Aircraft received a TCASII RA while on radar vectors.

Attributes
ACN	431028
Time
Date	199903
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : 01g.fss navaid : las.vortac
State Reference	NV
Altitude	msl bound lower : 6000 msl bound upper : 8000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : l30.tracon
Operator	common carrier : air carrier
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Route In Use	arrival : on vectors
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tracon : l30.tracon
Operator	common carrier : air carrier
Make Model Name	B757 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	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : commercial pilot : instrument pilot : multi engine
Experience	flight time last 90 days : 200 flight time total : 15000 flight time type : 11000
ASRS Report	431028
Person 2
Affiliation	company : air carrier
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 other flight crewa
Resolutory Action	controller : issued new clearance flight crew : took evasive action
Miss Distance	vertical : 300
Supplementary
Problem Areas	ATC Human Performance
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Deviation

Narrative:

Flight was turned to 190 degrees from 255 degrees on descending vector from 8000 ft to 6000 ft. Got RA at 6900 ft and stopped descent. Controller stopped our descent (after we had taken RA action) at 7000 ft and turned us to heading 130 degrees. Later saw B757 aircraft at same altitude on diverging vector on our left side. Nothing said to us on radio about near miss. Confirmed it later with approach control. A system deviation is being filed by approach control.

Original NASA ASRS Text

Title: ACFT RECEIVED A TCASII RA WHILE ON RADAR VECTORS.

Narrative: FLT WAS TURNED TO 190 DEGS FROM 255 DEGS ON DSNDING VECTOR FROM 8000 FT TO 6000 FT. GOT RA AT 6900 FT AND STOPPED DSCNT. CTLR STOPPED OUR DSCNT (AFTER WE HAD TAKEN RA ACTION) AT 7000 FT AND TURNED US TO HDG 130 DEGS. LATER SAW B757 ACFT AT SAME ALT ON DIVERGING VECTOR ON OUR L SIDE. NOTHING SAID TO US ON RADIO ABOUT NEAR MISS. CONFIRMED IT LATER WITH APCH CTL. A SYS DEV IS BEING FILED BY APCH CTL.

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.