EECs. I dont recall a need to level, idle, and then reset, perhaps that is what the QRH says. But we often treated it as an informal immediate action: Yaw, "Engine Control," reach up and reset it, power is restored and you're back on an even keel after only one swing of the nose. It happened often enough to become a habit.

Don't put the packs on high unless you desire a cabin full of smoke. Never do it if you're on only one pack to begin with - the remaining pack will eventually trip and now your cabin is climbing. If you sniff environmental smoke after landing just wait for it, in about 60 seconds you'll have your answer: after the offending pack trips you'll know which inoperative ground cooling fan to either a) Strike with a rubber mallet, or b) Replace.

Gear indication system works well but is prone to damage. Frozen slush on the gear leg will totally thrash the proximity sensors, and you'll see a christmas tree on the lg indications. But the gear has 3000psi of motivation, so it's probably down and locked.

When in doubt, reset whatever troubles you. Often the solution to gremlins lies in total power removal from the aircraft. I think i remember removing all power from the aircraft for troubleshooting purposes and the APU kept running, so that might be handy someday.