Yeah, Ferro Lad’s been dead almost as long as I’ve been alive, so I don’t think I’m blowing any secrets here. The last time a Legionnaire died, there was no fanfare, no announcement on the cover, and almost no emotion shown. Of course, Lightning Lad came back not long after his “death.” But Ferro Lad stayed dead. (Yes, he returned as a ghost, as his twin brother, as a clone (twice!) and as a character in a reboot Legion. But this Andrew Nolan died in Adventure 353, and is still dead in current continuity, such as it is.)
It sounds like Jim Shooter always planned to kill Ferro Lad. He told Roger Stern that he didn’t think he’d be allowed to kill any existing Legionnaires, so he created some “extras” in his first story. Since no regular character in a comic like this had been permanently killed before, he thought it should be tried. (14 years later, he tried to apply similar logic to the idea of turning a long-standing character permanently evil, but Jean Grey just came back to life as a hero again, so I don’t think that idea stuck. It’s a shame, but it begs the question—would we remember Ferro Lad so fondly if he had lived?