http://news.yahoo.com/s/ap/20090817/ap_on_go_ca_st_pe/us_mid_air_collision]NTSB changes key point in Hudson collision report (AP) [/URL]



AP - Federal safety officials investigating a midair collision over the Hudson River changed their account of the accident on a key point Monday, saying an air tour helicopter struck by a small plane wasn't initially visible on radar to an air traffic controller handling the plane.