Sign in to follow this  


Recommended Posts

What does "PTH DES UNAVAILABLE" mean. After setting a lower alt, just before TOD, The aircraft goes into a '3000 desent at TOD and that Message appears in the FMC.Dave FisherCYYZ

Share this post

Link to post
Help AVSIM continue to serve you!
Please donate today!

Doesn't it mean that the aircraft isn't able to meet your next altitude constraint without exceeding a certain V/S. Can't remember offhand what the limit is but I think I've seen it mentioned here somewhere before.

Share this post

Link to post

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this