EXTRA BOARD by Metro Digital Resources Librarian • April 14, 2016 A pool of operators maintained to work non-biddable AM & PM tripper combinations and to fill assignments and vacancies caused by sickness, missouts, vacations, leaves, etc.; operators who have no assigned run but are used to cover runs left open. Share:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Reddit (Opens in new window)Click to email this to a friend (Opens in new window)Click to print (Opens in new window)Like this:Like Loading... Related