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
95,626 hours, 12,445 cycles
Part
Floorbeam
Condition
Corroded
Location
Bs 880
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 SURFACE OF UPPER TEE CORRODED BS 880 RBL 22-34. S=2"X1. REPAIRED FLOORBEAM PER SRM 53-20-51 REPAIR 5 FIG 201.