When selecting a JS41/AT42 flight in ACARS you will now see a prompt asking you to select which aircraft you wish to fly as the JS41 and AT42 are interchangeable. This is only applicable to these flights and all other flights should be flown using the aircraft specified within the schedule.
Any flight logs filed prior to this post and flown using the ATR have been amended

Ooh he's good, isn't he?

Yes very!!