[QUOTE=
Basically Boeing probably prefer a failed hydraulic system over an unreliable one.[/QUOTE]
I was going to suggest that as well. But when you think about it, in either case (pumps on or pumps off) the point of failure would be unpredictable and is affected by variables such as the length of flight. Just saying...but still agree stick to the checklist.
I once thought it would be a good idea to cycle the Bleed Air switch when I got a Bleed Off Eng message, after all it worked on my old school jet. Turns out, nope, not a good idea at all...
Regarding monitoring oil quantity: Boeing have released bulletins in the past on the subject of oil "gulping" or hiding. Plenty of info if you google it.
Last edited by HPSOV L; 15th Jan 2019 at 06:16.