Hallo,I know, this problem was discussed here many times. But now, I have this message in the FMC during climb and I haven't found an answer, which satisfied me. I flight the 737-700 and setup the FMC from EDDV to EDDT. I import a flightplan made in FSBUILD. Befor I start the FS, I made with loadmanager the weights. ZFW is about 118.000 lbs. Is it too much? Then I start and climb and suddenly the VNAV is out and in the FMC I can see: unable crz alt and the speeds and altitudes-fields are empty. What can I do?Regards Kai

Hai Kai,Attach the flight plan and give us some more information about your procedures during the flight and we'll come up with some sort of answer (I hope...lol)Regards,

Wasn't your cruize alt too high ? If this is the case, you'll find yourself with computed TOC behind TOD. This will cause this message.anthonyAnthony MertonPrecision Manuals Developmenthttp://www.precisionmanuals.com

Hi,yes, I guess this was the reason, the flight was too high. TC was behind TD.Thanks Kai