Irahl has no problems elaborating on this one, as he wasn't the one who broke the ship in the first place. He can certainly describe how embarrassing the piece of junk was. He also has enough experience with traditional engine-maintenance to help him out in the conversation, even he has forgotten the specifics.

"All the ships were wrecked. Ours was at least in one piece, but the coolant was bad... so we shut it off. Couldn't do much more than coast without overheating."

They were just flying a time-bomb. It was fine.