Comments are due by January 23 on a proposal to increase the size of the Minneapolis Class B airspace, namely expanding its upper limit to 10,000 feet msl. Traffic growth, recent TCAS alerts and the advent of a new runway are the main factors behind the proposal. In the first half of last year there were 17 TCAS events reported in the airspace to be included in the proposed changes. Runway 17/25, scheduled to open in November, will result in aircraft conducting IFR operations outside the present Class B configuration. Contact the FAA’s Steve Rohring at (202) 267-8783.