Has a comm system that can comminicate home at near instantateous speeds, and somehow avoids causlity violations...
In fairness, this is not a requirement for intergalactic flight. Just a requirement to keep in touch with "home".

Also, in fairness, I've never been a fan of the "they'd be advanced, thus couldn't ever crash." We're advanced enough to send a man to the moon, but we still lost craft and crew with our attempts. Accidents happen.

But no, I don't think it's likely an alien craft hit the turbine and caused the damage.

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I'm like one of those idiot savants...well, except for the savant part.
"In order to increase awareness of the homeless, security have been given binoculars."