>>53604>And it was all over a busted light bulb.Not really, advisory lightbulbs fails all the time on most planes. The obvious first thing to do in case of a indication malfunction is to run an advisory lights test, if the gear (or any light that doesn't come on as it should) works, you got yourself an issue.
Of course, you could have a double failure, with the bulb going at the same time as the gear doesn't lock properly, which is why you have secondary systems (the Tristar had a ladder down where you could see the landing gear).
EA401 was caused due to bad CRM in the cockpit, and would have been equally possible on any other aircraft.
Myself, I would have loved to work on the TriStar as an engineer, all those clever solutions to problems, and the way it was designed. It was truly ahead of it's time.