 A single prototype of the D-27 engine was used for flight testing on an Ilyushin Il-76 modified as a testbed aircraft since at least , in preparation for use on the Antonov An-70T military transport aircraft.The version of the D-27 for the An-70T produced and now had propellers.In , the Il-76LL testbed with D-27 engine was put on static display at Moscow's MAKS Air Show, and the next year it flew at the ILA Berlin Air Show and the Farnborough Air Show.