As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) A CRACK WAS FOUND IN THE RT LOWER SPAR CAP HORIZONTAL FLANGE AT STATION 117.0 BL.THE CRACK EXTENDED FROM THE RIVET HOLE AFT TO THE EDGE OF THE FLANGE, AND FORWARD JUST SHY OF THE FLANGE RADIUS (OF THE VERTICAL LEG).THE CRACK WAS NOTICED ON A PREFLIGHT INSPECTION BY MAINTENANCE PERSONNEL. THE MANUFACTURER WAS CONTACTED AND AN APPROVED REPAIR INITIATED TO SPLICE IN A NEW PIECE OF THE LOWER CAP.