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