SDR 0301446624

Service difficulty report · Floorbeam · Boeing 747251B

Difficulty date
August 6, 2003
Submitted
October 2, 2003
Operation
Air carrier
Aircraft
N624US
Make and model
Boeing 747251B
Aircraft serial
21706
Aircraft time
92,844 hours, 15,625 cycles
Engine
Pwa JT9D*
Part
Floorbeam
Condition
Cracked
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

DURING "L" CHECK FOUND CRACKS IN THE FLOORBEAM WEB, UPPER SECTION AND FRAME WEB AT BS 340 LT. THERE WERE CRACKS IN THE FLOORBEAM UPPER SECTION AT BS 340 RT. ALSO CRACKS WERE FOUND IN THE FLOORBEAM WEB, UPPER SECTION AND THE FRAME WEB AT BS 360 RT. REPAIRED IAW EA 66-165085.