Cab't calculate elevation profile

[loop_n_roll 7]

Planning flight to KATL via CHPPR to runway 9L. I get the above message and when pressing the red banner I get the explanation that the flight plan elevation at 11,000 feet violates the restriction of 13,000feet. However, the flight plan window shows an elevation of 13,000 feet. Have I something mixed up?

[albar965 1,047]

Nothing wrong on your side. 13.000 ft or above should work fine. Keep in mind that LNM allows only one cruise altitude and will not calculate a climb to the restriction in the STAR.

Seems like a bug in LNM with the at (not at or above) 13.000 ft restriction at CHPPR.
A flight plan elevation at or above 13.000 ft should normally work. Below will not.

Raising to 13.500 or above is a workaround.

Will check.

Alex

[loop_n_roll 7]

Thank you for your reply. I had no sooner posted when I went back to LNM and immediately found the problem. I had failed to put in a cruise altitude above the restriction. Previous flight plan was a VFR flight and I forgot to change the cruise altitude.

[albar965 1,047]

12 hours ago, loop_n_roll said:

Thank you for your reply. I had no sooner posted when I went back to LNM and immediately found the problem. I had failed to put in a cruise altitude above the restriction. Previous flight plan was a VFR flight and I forgot to change the cruise altitude.

Yes. Cruise altitude has to be above all restrictions.

Nevertheless, you found a bug in LNM.
A quite obscure one too.🙃

Alex