Cannot turn on APU after landing
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There's been no intentional changes on our side with regards to the APU logic in the recent F28 Professional updates.
It'll be worth double checking that you have the GEN 3 and APU AIR switches both set to OFF before starting the APU (the latter will prevent the APU starter from triggering if left in the ON position). Note that the APU MAIN switch should also be left in the ON position for 10 seconds before pressing the START button, as that allows the APU intake door to open.
Hope that helps.
Mark - Just Flight
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Happened again today, but this time I noticed that the APU main swith was in the ON position when landing. I must have forgotten to turn it off after starting the engines. (You are supposed to let the APU wind completely down before turning it off, so I tend to finish the before taxi flow first, making it easy to forget).
I got the APU to start while taxiing in by turning the APU master off and waiting a bit, then trying again.
