Narrative:

ILS runway 19/23 in use. The crj and lrj were inbound from southwest to cak with both at 5000 ft and approximately 7-8 mi in trail. When the lrj was 9 mi northwest of cak, he asked for runway 19 ILS, so I hurriedly told him to join, since he was close to the localizer. I then took the crj to 4000 ft, then the lrj to 3000 ft, still about 6-7 mi away from each other on perpendicular courses. The lrj went through final so I continued the turn to 260 degrees. I asked if the lrj had the field for visual, since he, 15 mi earlier, reported bases at 8000 ft. He got the field, so I cleared him for visual to runway 19. Then I took the crj to 3000 ft for visual approach, still on a 050 degree heading. I noticed the lrj turning north to akr *7 mi north of cak). I called tower to tell him to break the lrj out. I looked at crj and questioned his altitude and to maintain 4000 ft. I thought at that point that I still had the crj at 4000 ft, but he was descending. I reiterated to the crj to maintain 4000 ft for the traffic going to the wrong airport. Tower puts the lrj on a 270 degree heading and 3000 ft. I had the crj on climbing to 4000 ft on a 090 degree heading (lowest observed on the crj was 3000 ft, and the lowest on lrj was 2700-2800 ft and approximately 3 mi, even though on tape I said to another aircraft '2 mi' to iterate the seriousness of the situation). Both then landed without further incident.

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Original NASA ASRS Text

Title: CAK CTLR OBSERVES PREVIOUSLY CLRED LEARJET TURN TOWARDS WRONG ARPT AND TAKES ACTION TO RESOLVE SIT.

Narrative: ILS RWY 19/23 IN USE. THE CRJ AND LRJ WERE INBOUND FROM SW TO CAK WITH BOTH AT 5000 FT AND APPROX 7-8 MI IN TRAIL. WHEN THE LRJ WAS 9 MI NW OF CAK, HE ASKED FOR RWY 19 ILS, SO I HURRIEDLY TOLD HIM TO JOIN, SINCE HE WAS CLOSE TO THE LOC. I THEN TOOK THE CRJ TO 4000 FT, THEN THE LRJ TO 3000 FT, STILL ABOUT 6-7 MI AWAY FROM EACH OTHER ON PERPENDICULAR COURSES. THE LRJ WENT THROUGH FINAL SO I CONTINUED THE TURN TO 260 DEGS. I ASKED IF THE LRJ HAD THE FIELD FOR VISUAL, SINCE HE, 15 MI EARLIER, RPTED BASES AT 8000 FT. HE GOT THE FIELD, SO I CLRED HIM FOR VISUAL TO RWY 19. THEN I TOOK THE CRJ TO 3000 FT FOR VISUAL APCH, STILL ON A 050 DEG HDG. I NOTICED THE LRJ TURNING N TO AKR *7 MI N OF CAK). I CALLED TWR TO TELL HIM TO BREAK THE LRJ OUT. I LOOKED AT CRJ AND QUESTIONED HIS ALT AND TO MAINTAIN 4000 FT. I THOUGHT AT THAT POINT THAT I STILL HAD THE CRJ AT 4000 FT, BUT HE WAS DSNDING. I REITERATED TO THE CRJ TO MAINTAIN 4000 FT FOR THE TFC GOING TO THE WRONG ARPT. TWR PUTS THE LRJ ON A 270 DEG HDG AND 3000 FT. I HAD THE CRJ ON CLBING TO 4000 FT ON A 090 DEG HDG (LOWEST OBSERVED ON THE CRJ WAS 3000 FT, AND THE LOWEST ON LRJ WAS 2700-2800 FT AND APPROX 3 MI, EVEN THOUGH ON TAPE I SAID TO ANOTHER ACFT '2 MI' TO ITERATE THE SERIOUSNESS OF THE SIT). BOTH THEN LANDED WITHOUT FURTHER INCIDENT.

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.