BAE1000 vectored into a TCASII RA in the dca class B airspace.

Attributes
ACN	456171
Time
Date	199911
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : dca.airport
State Reference	DC
Altitude	msl bound lower : 7000 msl bound upper : 9000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : dca.tracon
Operator	general aviation : corporate
Make Model Name	BAe 125 Series 1000
Operating Under FAR Part	Part 91
Navigation In Use	other
Flight Phase	climbout : intermediate altitude
Route In Use	departure : on vectors
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tracon : dca.tracon
Operator	common carrier : air carrier
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Plan	IFR
Person 1
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Qualification	pilot : multi engine pilot : atp
Experience	flight time last 90 days : 65 flight time total : 11000 flight time type : 1200
ASRS Report	456171
Person 2
Affiliation	company : corporate
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument pilot : multi engine
Events
Anomaly	conflict : airborne critical
Independent Detector	aircraft equipment : tcas other controllera
Resolutory Action	controller : issued new clearance flight crew : took evasive action
Miss Distance	vertical : 800
Supplementary
Problem Areas	ATC Human Performance
Primary Problem	ATC Human Performance

Narrative:

ATC advised us of traffic at 12 O'clock position. We acknowledged that we had the traffic, a B737, in sight. We were still climbing. A few seconds later, we received a TA from our TCASII. We then noticed that the B737 was in a turn to the right, still 1300 ft above us. Our rate of climb was about 3000 FPM. We immediately reduced our rate of climb. We then received an RA from our TCASII and noticed the B737 was heading towards us. The B737 announced that they had a TCASII RA and were climbing. We immediately leveled off. ATC advised the B737 that we had visual contact with them and that there was no conflict. We were not advised by ATC that the B737 was in a turn that would head them towards us or that the B737 was at our assigned altitude.

Original NASA ASRS Text

Title: BAE1000 VECTORED INTO A TCASII RA IN THE DCA CLASS B AIRSPACE.

Narrative: ATC ADVISED US OF TFC AT 12 O'CLOCK POS. WE ACKNOWLEDGED THAT WE HAD THE TFC, A B737, IN SIGHT. WE WERE STILL CLBING. A FEW SECONDS LATER, WE RECEIVED A TA FROM OUR TCASII. WE THEN NOTICED THAT THE B737 WAS IN A TURN TO THE R, STILL 1300 FT ABOVE US. OUR RATE OF CLB WAS ABOUT 3000 FPM. WE IMMEDIATELY REDUCED OUR RATE OF CLB. WE THEN RECEIVED AN RA FROM OUR TCASII AND NOTICED THE B737 WAS HDG TOWARDS US. THE B737 ANNOUNCED THAT THEY HAD A TCASII RA AND WERE CLBING. WE IMMEDIATELY LEVELED OFF. ATC ADVISED THE B737 THAT WE HAD VISUAL CONTACT WITH THEM AND THAT THERE WAS NO CONFLICT. WE WERE NOT ADVISED BY ATC THAT THE B737 WAS IN A TURN THAT WOULD HEAD THEM TOWARDS US OR THAT THE B737 WAS AT OUR ASSIGNED ALT.

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.