Service difficulty report · Floorbeam · Boeing 747451

Difficulty date
January 11, 2012
Submitted
February 1, 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

MAIN DECK FLOORBEAM UPPER CHORD UPPER SURFACE CORROSION BS 980. RBL 53.5. S=1.5"X2" SCEPTRE LOG PAGE ENTERED AND DEFERRED FOR SDR REPORTING. REPAIRED THE CORRODED FLOORBEAM UPPER CHORD PER B747-400 SRM 53-20-51.