Service difficulty report · Floorbeam · Boeing 747121

Difficulty date
April 13, 2003
Submitted
April 30, 2003
Operation
Air carrier
Aircraft
N681UP
Make and model
Boeing 747121
Aircraft serial
19661
Aircraft time
100,611 hours, 25,820 cycles
Part
Floorbeam
Condition
Corroded
Location
Fuselage
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:N/A M/D - BS 760 LBL 40 FLOORBEAM UPPER SURFACE FOUND CORRODED. FLOORBEAM REPAIRED PER SRM 51-40-04 FIG 3. CORROSION BLEND OUT 0.060 X 2 X 2 INCHES, EXCEED SRM LIMIT.