The first Superman movie was in pre-production when Action 471 (May 1977) was released, and I suspect the introduction of a female Phantom Zone villain in this storyline was done to correspond with the introduction of a similar character in the movie.
If not, then it’s an amazing coincidence that Bates, Swan and Blaisdel introduced her in a three-part story, right at this time. The tale begins as Clark discovers that an elderly neighbour of his has broken into his apartment, and is rooting through his stuff. The man lies, claiming the door was unlocked. Superman is not sure what to make of this. It’s a shame he didn’t get to see the ghostly figure talking to the old man.
Clark tries to learn more about the man, and discovers that he is a widower, who believes that he can still communicate with his dead wife. The ghostly figure has been causing panic, as well as consternation on the part of Morgan Edge, as the ghost keeps appearing around Clark’s building, but Kent gets no coverage of this.
The plot threads come together at the conclusion, as we see that this ghost, a Phantom Zone prisoner named Faora, is pretending to be the old man’s dead wife.