C182 pilot reported the right main landing gear assembly failed on landing.

Attributes
ACN	1564883
Time
Date	201807
Local Time Of Day	1201-1800
Place
Locale Reference	Y50.Airport
State Reference	WI
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	Skylane 182/RG Turbo Skylane/RG
Operating Under FAR Part	Part 91
Flight Phase	Landing
Route In Use	Direct
Flight Plan	None
Component
Aircraft Component	Main Gear
Person 1
Function	Single Pilot
Qualification	Flight Crew Instrument Flight Crew Private
Experience	Flight Crew Last 90 Days 15.6 Flight Crew Total 2557 Flight Crew Type 2557
Events
Anomaly	Aircraft Equipment Problem Critical Ground Event / Encounter Ground Strike - Aircraft Ground Event / Encounter Loss Of Aircraft Control Ground Excursion Runway Inflight Event / Encounter Unstabilized Approach

Narrative:

Enroute to kosh. Near waypoint (ripon) extremely heavy air traffic. Advised by airventure controller to break out to the west and fly holding pattern. Again encountered heavy traffic while holding. Decided to divert to Y50 to land and wait for better traffic conditions. Y50 AWOS reported 8 knot crosswind with some gusting for runway 31-13. Flew direct to Y50; made crosswind entry to left traffic for runway 31. At round out for landing sensed increasing sink rate. Applied full power to slow sink rate but experienced hard landing. At touchdown; the right main wheel assembly departed the aircraft. Aircraft veered to the right off the runway into soft ground and stopped. Two passengers and the pilot exited the aircraft through the right and left doors. No one was injured. In light of the high traffic and hot and humid weather conditions; flying a longer downwind leg would have given me more time to adjust to flight conditions and make a better landing. On inspecting the right main gear assembly; two days post event; there were signs of corrosion and what appeared to be fatigue fractures at the end of the gear strut. I believe the hard landing probably precipitated an already impending failure.

Original NASA ASRS Text

Title: C182 pilot reported the right main landing gear assembly failed on landing.

Narrative: Enroute to KOSH. Near waypoint (RIPON) extremely heavy air traffic. Advised by AirVenture Controller to break out to the west and fly holding pattern. Again encountered heavy traffic while holding. Decided to divert to Y50 to land and wait for better traffic conditions. Y50 AWOS reported 8 knot crosswind with some gusting for Runway 31-13. Flew direct to Y50; made crosswind entry to left traffic for Runway 31. At round out for landing sensed increasing sink rate. Applied full power to slow sink rate but experienced hard landing. At touchdown; the right main wheel assembly departed the aircraft. Aircraft veered to the right off the runway into soft ground and stopped. Two passengers and the pilot exited the aircraft through the right and left doors. No one was injured. In light of the high traffic and hot and humid weather conditions; flying a longer downwind leg would have given me more time to adjust to flight conditions and make a better landing. On inspecting the right main gear assembly; two days post event; there were signs of corrosion and what appeared to be fatigue fractures at the end of the gear strut. I believe the hard landing probably precipitated an already impending failure.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.