As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED THAT AFTER LANDING THAT THE RT MLG COLLAPSED ON LANDING. AFTER INVESTIGATING IT WAS FOUND THAT PN 401-335 (AN4-40A) BOLT AND PN 67502-00 RETAINER ASSY HAD BACKED OUT OF THE TRUNNION ASSY (PN 96766-17). THIS CAUSED PN 67040-15 (FITTING ASSY- FWD TRUNNION) TO FAIL WHEN THE WEIGHT OF THE ACFT WAS ON THE LANDING GEAR AND SUBSEQUENTLY CAUSING A COLLAPSE AND DAMAGE TO THE TOP SKIN AND BOTTOM OF THE WING.