767 Mel - C Isol Valve
Joined: Jan 2003
Posts: 323
Likes: 0
From: Manchester
From what I remember from my type couse the A.P.U. can be used to supply electric and air up to 27 000 ft but only electric from 27 000 ft. So if you have a problem that requires A.P.U. air above that altitude you can't have it. This is straight of the top of my head so don't take it as gosple!!!!!.
Rgds Dr I.
Rgds Dr I.
Joined: Jul 2000
Posts: 399
Likes: 0
From: West
Center Hydraulic Pump cavitation
I can access our MEL on-line now. There is a note at the bottom of the MEL for this item that says:
"Note: Flight tests indicate that the center hydraulic pumps would start to cavitate at flight levels above 270."
So ftrplt is essentially correct in that apparently the APU loses enough pneumatic capability by FL270 that it is incapable of providing sufficient center hydraulic head pressure to keep the center pumps operating normally.
"Note: Flight tests indicate that the center hydraulic pumps would start to cavitate at flight levels above 270."
So ftrplt is essentially correct in that apparently the APU loses enough pneumatic capability by FL270 that it is incapable of providing sufficient center hydraulic head pressure to keep the center pumps operating normally.
Avoid imitations
Joined: Nov 2000
Aviation Qualifications: ATPL
Posts: 15,113
Likes: 1,087
From: Wandering the FIR and cyberspace often at highly unsociable times
Isol MEL C?
I think she's a lovely girl. I wouldn't want to isolate myself from her in any event, unless that dreadful harpie, VIC B, was about to try to sing along with her.......
Oh sorry, this isn't about Spice Girls at all, is it?
I think she's a lovely girl. I wouldn't want to isolate myself from her in any event, unless that dreadful harpie, VIC B, was about to try to sing along with her.......
Oh sorry, this isn't about Spice Girls at all, is it?
