Narrative:

Aircraft Y was on landing roll out on runway 25R with air carrier X on a mile final. The local 1 controller advised aircraft Y to exit the runway at A7. When the local controller realized it wasn't going to work; he sent air carrier X around. Shortly before that a H/763; departed runway 25R. When air carrier X was sent around; the 767 was at the departure end of the runway. As the local assist 1; I called down to the the appropriate approach sector to coordinate a turn for air carrier X to avoid wake turbulence. The approach controller wasn't answering my call. During the time; the flm came behind the local 1 controller and myself and told the controller to get visual separation between air carrier X and the 767; the controller did so. The approach controller finally answered my call; but by that time; air carrier X was already at the departure end of the runway and the flm instructed the local 1 controller to give the standard go-around instructions to air carrier X. The standard instructions are to fly runway heading to 3 DME then turn left heading 200. This was the same flight path the 767 was flying. The aircraft were approximately 2.5 miles apart with visual separation on the same course. The local controller and I were trying to coordinate the turn; but at the direction of the flm; wake turbulence separation was lost. Recommendation; many factors contributed to the loss of separation. I should have used the words 'break for control' to get the approach controller's attention. The local controller should have immediately given a turn to avoid and we would've coordinated later; however; I believe he was hesitant to do so as this is not according to the LOA. The flm should not have instructed the local controller to allow the loss of separation and let us coordinate the turn. The LOA needs to be revised to allow for alternate go-around instructions if we cannot use the standard because of wake turbulence so we don't have to waste time coordinating.

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Original NASA ASRS Text

Title: LAS Local Controller described go-around event on Runway 25R when separation was compromised with a previous departing heavy B767; reported claiming LOA go-around procedures need to be revised.

Narrative: Aircraft Y was on landing roll out on Runway 25R with Air Carrier X on a mile final. The Local 1 Controller advised Aircraft Y to exit the runway at A7. When the Local controller realized it wasn't going to work; he sent Air Carrier X around. Shortly before that a H/763; departed Runway 25R. When Air Carrier X was sent around; the 767 was at the departure end of the runway. As the Local Assist 1; I called down to the the appropriate approach sector to coordinate a turn for Air Carrier X to avoid wake turbulence. The Approach Controller wasn't answering my call. During the time; the FLM came behind the Local 1 Controller and myself and told the Controller to get visual separation between Air Carrier X and the 767; the Controller did so. The Approach Controller finally answered my call; but by that time; Air Carrier X was already at the departure end of the runway and the FLM instructed the Local 1 controller to give the standard go-around instructions to Air Carrier X. The standard instructions are to fly runway heading to 3 DME then turn left heading 200. This was the same flight path the 767 was flying. The aircraft were approximately 2.5 miles apart with visual separation on the same course. The Local controller and I were trying to coordinate the turn; but at the direction of the FLM; wake turbulence separation was lost. Recommendation; many factors contributed to the loss of separation. I should have used the words 'break for control' to get the approach controller's attention. The Local controller should have immediately given a turn to avoid and we would've coordinated later; however; I believe he was hesitant to do so as this is not according to the LOA. The FLM should not have instructed the Local Controller to allow the loss of separation and let us coordinate the turn. The LOA needs to be revised to allow for alternate go-around instructions if we cannot use the standard because of wake turbulence so we don't have to waste time coordinating.

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.