The first chopper responded to the crash on Telge at Selph around 10:30pm Saturday.
A car went off the road and then went through a barbed wire fence before it crashed into some trees.
Officials said a 20-year old man and 12-year old boy inside the car were injured.
Life Flight was called, but a mechanical failure prevented it from taking off with the victims.
A second chopper was called to the scene and airlifted the man and boy to the hospital in serious but stable condition.
The stalled helicopter blocked Telge for three hours before a mechanic was able to fix it.
