Hey,please help me out here.I'm currently in a flight, was getting to cruise altitude and wanted to re-adjust my wind info. I went back to the ACT PERF INIT page and changed the wind info, but then got a vnav disconnect, and can't get it to reconnect !In the legs page, my speeds and altitudes are filled in so VNav has the information it needs, but just can't get it to reconnect. Whenever I press the VNav button, it goes directly to VNav disconnect again.Can this be fixed in-flight or is this a bug?ps: I have no throttle or other input spikes that might be causing a vnav disco...It would be cool if I could get that fixed in the next 2 hours, as that is my presumed T/D :)thanks.ps2: aircraft is 737-700 sp1hmm, for your info, just fixed it by putting the EXACT ORIGINAL wind info back in the ACT PERF INIT page.... is this normal behavior ?

Edited February 11, 201214 yr by tjeuten

Enter your updated 'wind' info in the RTE DATA page accessed from LEGS.

Thanks, yes I know I should normally be doing it there, but I was having an issue that it wouldn't accept the data I entered. I for instance entered 251/118, and lineselect the fix, and nothing happened. That's why I tried to update it from the ACT PERF INIT page.It's not the first time that I run into VNav disconnect problems because of wind updating issues, so I was wondering if other people have faced this, so if this is a little bug, or is it me doing something I shouldn't... ?

Mathieu, "nothing happened" as in the 251/118 doesn't appear at the selected LSK?

or is it me doing something I shouldn't... ?

Probably. Why are you monkeying with Perf Init when you're in flight? I don't think it should cause a VNAV Disconnect, but you should be doing this with RTE DATA.Maybe you could "re-cruise" it to get back into VNAV. Goto CRZ page and reenter your desired cruise alt and execute. That sometimes helps.

Edited February 11, 201214 yr by Spin737