We really got into this after watching the first episode, even though there are so many obvious errors it's ridiculous. You really have to leave your common sense at the door or know nothing about aircraft to find this in any way believable. If the Captain just Squawked 7500 as soon as he was aware what was going on the whole show would be wrapped up in the first episode. However - if you just go with it you'll find they manage to create a suitably tense atmosphere which left us wanting more. I think the soundtrack helped here a lot. Apple gives us two episodes to be going on with - and to echo another review: why? Are they scared we won't resubscribe or something? That is so annoying! Just dump the whole thing Apple and let us watch it. Disney + is the same.
Anyway in summary - leave your common sense at the door and enjoy!
Anyway in summary - leave your common sense at the door and enjoy!