Service difficulty report · Floorbeam · Boeing 747123F

Difficulty date
July 10, 2006
Submitted
July 31, 2006
Operation
Air carrier
Aircraft
N676UP
Make and model
Boeing 747123F
Aircraft serial
20101
Aircraft time
83,907 hours, 23,132 cycles
Part
Floorbeam
Part number
65B14796501
Condition
Corroded
Location
Bs 480
Stage of operation
IN
How discovered
9
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

BS 480 LBL 10- RBL 32 FLOORBEAM UPPER FACE FOUND CORRODED. CORROSION BLEND OUT 0.021" BY 1" BY 2" EXCEED SRM 53-10-01 FIG 1 LIMITS, U/D BS 480 LBL 10" - RBL 32" FLOOR SUPPORT REPLACED AND INSTALLED AS PER SRM 51-10-01 PG 9 AND 51-30-02.