Narrative:

I received a handoff on aircraft Y sbound climbing to FL230 requesting FL410. Having no traffic for him; I climbed hm to FL410. Several mins later; I got a handoff on aircraft X at FL390. Nearly 10 mins after I climbed aircraft Y; rvsm separation was lost approximately 21 mi southeast of lexington; ky.

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Original NASA ASRS Text

Title: ZID CTLR EXPERIENCED OPERROR AT APPROX FL390 WHEN CLBING ACFT THROUGH OCCUPIED ALT.

Narrative: I RECEIVED A HDOF ON ACFT Y SBOUND CLBING TO FL230 REQUESTING FL410. HAVING NO TFC FOR HIM; I CLBED HM TO FL410. SEVERAL MINS LATER; I GOT A HDOF ON ACFT X AT FL390. NEARLY 10 MINS AFTER I CLBED ACFT Y; RVSM SEPARATION WAS LOST APPROX 21 MI SE OF LEXINGTON; KY.

Data retrieved from NASA's ASRS site as of January 2009 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.