What was the pre-COVID MC beverage rule?
It changed over the years, but pre-COVID in 2017 AA stopped full beverage service in Y on flights under 250mi. Main cabin service was limited to small bottles of water or a cup of juice, although more options were supposed to be available on request.
https://viewfromthewing.com/american...ective-june-1/
As always, the actual service provided onboard was somewhat inconsistent in my experience.
-FlyerBeek