HelicoptersTracking Established 1986 as Butterworld Aero Med which changed to current name in 1998. Flying Sikorsky helicopters since 1994. accredited by CAMTS @ (optional) Send Locations YearsLocationICAO/FAA2009- Big RapidsKRQB 1992/09Gerald R Ford IntlKGRR Models Years Models Sikorsky S-76A Sikorsky S-76B Sikorsky S-76C Aero Med Spectrum Health List of helicopters C/N VersionBuiltIn this Org In other Org 760665 s-76c 2007 N176AM : S-76C++, test serial N45147; Spectrum Health Hospitals at Grand Rapids, MI+ 760317 s-76b 1985 N176BA : Spectrum Health Hospitals at Grand Rapids, MI from Apr94; Aero Med - N546D 760260 w/o 2008 s-76a 1984 N176SH : Spectrum Health Hospitals at Grand Rapids, MI Jul97; Aero Med; w/o 29may08+ - N902H 760427 s-76b 1994 N764AM : Spectrum Health Hospitals at Grand Rapids, MI May13-Aug18; Aero Med - N61CP - N764AM