I've been looking at some AA First fares for travel from SEA to LHR. Example: LHR to SEA, 4/1/22 to 4/8/22, Fare basis code INW4C7S4/EUUP. When I click to see Fare Rules in EF, I get a near-blank screen. See below. Any idea what's wrong here?
Large number of fares in this market -- apparently 126 filed by AA on SEA-LHR. 43 of those in First (based on what I see when checking only the First checkbox. I need to read fare rules to figure out what could apply to my journey.