SDR UPS06447542

Service difficulty report · Floorbeam · Boeing 747123F

Difficulty date: July 11, 2006
Submitted: August 2, 2006
Operation: Air carrier
Aircraft: N676UP
Make and model: Boeing 747123F
Aircraft serial: 20101
Aircraft time: 83,907 hours, 23,132 cycles
System (JASC): 5315 · Fuselage Main, Floor Beam
Part: Floorbeam
Condition: Corroded
Location: Bs 440
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

INSPECTION TYPE:C U/D RT BS440 UPPER DECK FLOORBEAM FWD FLANGE 1 FASTENER HOLE FOUND CORROSION AT RBL24. CORROSION BLEND OUT 0.048". FASTENER HOLE OVERSIZED TO 0.326" AS PER SRM 51-30-05 AS PER UPS EO B747-5310-23043 APP D WITHIN THE LIMITATION.