FA50 experienced RA on approach into apa.

Attributes
ACN	578780
Time
Date	200304
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	navaid : fqf.vortac
State Reference	CO
Altitude	msl single value : 10000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdv.artcc
Operator	general aviation : corporate
Make Model Name	Falcon 50
Operating Under FAR Part	Part 91
Navigation In Use	other other vortac
Flight Phase	descent : intermediate altitude
Route In Use	arrival star : sayge 4
Flight Plan	IFR
Aircraft 2
Controlling Facilities	artcc : zdv.artcc
Operator	common carrier : air carrier
Make Model Name	Boeing Company Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 120 flight time total : 11000 flight time type : 3000
ASRS Report	578780
Person 2
Affiliation	company : corporate
Function	flight crew : first officer
Events
Anomaly	conflict : airborne less severe non adherence : required legal separation
Independent Detector	aircraft equipment : tcas other flight crewa
Resolutory Action	controller : issued new clearance flight crew : took evasive action
Consequence	faa : investigated
Miss Distance	horizontal : 6000 vertical : 1000
Supplementary
Problem Areas	Flight Crew Human Performance ATC Human Performance
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

We were on the sayge 4 arrival into apa in denver, co. We were on a radar vector from ZDV after sayge intersection of 220 degrees. We were instructed to turn to 180 degrees, and descend from 11000 ft to 9000 ft. Halfway through the turn, we received a TCASII 'TA,' immediately followed by an 'RA' to climb. We started the climb, and rolled out of the turn when we saw the other aircraft. ZDV told us to, 'descend immediately,' but we followed the TCASII instructions, and the copilot replied, 'negative, TCASII climb.' after the incident, ZDV reclred us to 9000 ft, and a heading of 180 degrees. We were on ZDV frequency, 128.25. During the incident, there was a change in controller voices, from a female to a male voice.

Original NASA ASRS Text

Title: FA50 EXPERIENCED RA ON APCH INTO APA.

Narrative: WE WERE ON THE SAYGE 4 ARR INTO APA IN DENVER, CO. WE WERE ON A RADAR VECTOR FROM ZDV AFTER SAYGE INTXN OF 220 DEGS. WE WERE INSTRUCTED TO TURN TO 180 DEGS, AND DSND FROM 11000 FT TO 9000 FT. HALFWAY THROUGH THE TURN, WE RECEIVED A TCASII 'TA,' IMMEDIATELY FOLLOWED BY AN 'RA' TO CLB. WE STARTED THE CLB, AND ROLLED OUT OF THE TURN WHEN WE SAW THE OTHER ACFT. ZDV TOLD US TO, 'DSND IMMEDIATELY,' BUT WE FOLLOWED THE TCASII INSTRUCTIONS, AND THE COPLT REPLIED, 'NEGATIVE, TCASII CLB.' AFTER THE INCIDENT, ZDV RECLRED US TO 9000 FT, AND A HEADING OF 180 DEGS. WE WERE ON ZDV FREQ, 128.25. DURING THE INCIDENT, THERE WAS A CHANGE IN CTLR VOICES, FROM A FEMALE TO A MALE VOICE.

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.