What was found
REMOVED THE LT AND RT MLG SIDE BRACE STUDS TO C/W AD 95-20-07. PRIOR TO INSTALLING THE SIDE-STAY ASSY SUPPORT BRACKET, THE MECHANIC CLEANED THE MATING SURFACE AT THE SPAR AND RIB, AND NOTICED A CRACK IN THE RIBS, P/N 78475-4 AND P/N 78475-5 IN THE BEND RADIUS OF THE FORWARD VERTICAL FLANGE. THE CRACKS WERE ABOUT .50 INCH TO .75 INCH LONG.