▁mission ▁when ▁the ▁car rier ▁" ran ▁over ▁him " ▁after ▁a ▁take off ▁crash . ▁ ▁Although ▁he ▁did ▁not ▁qual ify ▁as ▁a ▁pilot ▁until ▁comple ting ▁his ▁st ip ulated ▁astr onaut ▁training , ▁Mus gra ve ▁has ▁flow n ▁ 1 7 , 7 0 0 ▁hours ▁in ▁ 1 6 0 ▁different ▁types ▁of ▁civil ian ▁and ▁military ▁aircraft , ▁including ▁ 7 , 5 0 0 ▁hours ▁in ▁jet ▁aircraft . ▁He ▁has ▁earned ▁F AA ▁ratings ▁for ▁instruct or , ▁instrument ▁instruct or , ▁gl ider ▁instruct or , ▁and ▁air line ▁transport ▁pilot ▁in ▁addition ▁to ▁astr onaut ▁wings . ▁An ▁accomplished ▁par ach ut ist , ▁he ▁has ▁made ▁more ▁than ▁ 8 0 0 ▁free ▁falls , ▁including ▁over ▁ 1 0 0 ▁experimental ▁free - fall ▁desc ents ▁involved ▁with ▁the ▁study ▁of ▁human ▁aer od ynam ics . ▁ ▁Medical ▁and ▁scientific ▁care ers ▁Following ▁his ▁gradu ation ▁from ▁Sy rac use ▁University , ▁Mus gra ve ▁was ▁briefly ▁employed ▁as ▁a ▁math ematic ian ▁and ▁operations ▁anal yst ▁by ▁the ▁East man ▁K od ak ▁Company ▁in ▁Ro chester , ▁New ▁York ▁in ▁ 1 9 5 8 . ▁ ▁Upon ▁comple ting ▁his ▁medical ▁doctor ate , ▁he ▁served ▁a ▁surg ical ▁intern ship ▁at ▁the ▁University ▁of ▁Kentucky ▁Medical ▁Center ▁from ▁ 1 9 6 4 ▁to ▁ 1 9 6 5 . ▁He ▁continued ▁there ▁as ▁a ▁United ▁States ▁Air ▁Force ▁post do ctor al ▁fellow ▁(