Service difficulty report · Floorbeam · Boeing 747451

Difficulty date
January 21, 2012
Submitted
January 31, 2012
Operation
Air carrier
Aircraft
N663US
Make and model
Boeing 747451
Aircraft serial
23818
Aircraft time
6,465 hours, 812 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

CORROSION WAS FOUND ON FLOORBEAM OF MAIN DECK. STA 1700 RBL20 S: 1"X1" PERFORM TYPICAL MAIN DECK FLOORBEAM UPPER CHORD REPAIR PER B747-400 SRM 53-60-51 REPAIR 2 FIG 201.