As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON LANDING THE ACFT JUST AFTER TOUCHDOWN, THE RT MAIN GEAR STRUT FAILED AND COLLAPSED ALLOWING THE RT WING STRIKE THE GROUND. THE STEEL STRUT TUBE FRACTURED IN 2 SECTIONS, PROBABLY AT A STRESSED LOCATION. THE LANDING WAS DESCRIBED AS NORMAL WITH NO UNUSUAL LOADING ON THE ACFT. PROBABLE CAUSE: FRACTURE OF THE STEELE STRUT TUBE. RECURRENCE PREVENTION: CONTINUED DETAILED INSP OF THE UPPER STRUT ASSY.