September 13, 201312 yr Commercial Member I appreciate that. Config: L and C systems pressurized, R system depressurized. Manual states to pressurize R system first to prevent fluid transfer. Thus, we should see something eventually. Best regards, Robin.
September 13, 201312 yr Commercial Member An hour and fifteen minutes later, no change. Best regards, Robin.
September 13, 201312 yr I appreciate that. Config: L and C systems pressurized, R system depressurized. Manual states to pressurize R system first to prevent fluid transfer. Thus, we should see something eventually. Best regards, Robin. I never tried that....but you should see nothing happen.The fluid transfer (into the right system) has to do with setting the parking brake on one system and releasing the parking brake while on the other system. I have to look up notes....(I know embaressing but I dont remeber the sequence anymore)...or you can just try a bit. But it is not very spectacular, lol Rob Robson
September 14, 201312 yr Author I don't see any transfer of fluid from one system to the other. Robin, are you talking about the ADP problem I mentioned? I don't think it's a fluid transfer problem, as both Left and Right systems were evidently off on the synoptics and unable to provide pressure to the center system even if pressure transfer is possible. The flowline clearly shows pressure to the center system users despite the fact that both C1,C2 ADPs are commanded and indicated off. Fluid transfer between different systems is usually a pretty bad idea, because external leakage in a pressurized mechanical system having long winding plumbing cannot possibly be ruled out. Loss of fluid in multiple system can lead to catastrophe. Manual states to pressurize R system first to prevent fluid transfer. that's what you get with powering the same user, by design, from more than one system, haha. I believe Boeing has done the trade-off correctly.
Create an account or sign in to comment