Narrative:

Aircraft Y delayed responding to a turn and a climb clearance to advise he had 'a TCASII on an aircraft X, 5 mi, 400 ft above us?' I reissued the clearance, but by then it was too late. Aircraft Y was mishandled prior to talking to me. He did not know why he was at this altitude in WX and chop.

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Original NASA ASRS Text

Title: ZID ARTCC RADAR CTLR PROVIDING VECTORS TO 2 ACR ACFT LOST RADAR SEPARATION.

Narrative: ACFT Y DELAYED RESPONDING TO A TURN AND A CLB CLRNC TO ADVISE HE HAD 'A TCASII ON AN ACFT X, 5 MI, 400 FT ABOVE US?' I REISSUED THE CLRNC, BUT BY THEN IT WAS TOO LATE. ACFT Y WAS MISHANDLED PRIOR TO TALKING TO ME. HE DID NOT KNOW WHY HE WAS AT THIS ALT IN WX AND CHOP.

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.