ZID controller lost separation at FL310 after climbing the wrong aircraft.

Attributes
ACN	602035
Time
Date	200312
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	navaid : cvg.vortac
State Reference	KY
Altitude	msl single value : 31000
Environment
Flight Conditions	IMC
Light	Dusk
Aircraft 1
Controlling Facilities	artcc : zid.artcc
Operator	general aviation : corporate
Make Model Name	Gates Learjet Corp Undifferentiated or Other Model
Operating Under FAR Part	Part 91
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Aircraft 2
Controlling Facilities	artcc : zid.artcc
Operator	common carrier : air carrier
Make Model Name	Regional Jet CL65, Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	cruise : level
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Experience	controller military : 4 controller radar : 21 controller time certified in position1 : 2 controller time certified in position2 : 6
ASRS Report	602035
Person 2
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Events
Anomaly	conflict : airborne less severe non adherence : required legal separation
Independent Detector	atc equipment : conflict alert atc equipment other atc equipment : radar other controllera
Resolutory Action	controller : issued new clearance
Consequence	faa : investigated
Miss Distance	horizontal : 24600 vertical : 1700
Supplementary
Problem Areas	ATC Human Performance
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Aircraft #1 called on climbing to FL290 which was good as aircraft #2 level at FL310 was possible traffic down the road. After hearing the tape, I realize that I inadvertently climbed aircraft #1 to FL310. When I noticed aircraft #1 climb through FL290 I took immediate action to descend aircraft #1 and climb aircraft #2 and ended up with 4.5 mi and 1700 ft.

Original NASA ASRS Text

Title: ZID CTLR LOST SEPARATION AT FL310 AFTER CLBING THE WRONG ACFT.

Narrative: ACFT #1 CALLED ON CLBING TO FL290 WHICH WAS GOOD AS ACFT #2 LEVEL AT FL310 WAS POSSIBLE TFC DOWN THE ROAD. AFTER HEARING THE TAPE, I REALIZE THAT I INADVERTENTLY CLBED ACFT #1 TO FL310. WHEN I NOTICED ACFT #1 CLB THROUGH FL290 I TOOK IMMEDIATE ACTION TO DSND ACFT #1 AND CLB ACFT #2 AND ENDED UP WITH 4.5 MI AND 1700 FT.

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.