10 Biggest Star Trek Plot Holes
7. A Toast To Fallen Friends
This plot hole is an unfortunate one, as Ronald D. Moore was the writer on both Relics and Star Trek: Generations. Both stories have Scotty in situations that conflict with the other. The issue, in this case, is the death of James T. Kirk.
In Star Trek: Generations, the script as written has Kirk seemingly die, once he was swept away into the Nexus. With issues behind the scenes preventing Leonard Nimoy and DeForest Kelley from returning, their roles (and scripts) were quickly handed to Walter Koenig and James Doohan - which goes at least part of the way toward explaining why Chekov is suddenly able to help in sickbay.
However, Scotty is main issue here. Without him, the Enterprise-B may well have been destroyed. He is able to engineer the method to escape. He is however present to witness Kirk's 'fate'.
This means it is a bit odd for him to think that Kirk got the Enterprise out of mothballs to come and rescue him from the crashed USS Jenolan, when he is found by the Enterprise-D. While the easy answer here is that Relics was written long before Generations, and they simply hadn't planned for this outcome yet, the frustrating (although enjoyable!) inclusion of Scotty meant that this statement makes no sense anymore.