Narrative:

Upon contacting approach, we were advised that we were #6 behind 5 piper single engine aft and asked to slow to 150 KTS. Shortly after, approach changed our sequence to #3 and vectored us to final. Contacted tower just outside veals OM on a visual approach. Told to continue and that we were #3 behind one on the runway and one on short final. Several seconds later, we were cleared to land with one rolling out and one short final. 10-20 seconds later, approximately 3 mi final, TCASII RA issued. TCASII displayed third aircraft directly in front of us +2. Looked outside and saw piper archer directly in front of us at our altitude in line with us and runway 32R. Reported traffic to tower and declared missed approach. She responded that we must be looking at the wrong aircraft. With little time to debate before impact, we initiated a climbing right turn go around. Tower instructed turn to 360 degrees and 2500 ft. On climb out, got second RA presumably triggered from numerous aircraft on right downwind for runway 32R that we were now flying toward. Concurrent with the second RA and a continuation of the right turn to avoid that traffic, the tower issued heading of 040 degrees and then 090 degrees. After established on 090 degree heading, received the third RA for aircraft -2 at 11 O'clock position. Subsequently re-vectored by approach for visual landing without further incident. It is my opinion that the aircraft posing the initial collision hazard was possibly supposed to be landing on runway 32L and xgressed our approach. It is also my opinion, based upon this experience and numerous other visits to cmi, that sharing the pattern with upwards of 10 training aircraft presents a challenge to a safe operation.

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Original NASA ASRS Text

Title: EMJ CREW ON 3 MI FINAL SPOT A PA28 1 MI AHEAD LINING UP WITH RWY 32R INSTEAD OF RWY 32L AT CMI. A HIGH CLOSURE RATE CAUSED THE CREW TO TAKE EVASIVE ACTION.

Narrative: UPON CONTACTING APCH, WE WERE ADVISED THAT WE WERE #6 BEHIND 5 PIPER SINGLE ENG AFT AND ASKED TO SLOW TO 150 KTS. SHORTLY AFTER, APCH CHANGED OUR SEQUENCE TO #3 AND VECTORED US TO FINAL. CONTACTED TWR JUST OUTSIDE VEALS OM ON A VISUAL APCH. TOLD TO CONTINUE AND THAT WE WERE #3 BEHIND ONE ON THE RWY AND ONE ON SHORT FINAL. SEVERAL SECONDS LATER, WE WERE CLRED TO LAND WITH ONE ROLLING OUT AND ONE SHORT FINAL. 10-20 SECONDS LATER, APPROX 3 MI FINAL, TCASII RA ISSUED. TCASII DISPLAYED THIRD ACFT DIRECTLY IN FRONT OF US +2. LOOKED OUTSIDE AND SAW PIPER ARCHER DIRECTLY IN FRONT OF US AT OUR ALT IN LINE WITH US AND RWY 32R. RPTED TFC TO TWR AND DECLARED MISSED APCH. SHE RESPONDED THAT WE MUST BE LOOKING AT THE WRONG ACFT. WITH LITTLE TIME TO DEBATE BEFORE IMPACT, WE INITIATED A CLBING R TURN GAR. TWR INSTRUCTED TURN TO 360 DEGS AND 2500 FT. ON CLBOUT, GOT SECOND RA PRESUMABLY TRIGGERED FROM NUMEROUS ACFT ON R DOWNWIND FOR RWY 32R THAT WE WERE NOW FLYING TOWARD. CONCURRENT WITH THE SECOND RA AND A CONTINUATION OF THE R TURN TO AVOID THAT TFC, THE TWR ISSUED HDG OF 040 DEGS AND THEN 090 DEGS. AFTER ESTABLISHED ON 090 DEG HDG, RECEIVED THE THIRD RA FOR ACFT -2 AT 11 O'CLOCK POS. SUBSEQUENTLY RE-VECTORED BY APCH FOR VISUAL LNDG WITHOUT FURTHER INCIDENT. IT IS MY OPINION THAT THE ACFT POSING THE INITIAL COLLISION HAZARD WAS POSSIBLY SUPPOSED TO BE LNDG ON RWY 32L AND XGRESSED OUR APCH. IT IS ALSO MY OPINION, BASED UPON THIS EXPERIENCE AND NUMEROUS OTHER VISITS TO CMI, THAT SHARING THE PATTERN WITH UPWARDS OF 10 TRAINING ACFT PRESENTS A CHALLENGE TO A SAFE OP.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.