Flight Crew Air Transport Pilot (ATP)
Human-Machine Interface
Ground Excursion Runway; Inflight Event / Encounter Loss Of Aircraft Control
General Evacuated
Human Factors
Touched down on runway 9. Aircraft started skidding towards the left side of the runway. I tried to correct. Aircraft left the runway off the left side. While skidding through the grass the left main gear collapsed. Once the aircraft came to a rest I shut it down and evacuated the passengers. There were no injuries.
After touchdown the pilot of a C-402 was unable to arrest the aircraft's skid toward the left side of the runway where it exited the hard surface and the left landing gear collapsed.  All aboard evacuated without injury.