A319 flight crew has loss of separation during approach to iad.

Attributes
ACN	718884
Time
Date	200612
Local Time Of Day	0001 To 0600
Place
Locale Reference	atc facility : pct.tracon
State Reference	VA
Altitude	msl single value : 3000
Environment
Flight Conditions	VMC
Aircraft 1
Controlling Facilities	tracon : pct.tracon
Operator	common carrier : air carrier
Make Model Name	A319
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Route In Use	approach : visual arrival : on vectors
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tracon : pct.tracon
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	descent : approach
Route In Use	approach : visual
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Experience	flight time last 90 days : 130 flight time total : 6000 flight time type : 6000
ASRS Report	718884
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	conflict : airborne less severe non adherence : required legal separation other spatial deviation
Independent Detector	other flight crewa other flight crewb
Resolutory Action	flight crew : took precautionary avoidance action
Supplementary
Problem Areas	Environmental Factor Flight Crew Human Performance ATC Human Performance
Primary Problem	ATC Human Performance

Narrative:

We were on vectors to final in night VMC with 35 KTS of overshooting winds. ATC kept us fast and gave us a late vector to final (heading 010 degrees) to intercept the localizer runway 1L at iad. Parallel traffic was about the same distance for runway 1R. We started our turns in a timely fashion but they gave us a late turn to final; especially considering the overshooting xwinds at 3000-4000 ft. They cleared us for a visual approach and told us to maintain visual separation from the traffic on the parallel runway. The PF had to use 45-60 degrees angle of bank and we still overshot our final approach course and crossed approximately 2/3 the distance to the final approach course for runway 1R. Without the high angle of bank we would have crossed the final for the parallel runway and in any case we came way too close to the parallel traffic. This event should be viewed as an near midair collision that required close to emergency maneuvering to avoid. Without the copilot's timely action the distance between the 2 aircraft would have been much less; including the possibility of the distance becoming zero. The spacing between aircraft was very long and the conditions were night VMC. If we were IMC it could have also been disastrous. No TCAS TA or RA was noted.

Original NASA ASRS Text

Title: A319 FLT CREW HAS LOSS OF SEPARATION DURING APCH TO IAD.

Narrative: WE WERE ON VECTORS TO FINAL IN NIGHT VMC WITH 35 KTS OF OVERSHOOTING WINDS. ATC KEPT US FAST AND GAVE US A LATE VECTOR TO FINAL (HDG 010 DEGS) TO INTERCEPT THE LOC RWY 1L AT IAD. PARALLEL TFC WAS ABOUT THE SAME DISTANCE FOR RWY 1R. WE STARTED OUR TURNS IN A TIMELY FASHION BUT THEY GAVE US A LATE TURN TO FINAL; ESPECIALLY CONSIDERING THE OVERSHOOTING XWINDS AT 3000-4000 FT. THEY CLRED US FOR A VISUAL APCH AND TOLD US TO MAINTAIN VISUAL SEPARATION FROM THE TFC ON THE PARALLEL RWY. THE PF HAD TO USE 45-60 DEGS ANGLE OF BANK AND WE STILL OVERSHOT OUR FINAL APCH COURSE AND CROSSED APPROX 2/3 THE DISTANCE TO THE FINAL APCH COURSE FOR RWY 1R. WITHOUT THE HIGH ANGLE OF BANK WE WOULD HAVE CROSSED THE FINAL FOR THE PARALLEL RWY AND IN ANY CASE WE CAME WAY TOO CLOSE TO THE PARALLEL TFC. THIS EVENT SHOULD BE VIEWED AS AN NMAC THAT REQUIRED CLOSE TO EMER MANEUVERING TO AVOID. WITHOUT THE COPLT'S TIMELY ACTION THE DISTANCE BTWN THE 2 ACFT WOULD HAVE BEEN MUCH LESS; INCLUDING THE POSSIBILITY OF THE DISTANCE BECOMING ZERO. THE SPACING BTWN ACFT WAS VERY LONG AND THE CONDITIONS WERE NIGHT VMC. IF WE WERE IMC IT COULD HAVE ALSO BEEN DISASTROUS. NO TCAS TA OR RA WAS NOTED.

Data retrieved from NASA's ASRS site as of January 2009 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.