Jet/Long Ranger/206
Air Traffic Control Fully Certified
Other / Unknown; Situational Awareness
Airspace Violation All Types; Conflict NMAC; Deviation / Discrepancy - Procedural FAR; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Took Evasive Action
Airspace Structure; Human Factors
While working the Z-AR; the helicopter departed NDZ IFR climbing to 1;700; the pilot reported that he was leveling at 1;100 and a C172 was passing overhead less than 100 FT northwest bound! I informed the helicopter pilot that I had a weak primary and for him to confirm that he was clear of the traffic! The C172 was well inside the Class C!
P31 Controller is informed by the pilot of a helicopter under his control that he is leveling to avoid a C172 passing overhead. The C172 had entered the Class C without clearance.