ZDC controller lost separation between climbing and en route aircraft.

Attributes
ACN	578788
Time
Date	200304
Day	Wed
Local Time Of Day	1201 To 1800
Place
State Reference	VA
Altitude	msl bound lower : 29000 msl bound upper : 31000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdc.artcc
Operator	common carrier : air carrier
Make Model Name	Regional Jet 200 ER&LR
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Aircraft 2
Controlling Facilities	artcc : zdc.artcc
Operator	general aviation : corporate
Make Model Name	Citationjet, C525/C526
Operating Under FAR Part	Part 91
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Experience	controller radar : 2 controller time certified in position1 : 2
ASRS Report	578788
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	conflict : airborne less severe non adherence : published procedure non adherence : required legal separation
Independent Detector	atc equipment : conflict alert other controllera
Resolutory Action	controller : issued new clearance
Consequence	faa : investigated
Miss Distance	horizontal : 20400 vertical : 1700
Supplementary
Problem Areas	Aircraft ATC Human Performance Flight Crew Human Performance
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Aircraft at FL290 level cruise. Other aircraft was climbing to FL310 at slow rate of climb. Turns were issued, separation lost. If aircraft are climbing/descending at a rate below normal for the conditions, ATC should be notified, without having to solicit.

Original NASA ASRS Text

Title: ZDC CTLR LOST SEPARATION BTWN CLBING AND ENRTE ACFT.

Narrative: ACFT AT FL290 LEVEL CRUISE. OTHER ACFT WAS CLBING TO FL310 AT SLOW RATE OF CLB. TURNS WERE ISSUED, SEPARATION LOST. IF ACFT ARE CLBING/DSNDING AT A RATE BELOW NORMAL FOR THE CONDITIONS, ATC SHOULD BE NOTIFIED, WITHOUT HAVING TO SOLICIT.

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.