After landing when I put in a little thrust an alarm sounds and only turns off when I reduce thrust. I know why this happens when taking off but not after I have landed at my destination. Wondering what I am doing wrong. I've also noticed that air conditioning is lit up in the warning window next to MCP. Packs are on from the minute I start engines until I shut down after a flight. I've tried doing different things on the overhead panel but cant get the light to go off.Thanks. Chris

After landing when I put in a little thrust an alarm sounds and only turns off when I reduce thrust. I know why this happens when taking off but not after I have landed at my destination. Wondering what I am doing wrong. I've also noticed that air conditioning is lit up in the warning window next to MCP. Packs are on from the minute I start engines until I shut down after a flight. I've tried doing different things on the overhead panel but cant get the light to go off.Thanks. Chris

Hey Chris, not much help when you don't even mention the aircraft your using. Post some shots of your panel (overhead and main) I think that would be the fastest way to figure this out.CheersRob

Sorry, I use the PMDG 737-900.Thanks,Chris

The AIR COND sing is normally a matter of dissagreement between the programmed cruise altitude in the cabin pressurization panel (overhead) and the actual Crz Alt at which finally the aircraft has flown. It commonly lights after starting descent and when those parameters are different.If you change your programmed Crz Alt you must also change the cabin press.

Jose answered one of your question, the other one concerning throttle/horn is because you are applying too much throttle to start your taxi. Ease back and keep below 40% or so and you won't hear the alarm that sounds anytime there's not flaps down and throttle up.

Jose answered one of your question, the other one concerning throttle/horn is because you are applying too much throttle to start your taxi. Ease back and keep below 40% or so and you won't hear the alarm that sounds anytime there's not flaps down and throttle up.

Thanks, unfortunately with the posky 737-900 (I'm using the panel folder from PMDG), I need about 47% thrust to get the aircraft moving from a standstill. This aircraft I probably wont be able to use anyhow. On my takeoff roll a message appears at the top of the screen showing the aircraft to be incompatible due to CG. I was still able to fly, use the FMC and land with no problems so I am unsure why the message appeared. Anyways, thanks for the response.Chris

Dan has the right idea. The alarm is in reality a takeoff warning horm. This is caused by the throttles being pushed up past 20 or 30 percent without the flaps in the not up condition. The airplane thinks you are trying to start a takeoff roll without being properly configured for take off. Thats the way it works in real life and as realistic as PMDG models their aircraft, I am assuming that they are duplicating the reality of takeoff warning.John Worden

A slight Clarification to my previous post:It should be noted that when I said 20 or 30 percent, it should be noted that figure is respective of Quadrant travel, not (N1 or N2) and the flaps are in the full up position. If memory serves me correctly, I believe it is 30 percent of travel. When we did runups or had to expedite taxis across active runways we always had to drop flaps to the first position either flaps 1 or flaps 5, depending on the aircraft. Im not sure which aircraft you are talking about, but if you are flying the 747, you must have the trim air valve open, both upper and lower recirc valves open, and should have both isolation valves open, and either APU or 1 or all engine bleeds open. If Taxiing then all operating engines need to have the bleeds open.Hope this helps.John

A slight Clarification to my previous post:It should be noted that when I said 20 or 30 percent, it should be noted that figure is respective of Quadrant travel, not (N1 or N2) and the flaps are in the full up position. If memory serves me correctly, I believe it is 30 percent of travel. When we did runups or had to expedite taxis across active runways we always had to drop flaps to the first position either flaps 1 or flaps 5, depending on the aircraft. Im not sure which aircraft you are talking about, but if you are flying the 747, you must have the trim air valve open, both upper and lower recirc valves open, and should have both isolation valves open, and either APU or 1 or all engine bleeds open. If Taxiing then all operating engines need to have the bleeds open.Hope this helps.John

It helps a lot. While taxing from the runway I will keep the flaps to 1 until reaching the gate, see if that fixes my problem.Thanks,Chris

Thanks, unfortunately with the posky 737-900 (I'm using the panel folder from PMDG), I need about 47% thrust to get the aircraft moving from a standstill. This aircraft I probably wont be able to use anyhow. On my takeoff roll a message appears at the top of the screen showing the aircraft to be incompatible due to CG. I was still able to fly, use the FMC and land with no problems so I am unsure why the message appeared. Anyways, thanks for the response.Chris

Let me get this straight: You merged the PMDG panel with another model and now you expect Support in the PMDG Forum? You do know that merges are exempt from support?Karsten

ChrisYou don't really need to taxi around with the flaps in flaps 1 position, as this is not realistic in the real world unless instructed by ground to expedite taxi. It is a solution to your problem, however, keeping the throttle quadrant below 30 percent travel position is much more realistic. 30 percent travel is somewhat more than what you would need to move the aircraft.John

ChrisYou don't really need to taxi around with the flaps in flaps 1 position, as this is not realistic in the real world unless instructed by ground to expedite taxi. It is a solution to your problem, however, keeping the throttle quadrant below 30 percent travel position is much more realistic. 30 percent travel is somewhat more than what you would need to move the aircraft.John

Thanks, it was just for flying the posky 737-900 aircraft from project opensky. I was using the PMDG panel for that aircraft and unfortunately the posky aircraft needs at least 47% thrust to get it going from a stopped position. I've tried getting it going with 30-35% but it won't budge.

After landing when I put in a little thrust an alarm sounds and only turns off when I reduce thrust. Thanks. Chris

I've found that if you reduce flaps to 5 or 10 degrees after landing this alarm does not sound.Iain Smith