Service difficulty report · Floorbeam · Boeing 747451

Difficulty date
January 26, 2014
Submitted
January 27, 2014
Operation
Air carrier
Aircraft
N670US
Make and model
Boeing 747451
Aircraft serial
24225
Aircraft time
99,920 hours, 12,256 cycles
Part
Floorbeam
Condition
Corroded
Location
Bs 1700
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

SEVERAL AREAS OF CORROSION DISCOVERED ON FLOORBEAM UPPER FLANGE AT BS 1700, RBL 25-28. FLOORBEAM REPAIRED IAW SRM 53-60-51 REPAIR 2.