ARTCC radar controller misread the flight progress strip on a GA BE02 and thought it was an LR24 and climbed an air carrier B757 through the BE02's altitude with less than standard separation.

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Attributes
ACN	360940
Time
Date	199702
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : gve
State Reference	VA
Altitude	msl bound lower : 24000 msl bound upper : 24000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdc tower : jfk
Operator	common carrier : air carrier
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Aircraft 2
Operator	general aviation : personal
Make Model Name	Beech 1900
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar pilot : cfi
Experience	controller non radar : 3 controller radar : 12 flight time total : 380
ASRS Report	360940
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : airborne less severe non adherence : required legal separation
Independent Detector	atc equipment other atc equipment : unspecified other controllera
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Miss Distance	horizontal : 21000 vertical : 0
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

B757 was on climb out from iad to FL230. BE02 was in level flight at FL240, approximately 7 mi in front of the B757. I climbed the B757 to FL270 behind the BE02 because I had misread the flight progress strip and was under the impression that the BE02 was an LR24. I discovered my mistake too late to prevent the loss of separation.

Original NASA ASRS Text

Title: ARTCC RADAR CTLR MISREAD THE FLT PROGRESS STRIP ON A GA BE02 AND THOUGHT IT WAS AN LR24 AND CLBED AN ACR B757 THROUGH THE BE02'S ALT WITH LTSS.

Narrative: B757 WAS ON CLBOUT FROM IAD TO FL230. BE02 WAS IN LEVEL FLT AT FL240, APPROX 7 MI IN FRONT OF THE B757. I CLBED THE B757 TO FL270 BEHIND THE BE02 BECAUSE I HAD MISREAD THE FLT PROGRESS STRIP AND WAS UNDER THE IMPRESSION THAT THE BE02 WAS AN LR24. I DISCOVERED MY MISTAKE TOO LATE TO PREVENT THE LOSS OF SEPARATION.

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.