Jump to content

Overspeed in cruise mode


Recommended Posts

Just an observation hasn't ripped the plane apart yet but, Flight plan has speed constraints and altitude constraints, autopilot is following the altitude but as for the speed it isn't. mach .77 is the constraint however it (the Plane)has chosen .838 and nothing I have tried can change it. I have tried right clicking the speed button and setting it manually but no response. I have then left clicked the button back in and still no change. The throttles are set to CL. I did get one master caution but reset it and nothing has changed since. I have also tried reprogramming the contraints in the FMC as well but nothing seems to convince the aircraft to change the speed. It will affect the fuel flow and usage but luckily on this flight I loaded extra fuel. Not sure if this is a high altitude problem as I have not seen this on flights between 14k and 20k altitudes. 

Link to comment
Share on other sites

  • Deputy Sheriffs

Please always provide screenshots of all relevant parts (PFD, ND, FCU, flight plan page in MCDU) so that we can see, in what state your bus was.

 

Link to comment
Share on other sites

1 hour ago, Johnnyo411 said:

Thanks for the quick response. I have made an RTF file with some screenshots. Hope that is what was needed. 

 

 

For computer security reasons we usually don't click on external links.  It would be much better if you could upload a video or screen shots.

 

Sorry for the inconvenience.

 

Best wishes!

 

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. Privacy Policy & Terms of Use