The log file was too large to attach.  Here are the lines from UPS850 first communication. 03:21:25 * UPS850 => ADD HISTORY: UPS850:  Tower, UPS 850 with you Runway 25L. 03:21:36 alt: 6693 takeoff: False/False/-2 OWNER_TOWER r: 25L * SKW5906 => STATE CHANGE from STATE_INCOMING to STATE_INCOMING 03:21:36 alt: 6693 takeoff: False/False/-2 OWNER_TOWER r: 25L * SKW5906 => ***** no free terminal Store stat: True 03:21:47 alt: 6693 takeoff: False/False/-2 OWNER_TOWER r: 25L * SKW