You messages on this subject rang a bell, as I seem to recall having seen the aircraft in service with Ozark. I was working in that part of the US in 1980, and went through STL a number of times, which is where I remember seeing them. (When you used to sit on an Ozark flight out on one of the dreaded J-dock gates waiting for a mobile lounge to get there, one had plenty of time to look out the window.)
I checked Bill Harms' websites, and the 2 727s involved show up as 727-2D4, D4 being Ozark's customer code. Harms also shows them being delivered in October of 1979, so the timing could work. I know some folks from the original Ozark/Krazo, so I'll ask them what they remember, and if they have any pictures.
After PA had them, the 2 aircraft ended up at Fedex converted as freighters, and are currently flying as N287FE and N288FE, respectively.
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