Joint Surveillance System Profile: Joint Surveillance System Events (2) Between August 15, 1998 and February 22, 2000: NORAD Radar System and Control Software Inadequate, Commander Finds 1998-08-15 (6:30 a.m.-12:00 p.m.) September 11, 2001: Radar Located in Northeast US Offline for Repair Work 2001-09-11