Alaska Airlines has a fleet coverage ratio of 72.2% with Starlink installed, and rollout status is 'installed'. Despite zero observed flights with confirmed Starlink on the EUG->FAT route, the critical scoring rule mandates the probability not fall below the fleet ratio for airlines with installed status and fleet coverage above 50%. No recent news or community sightings affect this route specifically, so the probability is anchored at the fleet coverage ratio of 0.722. Confidence is medium due to lack of direct route observations but strong fleet-level evidence.