Service difficulty report · Floorbeam · Boeing 747121

Difficulty date
September 3, 1996
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N683UP
Make and model
Boeing 747121
Aircraft serial
20353
Part
Floorbeam
Condition
Corroded
Location
Bs 1580
Stage of operation
IN
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, MAIN DECK FLOOR STRUCTURE FLOOR BEAM UPPER CHORD CORRODED AT BS 1580 BTWEEN LBL 60/108. CORROSION OUT OF LIMITS IAW SRM 53-10-01. REPLACED FLOOR BEAM IAW SRM 53-10-07.