ZDC controller issues climb clearance to 2 air carrier's on vector with ensuring lateral separation.

Attributes
ACN	518284
Time
Date	200107
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : ric.airport
State Reference	VA
Altitude	msl single value : 24000
Environment
Flight Conditions	Marginal
Weather Elements	Rain Thunderstorm
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdc.artcc
Operator	common carrier : air carrier
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	descent : approach
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Controlling Facilities	artcc : zdc.artcc
Operator	common carrier : air carrier
Make Model Name	EMB ERJ 145 ER&LR
Operating Under FAR Part	Part 121
Flight Phase	cruise : enroute altitude change
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Experience	controller radar : 12.7 controller time certified in position1 : 12 controller time certified in position2 : 2 flight time total : 40
ASRS Report	518284
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	conflict : airborne less severe non adherence : required legal separation non adherence : published procedure
Independent Detector	atc equipment : conflict alert atc equipment other atc equipment : radar aircraft equipment : tcas other controllera
Resolutory Action	controller : issued new clearance flight crew : took evasive action
Consequence	faa : investigated
Miss Distance	horizontal : 7800 vertical : 800
Supplementary
Problem Areas	ATC Human Performance
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

I was vectoring aircraft #1 for sequencing for dca (to continue descent). Aircraft #2 was being vectored for climb (destination lga). They were separated until I climbed aircraft #2. When I saw the aircraft involved losing standard separation, I issued immediate turns to both aircraft away from each other. The 'conflict alert' did not activate until the error actually occurred.

Original NASA ASRS Text

Title: ZDC CTLR ISSUES CLB CLRNC TO 2 ACR'S ON VECTOR WITH ENSURING LATERAL SEPARATION.

Narrative: I WAS VECTORING ACFT #1 FOR SEQUENCING FOR DCA (TO CONTINUE DSCNT). ACFT #2 WAS BEING VECTORED FOR CLB (DEST LGA). THEY WERE SEPARATED UNTIL I CLBED ACFT #2. WHEN I SAW THE ACFT INVOLVED LOSING STANDARD SEPARATION, I ISSUED IMMEDIATE TURNS TO BOTH ACFT AWAY FROM EACH OTHER. THE 'CONFLICT ALERT' DID NOT ACTIVATE UNTIL THE ERROR ACTUALLY OCCURRED.

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.