Service difficulty report · Floorbeam · Boeing 747451

Difficulty date
January 10, 2012
Submitted
January 12, 2012
Operation
Air carrier
Aircraft
N663US
Make and model
Boeing 747451
Aircraft serial
23818
Aircraft time
95,626 hours, 12,445 cycles
Part
Floorbeam
Condition
Corroded
Location
Fuselage
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

58/250 MAIN DECK FLOORBEAM UPPER CHORD UPPER SURFACE CORROSION BS 1700. RBL 53-61.5. S=1"X2". PERFORMED REPAIR PER SRM 53-60-01 REPAIR 2 , FIG 201.