I can't believe Bell got that fuel transfer light thing certified. At 2AM, on short final or just clearing the deck on takeoff, it is brighter than the sun. Even if you know it's going to come on, it causes a very sudden increase in heartrate, and distracts both pilots at a critical phase of flight, because you have to verify what the master caution light was. I've cursed the
idiot(s) who designed the 412 fuel system more times than I can count. Rube Goldberg had nothing on them, and it's all caused by the simple failure to put the
fuel underneath the mast, and thus the problem of CG movement when fuel is burned. The entire machine is one huge kludge, cobbled together without any apparent forethought.