Service difficulty report · Floorbeam · Boeing 747123F

Difficulty date
July 11, 2006
Submitted
August 2, 2006
Operation
Air carrier
Aircraft
N676UP
Make and model
Boeing 747123F
Aircraft serial
20101
Aircraft time
83,907 hours, 23,132 cycles
Part
Floorbeam
Condition
Corroded
Location
Bs 440
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

INSPECTION TYPE:C U/D RT BS 440 UPPER DECK FLOORBEAM AFT FLANGE 1 FASTENER HOLE FOUND CRACK AND CORROSION AT RBL7. CORROSION BLEND OUT 0.032" FASTENER HOLE OVERSIZED TO 0.310" AS PER SRM 51-30-05 AS PER UPS EO B747-5310-23043 APP D WITHIN THE LIMITATION.