During the "In-Range" checklist, I get an ATS Fail alert during the "APU / PACKS TRANSITION" line of the checklist (I'm using the automatic copilot to help with some of the checklist).
I'm not sure what I'm doing wrong, or what I need to do differently in order to prevent an ATS failure from occurring. I've seen a N1 TGT in the Thrust Limit menu, but that doesn't seem to work (unless maybe I'm setting an invalid target).
Any input would be appreciated!