Lear Siegler, Inc (LSI) was contracted to overhaul and modify two F-106s 59-0061 in Oct 1986 and 57-2513 2 months later in Dec 1986 for the Rockwell's B-1B Bomber Chase Program. Work was done at Otis AFB MA. Shown here is Mark Alexander with an engine run on F-106B 57-2513 prior to FCF taken in early 1987 via Mark Alexander.