What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Pilot made a normal approach and touchdown. Once all three gear were on the ground, the nose wheel started to shimmey and the main gear started to "duck walk". The "duck walk" is a condition where each main gear oscillates latterly back and forth. Directional control lost and the right main gear axle sheared as the aircraft departed the runway surface. The aircraft came to rest on the side of the runway. No injury to the pilot. Aircraft sustained minor damage.
As the FAA filed it
PILOT MADE A NORMAL APPROACH AND TOUCHDOWN. ONCE ALL THREE GEAR WERE ON THE GROUND, THE NOSE WHEEL STARTED TO SHIMMEY AND THE MAIN GEAR STARTED TO "DUCK WALK". THE "DUCK WALK" IS A CONDITION WHERE EACH MAIN GEAR OSCILLATES LATTERLY BACK AND FORTH. DIRECTIONAL CONTROL LOST AND THE RIGHT MAIN GEAR AXLE SHEARED AS THE AIRCRAFT DEPARTED THE RUNWAY SURFACE. THE AIRCRAFT CAME TO REST ON THE SIDE OF THE RUNWAY. NO INJURY TO THE PILOT. AIRCRAFT SUSTAINED MINOR DAMAGE.