Howard Hughes owned it from 1939 to 1966 (3)
I believe the answer is:
twa
'howard hughes owned it from 1939 to 1966' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for twa that I've seen before include "pygmies" , "A couple of Scotsmen" , "pygmy" , "Organisation that used to provide flight" , "couple at Prestwick" .)