Flight Crew Private
Flight Crew Last 90 Days 45; Flight Crew Total 300; Flight Crew Type 2
Ground Event / Encounter Loss Of Aircraft Control; Ground Excursion Runway
Flight Crew Regained Aircraft Control
Human Factors
I was a passenger in the right seat; I hold a private pilots license with X00hrs total time. Only Y hours in a Cessna 210.Pilot botched the landing; bounced once then landed on the nose. Aircraft made a hard left turn. Pilot showed no actions to straighten out the aircraft. As it was apparent we were exiting the runway I intervened; giving full right rudder and pulled aft on the yoke to avoid a nose gear collapse. The plane crossed taxiway then down the embankment. Aircraft rolled out in the dirt between [the parallel runways]. The pilot took command of the aircraft at that point and taxied back on to [the runway] where we were instructed to taxi off and hold short of [the parallel runway]. Aircraft was taxied to parking were it was tied. I did not observe any damage nor did I hear about any property damage.
Private pilot rated passenger reported he took the controls after the flying pilot lost directional control on the landing roll and departed the runway surface with no damage or injuries.