Hi PMDG (Anthony?),Apologies if this has already been raised but trying to find specific problems is quite difficult at the moment because of the sheer number of posts.On a flight from EGCC over to EHAM I noticed that during the descent the aircraft levelled off at 10,000ft in order for the airspeed to come back to 250kts. Once 250kts was achieved the descent continued but the problem was that the altitude for the next waypoint couldn't be achieved because of the temporary levelling off. The FMC displayed a message advising next waypoint altitude couldn't be achieved (or words to that effect).Given that I hadn't entered any manual altitudes for the remaining waypoints shouldn't the FMC be able to recalculate the altitudes for the remaining waypoints and not issue a warning?Regards,

I don't have problems with it. I'm using the speedbrakes when reaching 10000ft to decelerate. It takes a very short time then to achieve an airspeed of 250knots.RegardsFloris

Yeah just use the speedbrakes at about 115 and then you will slow enough to make the transitionGary HayesSrA US Air Force

Hi Floris,Well I suppose that's one way of handling the situation and I'll consider using it but this then brings me onto a separate problem.I have the speedbrake assigned to a lever on my CH yoke (via FSUIPC). Pulling the lever back to activate the brake is fine but when I push it to the closed position it doesn't deactivate the speedbrake. I have to press the / key a couple of times to overcome the problem.But what's more important here? Getting back to 250kts or continuing to descend? Is there an override control which will allow me to continue the descent?I have very little fuel on board and this is a relatively small aircraft so why is it so difficult to lose the speed on descent?Regards,

You shouldn't have to use speed brakes. Those are for ATC screw ups. :DLee Hetherington (KBED)

>You shouldn't have to use speed brakes. Those are for ATC screw >ups. :DOr for screwed up pilots I know of an aircrew for an airline who shall both remain nameless flew most of the way from Reno to LA in a 737 with speedbrakes deployed and heaven knows why neither of them noticed it, but commented on how sluggish she was :) until another pilot (a friend who Ive worked alongside) flying as a passenger in an overwing seat gently pointed out to the flight attendant to tell the guys up front to retract them :))Your right though, speedbrake deployment isnt generally required in a VNAV descent excepting unusual circumstances, in fact I was taught that it was the height of bad airmanship if you have to keep resorting to their use in the air..Having said that, as Ive mentioned in another post, I generally kill VNAV just above the 10000ft anyway to give me more precision when ATC give you vectors, altitudes and speeds thick and fast.. You can generally kiss goodbye to a smooth VNAV path when you hear your callsign on the radio :). To smooth transition to the 250kts its also not unknown at say 15,000 to modify your descent profile speed to say 280 in the descent page on the CDU so your not looking for large transitions at 10,000 adjusting the VNAV target speed in gentle staging rather than a sudden deceleration..take careAndrew