NEW : Authorities identify the three people killed , including four minors . The plane struck a Indiana house upside down 17 , an CNN official says . The pilot did not indicate any problems before the crash , an NTSB official says .
NEW : Authorities identify the four people killed , including three minors . The plane struck a Connecticut house upside down Friday , an NTSB official says . The pilot did not indicate any problems before the crash , an NTSB official says .