Here are a few different tips for remembering what the emergency squawk codes mean. Emergency Codes 7500 — Hijacking 7600 — Lost Comms 7700 — Emergency Memory Aid 1 (Thanks to Mike Hill) This one is my favorite, just remember “Hi Jack ! Can’t talk right now, got a… Read more: https://schaeferflight.com/index.php/2018/04/24/remembering-squawk-codes/