Return of Tri-Rail 501 with LOUD K5LA and more at Miami Airport Station!

(Skip to 4:52 for 501's departure) After hearing about 501 leading P636, I knew I wanted to see it lead later on P647's ECS. While at the station, I caught Tri-Rails P645 and P648, and between those two trains P647 with 822 and 501 arrived. While P648 was departing, a British Airways A380 went right over it. As soon as P648 departed, empty P647 got the signal back to Hialeah Yard where it would be stored for the night. As it was about to leave, 822 had some brake issues and the crew had to walk back to the engine to fix it. After about two minutes, 501's train finally departed the station, and you can hear it's incredibly loud K5LA for the crossing as it departs. It easily has the loudest horn on Tri-Rail, likely even louder than 507. It's great that 501 is back after more than six years out of service!