No person shall voluntarily bring, land or cause to alight within or upon any park, any airplane, balloon, parachute, hang glider, or other aerial device, except that certain areas may be designated appropriate landing places for medical evacuation helicopters. For the purposes of this section, voluntarily shall mean anything other than a forced landing caused by mechanical or structural failure of the aircraft or other aerial device.
N.Y. Comp. Codes R. & Regs. Tit. 21 § 9003.10