Service difficulty report · Skin · Boeing 74747UF

Difficulty date
May 29, 2021
Submitted
June 2, 2021
Operation
Air carrier
Aircraft
N493MC
Make and model
Boeing 74747UF
Aircraft serial
29254
Aircraft time
92,141 hours, 14,935 cycles
Part
Skin
Condition
Corroded
Location
Lt Wing
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

CORROSION - SKIN, LH WING EXTENSION BAT TOP SIDE, BETWEEN WS 1551.25 AND WBL 1243.75, FRONT SPAR TO REAR SPAR.(<P>BLENDED OUT THE DAMAGED AREA IAW SRM 51-10-02 REV 91. PERFORM NDT INSP REFER TO JOB CARD ATTACHING SHEET NO 0292340 AND MEASURED REWORK AREA L=1", W=0.75", D=0.002" IT'S LIMIT ALLOWABLE IAW SRM 57-20-01-1A-1 FIG 101 DETAIL II REV 91. JOB COMPLETED AND CONDITION CHK SATISFIED.</P>)

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