Regional Jet 200 ER/LR (CRJ200)
Air Traffic Control Fully Certified
Situational Awareness
ATC Issue All Types; Airspace Violation All Types; Conflict Airborne Conflict; Deviation / Discrepancy - Procedural Published Material / Policy
Air Traffic Control Issued New Clearance; Flight Crew Took Evasive Action
Procedure; Weather; Human Factors; Airspace Structure
I was working the Final position and we were in simultaneous ILS approach airspace. A CRJ2 was level in the downwind at 090 per our SOP and needed to fly another 5 miles or so before I could base the aircraft. SLC was reporting marginal VFR conditions but we had been on ILS approaches all day. I had noted low level VFR traffic earlier (at 5;800 FT) and thought that maybe conditions were improving somewhat; as bases had previously been reported just below 6;000 FT. I had two other aircraft that I needed to get turned in and cleared for the ILS approach; which I was just finishing up when the CA went off for the CRJ2 and a then VFR aircraft squawking 1200 that I was not talking to. The VFR aircraft had climbed into Bravo airspace without establishing radio communications and receiving a clearance and was showing level at 8;500 FT; about a mile and a half to the southeast of the RJ; level at 9;000 FT. I issued a traffic alert to the CRJ2 and the pilot advised 'we are looking; we are descending now for an RA; and we got him in sight.'  I asked the RJ if 8;500 FT was a good altitude on the aircraft because I thought it was a little strange that the TCAS issued a descent. The pilot said it was and descended to 8;100 FT in an 8;500 FT MVA. When I observed the RJ passing 8;300 FT I issued a Low Altitude Alert to the aircraft. The pilot replied; 'Roger; we are climbing; we have the terrain in sight.' I advised the pilot to maintain their own terrain/obstruction clearance; and when able maintain 9;000. Shortly after passing the RJ; the pilot of the VFR aircraft (a BE35) called up for services. I told him that he needed a Bravo clearance before entering the airspace to which he replied that he was sorry and was trying to remain clear of clouds. I issued a brasher warning to the pilot of the BE35. This pilot; and more broadly; general aviation pilots; need to understand the different rules for different classes of airspace.
S56 Controller reported a TCAS RA event by an IFR CRJ arrival into SLC when a VFR aircraft entered Class B without clearance; reportedly because of cloud avoidance maneuvering.