ZDC controller does not ensure separation between a descending CLF2 and an en route B72Q.

Attributes
ACN	513525
Time
Date	200106
Day	Wed
Local Time Of Day	1801 To 2400
Place
Locale Reference	navaid : bal.vortac
State Reference	MD
Altitude	msl single value : 21000
Environment
Flight Conditions	IMC
Light	Night
Aircraft 1
Controlling Facilities	artcc : zdc.artcc
Operator	general aviation : corporate
Make Model Name	Gulfstream II
Operating Under FAR Part	Part 91
Flight Phase	descent : intermediate altitude
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Controlling Facilities	artcc : zdc.artcc
Operator	common carrier : air carrier
Make Model Name	B727 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	cruise : level
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Experience	controller military : 4 controller non radar : 7 controller radar : 3 controller time certified in position2 : 7
ASRS Report	513535
Person 2
Affiliation	company : corporate
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
Resolutory Action	none taken : detected after the fact
Consequence	faa : investigated
Miss Distance	horizontal : 24000 vertical : 800
Supplementary
Problem Areas	ATC Human Performance
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Discontinued lateral separation before vertical separation existed.

Original NASA ASRS Text

Title: ZDC CTLR DOES NOT ENSURE SEPARATION BTWN A DSNDING CLF2 AND AN ENRTE B72Q.

Narrative: DISCONTINUED LATERAL SEPARATION BEFORE VERT SEPARATION EXISTED.

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.