Hi all,I have flown quite a few flights with the NG and I have been having some problems with it. I will start a flight, program the FMC, takeoff etc.. The only real problems is when I get to my descent point. I'll be flying, get the RESET MCP ALT warning, and I reset it for the descent phase of the flight but the problem is when I get to TOD I get a message from the FMC saying VNAV PATH NOT AVAIABLE. It then switches to SPD when in most cases causes me to get down to where I have to be late. First question is what do I do to stop getting the VNAV PATH NOT AVAIABLE message from the FMC. Second problem comes on the approach part of the flight. On the FMC I put in the flightplan with the correct approach STAR and runway. But when I get on final, hit the APP tab on the MCP and engage Autopilot B I get another error from the FMC this time it being RW/APP CRS ERROR even though I am landing on the same runway I put into the FMC.I hope you guys can understand what I am saying. Anyway, any help on these to subject would be great.Thanks,Daniel

" VNAV PATH NOT AVAIABLE"You do not have a computed path. Have you selected an arrvial or runway yet?? You would NEVER be on your way down without clearance so you can do these things in this situationa: Build a path prior to 5 NM T/D with a E/D point landing pointb: Select a SPD DEScent if for some reason you have no idea where u will land.c:Use the MCP for DEScent - LVL CH, V/S" RW/APP CRS ERROR" Hehe yes I made sure this was in the update. See it's simple, if you were following approach checklist you would have known to set the MCP COURSE window to the final approach course (Ref app page ILS course) ;-) but hey now you know eh?[h4]Best Wishes,Randy J. Smithhttp://www.precisionmanuals.com/images/forum/betaimg.jpgAMD 64 3200+ | ASUS KV8 DELUXE | GFORCE 5700 ULTRA @535/1000 | Maxtor 6Y080M0 SATA 80 GIG | 512 DDR 400 | Windows Xp Pro | Windows Xp Pro 64 |

Randy or anyone for that matter please elaborate on how to get this bird to go down on the proper path. I don't really like using SPD Descent, LVL CH, or V/S.

Actually I think I understand now. In order for me to be able to do VNAV and descend by PATH I have to click on the legs button on the FMC and insert speed/altitude for various waypoints. Am I correct here?Before I thought it automatically calculated speed and altitudes for you but I guess not.

Well what do you have in the FMC? How is the aircraft going to descend in PATH without knowing where to descend to? Just having the DEST ICAO is not enough for the FMC to calculate a proper descent profile. Select and approach runway to have a valid E/D point prior to T/D otherwise you will have to select another mode.[h4]Best Wishes,Randy J. Smithhttp://www.precisionmanuals.com/images/forum/betaimg.jpgAMD 64 3200+ | ASUS KV8 DELUXE | GFORCE 5700 ULTRA @535/1000 | Maxtor 6Y080M0 SATA 80 GIG | 512 DDR 400 | Windows Xp Pro | Windows Xp Pro 64 |