I saw recently that there's a 'software glitch' in Delta's system that is also putting 777-300ERs on routes (Delta doesn't have these - no US carrier has these) and 737-200s (another type Delta does not operate) on other routes. Kinda odd to have a glitch like that, especially regarding the CRJ-1000 which isn't even certified yet AFAIK.

How does that happen? Seriously?