEVIATIONS TO SB 777-5710-57A0122 RB .REPAIR CLASSIFIED AS MAJOF PER GMM 6-2-100.REFER TO WRI:53104352 FOR WORK DETAILS. ORIG SUB DATE: 9/6/2022

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