SDR UPS07449460

Service difficulty report · Floorbeam · Boeing 747121

Difficulty date: February 12, 2007
Submitted: March 16, 2007
Operation: Air carrier
Aircraft: N683UP
Make and model: Boeing 747121
Aircraft serial: 20353
Aircraft time: 90,184 hours, 22,066 cycles
System (JASC): 5315 · Fuselage Main, Floor Beam
Part: Floorbeam
Condition: Corroded
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

INSPECTION TYPE:C M/D BS 640 RBL 100-108 FLOORBEAM FOUND CORROSION. CORROSION BLEND 0.136 X 1 X 2 INCH EXCEED SRM LIMIT. M/D BS 640 RBL 100-108 FLOORBEAM FITTING REPAIRED AS PER RS R53-25-35757 AND UPS ENGINEERING FILE NUMBER 747-53-20405.