SDR UPS06446229

Service difficulty report · Floorbeam · Boeing 747200

Difficulty date: February 10, 2006
Submitted: February 22, 2006
Operation: Air carrier
Aircraft: N522UP
Make and model: Boeing 747200
Aircraft serial: 21936
Aircraft time: 72,217 hours, 16,929 cycles
System (JASC): 5315 · Fuselage Main, Floor Beam
Part: Floorbeam
Condition: Misdrilled
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 U/D BS 380 FWD FLANGE RBL 51, 52.5, 53.5 AND 55 SHORT EDGE MARGIN FOUND. U/D BS 380 FLOORBEAM UPPER CHORD FWD FLANGE AT RBL 51". REPAIRED AS PER EO B747-5320-12407 FIG 2 PLAN B & RBL 52.5", 53.5" AND 55" AREA. REPAIRED AS PER EO B747-5320-12407 FIG 4 PLAN D AFTER NDT INSPECTED PER NTM PART 6 51-00-00 FIG 4 CRACK FREE.

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