I recently updated my PMDG 737, hoping the newer version would fix a longstanding issue I have, that whereby the plane becomes very difficult to move once it's landed and come to a stop. However, the latest version still has the same problem, at least for me.

Specifically, after landing, whether I've selected autobrakes or nor not, and after I've stowed the reversers, the plane requires about 75% N1 or greater to get it moving (and even then, it's at a crawl).

I've checked all the key mappings so I can't imagine what the problem is. This is the only aircraft that has this issue.

I had that same exact issue a few nights ago with the 737-600. It would take nearly full power to just barely crawl, and then after a moderate distance it would suddenly jump forward.

Could it be something related to the brake protection system, preventing overheating,?

Check the failure menu, you might burst a tire. 

😁😁, are y'all doing those serious brake checks? Happened to me at PADU. I circled to land with the 700 on 31, pounded her in and rocketed to a stop. I back taxied to do a takeoff and full stop and she barely moved when I was doing the 180 into position. I had to use full thrust. But, pushed them up to takeoff and she rolled normally after about 50ft. Blown tires or stuck brakes, we got her back in the air🤣. Any who, give the ol PADU circle to 31 in the 737. It's a bit sporty.

Edited August 9, 20223 yr by G550flyer
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It happened to me, and fixed it replacing brakes or a tyre at the maintenance menu

3 hours ago, Boeing_Driver said:

I recently updated my PMDG 737, hoping the newer version would fix a longstanding issue I have, that whereby the plane becomes very difficult to move once it's landed and come to a stop. However, the latest version still has the same problem, at least for me.

Specifically, after landing, whether I've selected autobrakes or nor not, and after I've stowed the reversers, the plane requires about 75% N1 or greater to get it moving (and even then, it's at a crawl).

I've checked all the key mappings so I can't imagine what the problem is. This is the only aircraft that has this issue.

You probably overheated your brakes. They are now stuck and the only way to get rid of it is by deleting the failure through the FMC. So it's not a bug but a feature, if you want.
I suggest you refrain from maximum braking for more than a couple of seconds (if it's not for preventing runway excursions).

Okay, I just did a flight in which I didn't use any brakes on landing, just reversers. This time, there was no issue as mentioned previously, which implies that the sim is indeed replicating blown tires (I also checked my failures and they are all off).

I'll try again with very light brakes applied and see if the problem has been solved. 

Btw, I don't use any more aggressive brakes on this plane than anything else in my stable....not sure why PMDG aircraft are so sensitive...

5 hours ago, Boeing_Driver said:

Okay, I just did a flight in which I didn't use any brakes on landing, just reversers. This time, there was no issue as mentioned previously, which implies that the sim is indeed replicating blown tires (I also checked my failures and they are all off).

I'll try again with very light brakes applied and see if the problem has been solved. 

Btw, I don't use any more aggressive brakes on this plane than anything else in my stable....not sure why PMDG aircraft are so sensitive...

In the PMDG you can blow your tires and overheat the brakes without turning on failures. And PMDG isn't "sensitive", it's realistic. If you're blowing tires or overheating the brakes during normal operations you're doing something wrong.

7 hours ago, Boeing_Driver said:

Okay, I just did a flight in which I didn't use any brakes on landing, just reversers. This time, there was no issue as mentioned previously, which implies that the sim is indeed replicating blown tires (I also checked my failures and they are all off).

I'll try again with very light brakes applied and see if the problem has been solved. 

Btw, I don't use any more aggressive brakes on this plane than anything else in my stable....not sure why PMDG aircraft are so sensitive...

As @andreh said: No offense but it's your fault. If that doesn't happen on other aircraft it's because other aircraft don't simulate that aspect. I've had that happen one single time in all those PMDG years, and that was on an emergency landing.

I suggest you use autobrake during landing (as the real Boeing drivers do), that will guarantee your brakes don't get stuck. If you insist on jumping onto the brakes, just delete the failure from the FMC after landing.

 

...like the others correctly said mostly this is caused by blown tires/overheated brakes. Btw to fix it in case of brake heat, it is not enough to clear the failures. Overheated brakes will not be reset and have to be cooled down. If you just reset the failure (blown tires) the failure will pop up again within seconds as the tires have relief valves that will melt when the brakes are still too hot causing the tires to deflate. So correct procedure is to cool down the brakes and then maintenance the tires. After that your Boeing will move again.

Cheers

T.

8 hours ago, andreh said:

In the PMDG you can blow your tires and overheat the brakes without turning on failures. And PMDG isn't "sensitive", it's realistic. If you're blowing tires or overheating the brakes during normal operations you're doing something wrong.

I'll have to beg to differ with you here. I can stand on the brakes on any of the Boeing series, whether it be -700, -800, -900 or MAX, and narry a tire would be harmed. It just isn't how the system was designed.

The greatest issue in the 737 related to brakes, is temperature (which still wouldn't result in a blown tire) and turn around times (about 65 minutes, if I recall the OpSpec).

19 hours ago, Boeing_Driver said:

Specifically, after landing, whether I've selected autobrakes or nor not, and after I've stowed the reversers, the plane requires about 75% N1 or greater to get it moving (and even then, it's at a crawl).

I've noticed that issue one time in the 737 and it was taxiing to the runway for takeoff. So it wasn't blown tires or fried brakes as others have mentioned (I've flown into KMDW several times in the 737 and always stand on the brakes to stop in time. Never had a blown tire.)

The one time it happened I thought I was stuck on a seam where two textures didn't quite match up vertically. A curb or step the aircraft couldn't climb over. Getting out and looking around I noticed the concrete apron was "weird" where the plane was stuck. Kind of like the concrete was sucked down into a depression that wasn't there.* Did not want to quit the flight and the only way to get out was to Pushback and go around the "illusion." Can't remember the airport but if I do I'll update here in this thread.

* I don't drink.

I was working a flight that returned to the gate due to rejected take off. It was a 737-400. He came back to let the brakes cool down for the requisite amount of time. When I went out to push the aircraft off of the gate I had to inform the captain that he wasn't going anywhere. Both tires on the right main gear were flat. The mechanic said the relief plugs had let go due to overheating. 

30 minutes ago, mwilk said:

I was working a flight that returned to the gate due to rejected take off. It was a 737-400. He came back to let the brakes cool down for the requisite amount of time. When I went out to push the aircraft off of the gate I had to inform the captain that he wasn't going anywhere. Both tires on the right main gear were flat. The mechanic said the relief plugs had let go due to overheating. 

If it was a true RTO, those are rather violent. It wouldn't surprise me if they had blown the plugs.