Service difficulty report · Floorbeam · Boeing 747121

Difficulty date
March 10, 2006
Submitted
April 3, 2006
Operation
Air carrier
Aircraft
N681UP
Make and model
Boeing 747121
Aircraft serial
19661
Aircraft time
106,939 hours, 27,146 cycles
Part
Floorbeam
Condition
Cracked
Location
Bs 340
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

FOUND RT BS 340 U/D FLOORRBEAM AT FRAME CONNECTION AREA HAS 1 HOLE CRACK AT FLOORBEAM WEB, CRACK LENGTH 1/16". FLOORBEAM WEB REPAIRED AT BS 340 RBL 48 TO RT MOST O/B AREA AS PER SRM 53-10-07 FIG 11.