NS Southbound Local Freight Train A50 ( Birmingham to Attalla, Al. Turn ) passing through Watts Jct. in Irondale, Al. getting ready to yard their train at Norris Yard after a days switching between Attalla & Birmingham, Al. This days power consists of a trio of PR43C's 4000, 4300, & 4001 being tested in revenue service, they're rebuilt from former NS SD50's by Progress Rail Services & are equipped with a 4,300 Horsepower Caterpillar Engine.