Service difficulty report · Floorbeam · Boeing 747121

Difficulty date
February 13, 2007
Submitted
March 14, 2007
Operation
Air carrier
Aircraft
N683UP
Make and model
Boeing 747121
Aircraft serial
20353
Aircraft time
90,184 hours, 22,066 cycles
Part
Floorbeam
Condition
Corroded
Location
Bs 860
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 M/D BS 860 LBL 80-97 FLOORBEAM FOUND CORRODED. CORROSION BLEND OUT 0.040 X 2 X 2 INCHES EXCEED SRM 53-10-01 FIG 1 LIMITS. M/D BS 860 LBL 65 TO MOST LEFT O/B FLOORBEAM REPLACED AND INSTALLED AS PER SRM 51-10-01 PG 9 AND 51-30-02.