As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ONE EACH OF TWO STEERING PISTON PINS THAT GO THROUGH COLLAR, PN 5920605-503, WAS SHEARED INSIDE THE COLLAR. THE BREAK WAS IN THE BOTTOM THIRD OF THE SHANK. THERE WAS A HEAVY COATING OF RUST ACROSS THE SHEARED SURFACE. THIS DEFECT WAS DISCOVERED DURING THE PERFORMANCE OF AN A-CHECK.