ARTCC radar controller climbs an air carrier aircraft through an occupied altitude. Controller attempted to turn both aircraft to ensure separation, however, the turn was too late and less than standard separation resulted.

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Attributes
ACN	334077
Time
Date	199604
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : pxv
State Reference	IN
Altitude	msl bound lower : 29100 msl bound upper : 29100
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zid
Operator	common carrier : air carrier
Make Model Name	Challenger Jet Undifferentiated or Other Model
Operating Under FAR Part	Part 135
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Heavy Transport, Low Wing, 4 Turbojet Eng
Flight Phase	descent other
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	oversight : supervisor
Qualification	controller : radar
Experience	controller non radar : 2 controller radar : 5 controller supervisory : 2
ASRS Report	334077
Person 2
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Events
Anomaly	conflict : airborne less severe non adherence : published procedure non adherence : required legal separation
Independent Detector	atc equipment other atc equipment : unspecified other controllera
Resolutory Action	controller : issued new clearance other
Consequence	Other
Miss Distance	horizontal : 18000 vertical : 700
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Aircraft X climbing to FL310 and air carrier Y, a DC8 inbound to sdf. Controller turned both aircraft and tried to climb air carrier X, a challenger jet, and descend air carrier Y. Vertical separation was lost (700 ft and 3 mi). The controller failed to provide lateral separation prior to attempting to swap vertical altitudes.

Original NASA ASRS Text

Title: ARTCC RADAR CTLR CLBS AN ACR ACFT THROUGH AN OCCUPIED ALT. CTLR ATTEMPTED TO TURN BOTH ACFT TO ENSURE SEPARATION, HOWEVER, THE TURN WAS TOO LATE AND LTSS RESULTED.

Narrative: ACFT X CLBING TO FL310 AND ACR Y, A DC8 INBOUND TO SDF. CTLR TURNED BOTH ACFT AND TRIED TO CLB ACR X, A CHALLENGER JET, AND DSND ACR Y. VERT SEPARATION WAS LOST (700 FT AND 3 MI). THE CTLR FAILED TO PROVIDE LATERAL SEPARATION PRIOR TO ATTEMPTING TO SWAP VERT ALTS.

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.