Engineers, Bridges and Suicde....illogical

[Hank]

... i forget, can a unit that's Broken with a moral of "no moral" be rejuvenated to operational status?

seems like I read this somewhere here that they could not, but I could be wrong
... so that would mean you'd have to be sure your engineer's moral doesn't go too low. Just a thought ... and I repeat, I could be wrong.