Narrative:

During the mosey 5 STAR to cvg, we were flying toward the cvg VOR at 10000 ft MSL assigned, and awaiting a vector to downwind (right) to runway 18R. We remember hearing the controller say something, then he said 'flight X check for stuck microphone.' I realized we were close to on top of runway 18R and first officer (who was flying) immediately complied with controller's request to turn left to heading of 300 degrees. I looked at the TCASII and saw the closest target at 5 mi, 10 O'clock position and 500 ft above. Of note is that my push-to-talk switch on yoke was deferred. I was making every effort to use the other switch on console but may have inadvertently used it. I recommend that in future, deferred push-to-talk switches be disabled so that they can't be accidentally used.

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Original NASA ASRS Text

Title: A CL65 FLC MISSES APCH CTLR'S CLRNC FOR A DSCNT AND HDG CHANGE WHEN ACFT EXPERIENCES A STUCK MIKE. THE CAPT, PF, HAD BEEN USING AN MEL'ED YOKE PUSH-TO-TALK SWITCH INBOUND TO CVG, KY.

Narrative: DURING THE MOSEY 5 STAR TO CVG, WE WERE FLYING TOWARD THE CVG VOR AT 10000 FT MSL ASSIGNED, AND AWAITING A VECTOR TO DOWNWIND (R) TO RWY 18R. WE REMEMBER HEARING THE CTLR SAY SOMETHING, THEN HE SAID 'FLT X CHK FOR STUCK MIKE.' I REALIZED WE WERE CLOSE TO ON TOP OF RWY 18R AND FO (WHO WAS FLYING) IMMEDIATELY COMPLIED WITH CTLR'S REQUEST TO TURN L TO HDG OF 300 DEGS. I LOOKED AT THE TCASII AND SAW THE CLOSEST TARGET AT 5 MI, 10 O'CLOCK POS AND 500 FT ABOVE. OF NOTE IS THAT MY PUSH-TO-TALK SWITCH ON YOKE WAS DEFERRED. I WAS MAKING EVERY EFFORT TO USE THE OTHER SWITCH ON CONSOLE BUT MAY HAVE INADVERTENTLY USED IT. I RECOMMEND THAT IN FUTURE, DEFERRED PUSH-TO-TALK SWITCHES BE DISABLED SO THAT THEY CAN'T BE ACCIDENTALLY USED.

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.