on pg. 176 under Battle Armor: "Even if the trooper is killed, the suit can be salvaged on a 2D6 roll of 10+. If it can be repaired and somebody can be found to wear it, the suit can be pressed back into service" (emphasis mine). However, in the master repair table starting on pg. 183, there is no reference for repairing Battle Armor suits. In fact, there is not a single entry for BA under the repair section of that table.
So how do you go about repairing a BA suit?