SDR 9605956739

Service difficulty report · Beam · Boeing 747251F

Difficulty date
March 11, 1996
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N639US
Make and model
Boeing 747251F
Aircraft serial
23887
Part
Beam
Condition
Cracked
Location
Lt Wing
Stage of operation
IN
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 PERIODIC CHECK, FOUND UPPER FLANGE ON THE LEFT WING OUTBOARD LEADING EDGE BEAM CRACKED IN RADIUS. STOP DRILLED CRACK AND CUT OUT DAMAGED AREA. FABRICATED DOUBLER AND FILLER FROM 7075 AND HEAT TREATED TO T6. REPAIR WAS ACCOMPLISHED PER EA 67-103263, SEC 1.