SDR 200200276

Service difficulty report · Floorbeam · Boeing 747SR46

Difficulty date
September 16, 2002
Submitted
September 16, 2002
Operation
Air carrier
Filed by
ERKR675D
Marana Aerospace Solutions Inc
Aircraft
N477EV
Make and model
Boeing 747SR46
Aircraft serial
20784
Aircraft time
64,833 hours, 33,228 cycles
Part
Floorbeam
Condition
Damaged
Location
Fuselage
Stage of operation
IN
How discovered
V
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 340 UPPER DECK FLOOR BEAM - UPPER CHORD - OVERSIZED FASTENER HOLES AT LT FRAME ATTACHMENT. TWO FASTENER HOLES WERE OVERSIZED BEYOND THE LIMITS ALSO THE EDGE MARGIN IN THE FASTENER HOLE COMMON TO THE SUBJECT FLOORBEAM UPPER CHORD AND THE BS 340 FRAME INNER CHORD HAS AN EDGE MARGIN CONDITION LESS THAN THE 1.7D MINIMUM. INSTALLED OVERSIZED FASTENERS AND FABRICATED AND INSTALLED A REPAIR STRAP ON THE BS 340 FRAME INNER CHORD PER ECRA 477-53-069-2.

More about the Boeing 747-SR-46