Given the area in which this event occurred the aircraft would have been under radar control in busy airspace and it's unthinkable that such deviations from track (if that's what caused the phenomenon) would not have been noticed. If the pilot reported problems with navigation ATC would have put him on a radar heading. But would it have been tracking a VOR radial or would it have been on INS?
Last edited by HEATHROW DIRECTOR; 20th Nov 2005 at 14:57.