A B737-400 ON APCH TO CLT BACK COURSE APCH RWY 23 EXPERIENCES AN UNCOMMANDED TURN TO THE L. ACFT WAS IN DSCNT AND DURING RECOVERY MANEUVER THE FLT ENCROACHED UPON AIRSPACE DELEGATED TO AN ACR DH8. BOTH THE APCH CTLR AND TCASII ALERTS THE CREW TO THE CONFLICT.

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DURING APCH AT CLT ARR FROM MAJIC STAR ON A VECTOR OF 210 DEGS FOR THE LOC BACK COURSE RWY 23 CLT. AT APPROX 16.5 DME (CLT VOR) DSNDING FROM 6000 FT TO 4000 FT; ARPT AND RWY ENVIRONMENT IN SIGHT. MODE CTL PANEL SET UP FOR AUTOPLT WAS SET UP IN HEADING HOLD AND LEVEL CHANGE. CAPT WAS FLYING ACFT; CLRED APCH ON HDG 210 DEGS. AS FO; I WAS OUTSIDE VISUALLY CLRING FOR TFC AND MAINTAINING VISUAL CONTACT WITH ARPT. ALSO XCHKING RADAR INSIDE FOR WX WHICH WAS ON MISSED APCH PATH. I FELT THE ACFT GO INTO AN UNEXPECTED L TURN. I VISUALLY CONFIRMED CAPT WAS IN CTL AND ATTEMPTING TO DISCONNECT AUTOPLT. AS DIRECTED BY CAPT I STARTED TO REQUEST ATC FOR CORRECTIVE VECTOR. ATC CAME THROUGH FIRST; DIRECTED AN IMMEDIATE CLB TO 5000 FT. CAPT WAS FINALLY ABLE TO DISCONNECT AUTOPLT AND BEGAN AN IMMEDIATE CLB THEN RECEIVED A TCASII RESOLUTION ALERT. CAPT WENT TO FIREWALL PWR 30 DEG PITCH CLB TO 5000 FT. CLR OF CONFLICT; A SUBSEQUENT ROUTINE APCH AND LNDG WAS MADE AT CLT. APPROPRIATE LOGBOOK ENTRIES MADE UPON ARR AT GATE.