Air Traffic Control Fully Certified
Communication Breakdown; Confusion; Situational Awareness
ATC Issue All Types; Conflict Airborne Conflict
General None Reported / Taken
ATC Equipment / Nav Facility / Buildings; Human Factors; Procedure
A Navajo departed CBF northbound; opposite direction to a VFR Cherokee being vectored for sequencing to OMA. The Navajo climbed into the Class C airspace and became a collision hazard for the Cherokee. The Cherokee was issued traffic and got the Navajo in sight just prior to the CA going off. The Navajo called to pick up his IFR at which point he was climbing out of 039 and still inside Class C airspace. I informed him of the dimensions of the airspace. The pilot said he didn't fly into CBF very often and was sorry. CBF is a very busy GA airport with a growing pilot education program. It is only about 7 miles from OMA which at times can be very busy. Knowledge of aircraft planning to depart would allow controllers to plan and control accordingly. To this end a 'Remote Control Communications Equipment' (RCO) on the airport would allow timely IFR clearances and cancellations.
R90 Controller described a Class C infraction/conflict when VFR traffic departing CBF awaiting an IFR clearance climbed into Class C and caused the event; the reporter suggested an RCO be installed at CBF for improved ATC planning.