ZDC controller experienced near midair collision at 12000 ft between a crj and A319 with aircraft ta...

Attributes
ACN	619132
Time
Date	200405
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	navaid : phl.vor
State Reference	PA
Altitude	msl single value : 12000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdc.artcc
Operator	common carrier : air carrier
Make Model Name	A319
Operating Under FAR Part	Part 121
Flight Phase	descent : intermediate altitude
Route In Use	arrival : profile descent arrival star : n/s
Flight Plan	IFR
Aircraft 2
Controlling Facilities	artcc : zdc.artcc
Operator	common carrier : air carrier
Make Model Name	Regional Jet CL65, Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Experience	controller military : 4 controller non radar : 3 controller radar : 6 controller time certified in position1 : 4
ASRS Report	619132
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	conflict : nmac non adherence : clearance non adherence : far non adherence : required legal separation other spatial deviation
Independent Detector	atc equipment : conflict alert aircraft equipment : tcas other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	faa : investigated
Miss Distance	horizontal : 0 vertical : 0
Supplementary
Problem Areas	ATC Human Performance Flight Crew Human Performance
Primary Problem	ATC Human Performance
Air Traffic Incident	Pilot Deviation Operational Error

Narrative:

Aircraft #1 was on a profile descent. Aircraft #2 was a departure off of phl. Aircraft #2 was observed turning into aircraft #1 at same altitude. Aircraft #1 responded to TCASII.

Original NASA ASRS Text

Title: ZDC CTLR EXPERIENCED NMAC AT 12000 FT BTWN A CRJ AND A319 WITH ACFT TAKING EVASIVE ACTION.

Narrative: ACFT #1 WAS ON A PROFILE DSCNT. ACFT #2 WAS A DEP OFF OF PHL. ACFT #2 WAS OBSERVED TURNING INTO ACFT #1 AT SAME ALT. ACFT #1 RESPONDED TO TCASII.

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.

ZDC controller experienced near midair collision at 12000 ft between a crj and A319 with aircraft taking evasive action.