Radar separation was lost when air carrier failed to meet climb restriction.

Attributes
ACN	124378
Time
Date	198910
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : tth
State Reference	IN
Altitude	msl bound lower : 31000 msl bound upper : 32600
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zid
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Experience	controller non radar : 2 controller radar : 1
ASRS Report	124378
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	altitude deviation : crossing restriction not met non adherence : clearance non adherence : required legal separation
Independent Detector	atc equipment other atc equipment : unspecified other controllera
Resolutory Action	none taken : insufficient time
Consequence	Other
Miss Distance	horizontal : 21000 vertical : 1600
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Controller lost lateral separation with medium large transport while trying to establish vertical separation. Aircraft at FL310 climbing was advised to be level at FL330 in 2 minutes. It didn't happen. Based on aircraft type and previous rate of climb, controller didn't believe vectors would be necessary. Aircraft climbed less than 500' in last minute before conflict.

Original NASA ASRS Text

Title: RADAR SEPARATION WAS LOST WHEN ACR FAILED TO MEET CLIMB RESTRICTION.

Narrative: CTLR LOST LATERAL SEPARATION WITH MLG WHILE TRYING TO ESTABLISH VERTICAL SEPARATION. ACFT AT FL310 CLIMBING WAS ADVISED TO BE LEVEL AT FL330 IN 2 MINUTES. IT DIDN'T HAPPEN. BASED ON ACFT TYPE AND PREVIOUS RATE OF CLIMB, CTLR DIDN'T BELIEVE VECTORS WOULD BE NECESSARY. ACFT CLIMBED LESS THAN 500' IN LAST MINUTE BEFORE CONFLICT.

Data retrieved from NASA's ASRS site as of August 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.