Air carrier climbed through an occupied altitude resulting in less than standard separation.

Attributes
ACN	131558
Time
Date	198912
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : djb
State Reference	OH
Altitude	msl bound lower : 23000 msl bound upper : 23000
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zob tower : dca
Operator	general aviation : corporate
Make Model Name	Small Transport, Low Wing, 2 Turboprop Eng
Flight Phase	cruise other
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Experience	controller non radar : 7 controller radar : 6
ASRS Report	131558
Person 2
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	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
Consequence	Other
Miss Distance	horizontal : 24000 vertical : 0
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

I was the atcs working the windsor radar position. Small transport X en route on J554 at FL230 eastbound in my sector was under my control. Air carrier Y departed dtw en route to jfk via J554 was cleared to FL230 and told to go fast as possible for flow restriction to jfk. Air carrier Y was then cleared to FL290 but loss of separation occurred when he overtook the small transport while climbing through FL230. I attempted to correct the situation by vectoring both aircraft but it was 'too little too late'. I perceived that air carrier Y would climb at a fast rate because of other observation made that day by similar aircraft. Air carrier Y did not climb as fast because he was told to operate at the fastest possible airspeed, thus reducing the climb rate and increasing the ground speed. I did not take corrective action soon enough to prevent the system error.

Original NASA ASRS Text

Title: ACR CLIMBED THROUGH AN OCCUPIED ALT RESULTING IN LESS THAN STANDARD SEPARATION.

Narrative: I WAS THE ATCS WORKING THE WINDSOR RADAR POSITION. SMT X ENRTE ON J554 AT FL230 EBND IN MY SECTOR WAS UNDER MY CTL. ACR Y DEPARTED DTW ENRTE TO JFK VIA J554 WAS CLRED TO FL230 AND TOLD TO GO FAST AS POSSIBLE FOR FLOW RESTRICTION TO JFK. ACR Y WAS THEN CLRED TO FL290 BUT LOSS OF SEPARATION OCCURRED WHEN HE OVERTOOK THE SMT WHILE CLIMBING THROUGH FL230. I ATTEMPTED TO CORRECT THE SITUATION BY VECTORING BOTH ACFT BUT IT WAS 'TOO LITTLE TOO LATE'. I PERCEIVED THAT ACR Y WOULD CLIMB AT A FAST RATE BECAUSE OF OTHER OBSERVATION MADE THAT DAY BY SIMILAR ACFT. ACR Y DID NOT CLIMB AS FAST BECAUSE HE WAS TOLD TO OPERATE AT THE FASTEST POSSIBLE AIRSPEED, THUS REDUCING THE CLIMB RATE AND INCREASING THE GND SPEED. I DID NOT TAKE CORRECTIVE ACTION SOON ENOUGH TO PREVENT THE SYSTEM ERROR.

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.