Originally Posted by flayum

Thanks for the reply! That's very reassuring.

Is this because it's a D1-marketed flight, so presumably they would prioritize keeping this D1? I feel like I've seen plenty of horror stories about D1-to-FC downgrades due to equipment swaps, but maybe because those were mixed D1/FC routes and I'd be safe on JFK-SFO (barring a last-minute change to IRROPs, etc)?