Narrative:

While operating as first officer we were instructed by dca tower to move up and hold short of runway 1; to which I replied; 'hold short of 1; air carrier X.' we then proceeded to run the before takeoff checklists as per our company procedures; this kept my head down inside the cockpit to make sure all items were being completed. When finished; I looked up and we were lining up with runway 1. We then heard the controller issue a go-around; which immediately alerted the captain and myself that something wasn't quite right. The captain asked me whether we were instructed to line up and wait; to which my reply was that I wasn't sure. I was task saturated at the time finishing the engine start; running checklists and working the radios to remember with any conviction if we were in fact instructed to line up and wait. We were issued a takeoff clearance shortly thereafter. I believe there were a few factors contributing to this moment of uncertainty; including a relatively new company checklist with heavy emphasis on completing items at a critical phase of operating the aircraft right before takeoff (when approaching number one for takeoff and while taking an active runway). This kept my attention away from the captain taking an active runway as well as keeping me very busy at a critical phase of flight. Also this happened on the fourth leg on a scheduled 13.5 hour duty day. We began the day with a xb:30 early van in the morning; with the crew being awake since xa:30; so at this point we'd been awake for over 13 hours.

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Original NASA ASRS Text

Title: An Air Carrier First Officer reported that the Captain taxied into position on DCA Runway 1 after being cleared to 'move up and hold short of Runway 1'. The First Officer was completing checklist and the Captain thought the clearance was 'Line Up and Wait Runway 1.'

Narrative: While operating as First Officer we were instructed by DCA Tower to move up and hold short of runway 1; to which I replied; 'hold short of 1; Air Carrier X.' We then proceeded to run the Before Takeoff checklists as per our Company procedures; this kept my head down inside the cockpit to make sure all items were being completed. When finished; I looked up and we were lining up with Runway 1. We then heard the Controller issue a go-around; which immediately alerted the Captain and myself that something wasn't quite right. The Captain asked me whether we were instructed to line up and wait; to which my reply was that I wasn't sure. I was task saturated at the time finishing the engine start; running checklists and working the radios to remember with any conviction if we were in fact instructed to line up and wait. We were issued a takeoff clearance shortly thereafter. I believe there were a few factors contributing to this moment of uncertainty; including a relatively new Company checklist with heavy emphasis on completing items at a critical phase of operating the aircraft right before takeoff (when approaching number one for takeoff and while taking an active runway). This kept my attention away from the Captain taking an active runway as well as keeping me very busy at a critical phase of flight. Also this happened on the fourth leg on a scheduled 13.5 hour duty day. We began the day with a XB:30 early van in the morning; with the crew being awake since XA:30; so at this point we'd been awake for over 13 hours.

Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.