What was found
HEAVY CK COE / MAJOR REPAIR / LEVEL 2 CORROSION: FLOORBEAM 17 IS CORRODED ON THE UPPER AND LOWER SURFACE OF THE UPPER FLANGE BETWEEN LT INBOARD AND LT OUTBOARD SEAT TRACKS.(LENGTH 1.25, WIDTH .300, DEPTH .015 INCH). REMOVED CORROSION, FABRICATED AND INSTALLED NEW FLOORBEAM AND 4 EA SPLICE PLATES IAW ATR42 SRM.