Narrative:

Prior to the event; the field had been IFR for most of the day and the snowplows were out brushing the runway. During the time of the event; it was VFR. Unit xa called me up and told me to show him as part of unit xc. I queried him on his position on the airfield and he told me at the north deice pad. What I failed to realize was that unit xc had been approved on runway 2L with tower. I told him 'roger; unit xa; I will show you as part of unit xc and company.' a few minutes later; tower was telling unit xc to exit the runway for a departure. She saw there was another snow plow on the runway and said unit xc and company plus 1 exit runway 2L. This is when I realized that I should have told unit xa to hold short of runway 2L and contact tower. Part of the event was my fault; but on the other side of it; I never verbally approved unit xa on runway 2L. All in all; the event was very minor; but it alerted me and in the near future; I will be careful when approving vehicles to be apart of other companies.the biggest lesson I learned is scan scan scan and understand what a vehicle is asking before approving or saying roger. This would have prevented the vehicle from going onto the runway without approval from tower.

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Original NASA ASRS Text

Title: Ground Controller reported he failed to properly coordinate a snowplow with the Tower Controller; resulting in a runway incursion.

Narrative: Prior to the event; the field had been IFR for most of the day and the snowplows were out brushing the runway. During the time of the event; it was VFR. Unit XA called me up and told me to show him as part of Unit XC. I queried him on his position on the airfield and he told me at the North Deice Pad. What I failed to realize was that Unit XC had been approved on Runway 2L with Tower. I told him 'Roger; Unit XA; I will show you as part of Unit XC and company.' A few minutes later; Tower was telling Unit XC to exit the runway for a departure. She saw there was another snow plow on the runway and said Unit XC and company plus 1 exit Runway 2L. This is when I realized that I should have told Unit XA to hold short of Runway 2L and contact Tower. Part of the event was my fault; but on the other side of it; I never verbally approved Unit XA on Runway 2L. All in all; the event was very minor; but it alerted me and in the near future; I will be careful when approving vehicles to be apart of other companies.The biggest lesson I learned is scan scan scan and understand what a vehicle is asking before approving or saying roger. This would have prevented the vehicle from going onto the runway without approval from Tower.

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.