I don't remember this ever coming up before or if it had we played it wrong.
Fuel leak states that after you suffer a critical damage then suffer one damage and repair this card.
Hull breach states that when you suffer 1 or more damage suffer that much critical damage instead.
So if this combination is in play then every hit will cause another damage card unless the fuel leak is repaired through an action as the condition to repair the fuel leak while suffering damage can not be triggered if the hull breach is in effect.
These were the first two cards dealt to my opponents YT last night and it seemed too good. Is this correct?