I had an engine failure due to fuel running out of the center tank. I was away from the computer and when I returned the autopilot, fd, a/t, lnav and vnav at all disconnected. I was able to get the engines restarted and everything except the a/t to re-engage. I tried recycling the autopilot, but no auto throttle. Is there a trick to it? ThanksMike MarzettKDFW

>I had an engine failure due to fuel running out of the center>tank. I was away from the computer and when I returned the>autopilot, fd, a/t, lnav and vnav at all disconnected. I was>able to get the engines restarted and everything except the>a/t to re-engage. I tried recycling the autopilot, but no>auto throttle. Is there a trick to it? Thanks>>Mike Marzett>KDFWDid you cycle the autothrottle switch avove the F/D switch on the MCP?

TimI did click the a/t switch, several times. It would engage temporarily (split second) and disengage. I could see it annunciated briefly then it would disappear. Mike MarzettKDFW

>Tim>>I did click the a/t switch, several times. It would engage>temporarily (split second) and disengage. I could see it>annunciated briefly then it would disappear. >>Mike Marzett>KDFWNext question - did you get the generators back online? without power, you're screwed.

"Next question - did you get the generators back online? without power, you're screwed." LOL[h4]Best Wishes,Randy J. Smithhttp://img.villagephotos.com/p/2003-8/196432/winglets_lg.jpg [h3] AMD XP 2200 |MUNCHKIN 512 DDR RAM |ECS[/b ][i] K7S5A MB[/i] |GF2 MX 32 MEG and still runs GOOD!|WIN XP PRO |MITSUBISHI DIAMOND PLUS 91 19"[/h3]

>>"Next question - did you get the generators back online?>without power, you're screwed.">> LOL>Screwed - It's an industry term. Usually a preface to being UDIWOF (Upside Down In the Weeds On Fire).

I cannot say for sure whether the generators were online or not. Since everything else appeared to be working, I assumed they were. Would there have been any other indication other than not being able to engage the auto throttle that the generators were not online?Mike MarzettKDFW

>I cannot say for sure whether the generators were online or>not. Since everything else appeared to be working, I assumed>they were. Would there have been any other indication other>than not being able to engage the auto throttle that the>generators were not online?>>Mike Marzett>KDFWProbably a bunch of caution lights on the caution panel.Your battery will keep most of the stuff you see on the main panel alive, so you really need to go up and look at the overhead and see if anything is lit - in normal flight the overhead panel is dark.

Thanks Tim,I will keep that in mind. Most of my flights have not required the middle fuel tank so this has not been a problem. From your answer I'm assuming restarting the autothrottle is something one should be able to do. Thanks again for your help.Mike MarzettKDFW