Hi,Today I discovered something that appears to be a fault somewhere in the logic of the FMC. When in Cruise, it is possible to select the Engine-out and then select LT Engine Out OR RT Engine Out. This should provide advisory information of the Max Cruise altitude, Target speed and Max Continuous N1 with one engine failed under the current config. From what I can find out, this should be advisory info only and pressing the CRZ key again should return to the normal CRZ page. Pressing selecting Engine out CRZ in the PMDG 737NG and then selecting LT Engine Out or RT Engine Out causes VNAV to disconnect. It is then not possible to return to the normal CRZ page and VNAV cannot be reconnected. Is this correct behaviour for this function?Peter

Peter,My understanding was this was correct for the pre 10.3 FMC. It isn't correct for the 10.4 we modeled and should be corrected for the 800/900.RegardsPaul Gollnick :-cool Technical Operations/Customer Operational SupportPrecision Manuals Development Groupwww.precisionmanuals.comhttp://www.precisionmanuals.com/images/forum/devteam.jpg

Hi Paul,Excellent!! Thanks for the answer - looking forward to the 800/900.Peter