Helicopter Aerospatiale AS350B Ecureuil Serial 1915 Register N20SP used by MSP (Massachusetts State Police). Built 1986. Aircraft history and location Aircraft History For N20SP see also 2001 430 49070 N20SP State of Massachusetts 1995-02-22MSP Massachusetts State Police w/o 22feb95 near Cambridge, Massachusetts. 4 fatalites MSP Send Updates Use APP to upload photo @ (optional) When Now? / / Send