CL65 experienced TCASII TA during visual approach to den.

Attributes
ACN	597392
Time
Date	200310
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	navaid : den.vor
State Reference	CO
Altitude	msl single value : 11000
Environment
Flight Conditions	VMC
Weather Elements	other
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : d01.tracon
Operator	common carrier : air carrier
Make Model Name	Regional Jet CL65, Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	ils localizer & glide slope : 16l ils other localizer other vortac
Flight Phase	descent : approach
Route In Use	approach : instrument precision arrival : on vectors
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tracon : d01.tracon
Make Model Name	B737 Undifferentiated or Other Model
Navigation In Use	ils localizer & glide slope : 16l
Flight Phase	descent : approach
Route In Use	approach : instrument precision arrival : on vectors
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 7000 flight time type : 1700
ASRS Report	597392
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	conflict : airborne less severe inflight encounter : weather
Independent Detector	aircraft equipment : tcas other flight crewa
Resolutory Action	controller : separated traffic controller : issued new clearance flight crew : took precautionary avoidance action
Miss Distance	horizontal : 0 vertical : 400
Supplementary
Problem Areas	Flight Crew Human Performance ATC Human Performance
Primary Problem	ATC Human Performance

Narrative:

50 mi northwest of den, ATC slowed us to 210 KTS at 14000 ft. They asked several times what our speed was. We said 210 KTS. ATC then slowed us to 170 KTS. They also left us at 11000 ft turning final for runway 16L, and vectored us through the runway 16L localizer, 5-7 mi from the FAF. We were inbound on the runway 16L localizer when a B737 came from the right, and got a TA from that aircraft. At this point, the controller was upset, like it was our fault for his poor job of vectoring other aircraft. He then switched us to runway 17R and we made a normal landing. I think the basic cause of this problem is den approach does too much training and there are not enough experienced controllers working there. ATC left us too high, too close to the airport, and made us fly through the localizer for runway 16L, and never said anything about the B737 he put in front of us. That day there was a tailwind at altitude which made our ground speed faster.

Original NASA ASRS Text

Title: CL65 EXPERIENCED TCASII TA DURING VISUAL APCH TO DEN.

Narrative: 50 MI NW OF DEN, ATC SLOWED US TO 210 KTS AT 14000 FT. THEY ASKED SEVERAL TIMES WHAT OUR SPD WAS. WE SAID 210 KTS. ATC THEN SLOWED US TO 170 KTS. THEY ALSO LEFT US AT 11000 FT TURNING FINAL FOR RWY 16L, AND VECTORED US THROUGH THE RWY 16L LOC, 5-7 MI FROM THE FAF. WE WERE INBOUND ON THE RWY 16L LOC WHEN A B737 CAME FROM THE R, AND GOT A TA FROM THAT ACFT. AT THIS POINT, THE CTLR WAS UPSET, LIKE IT WAS OUR FAULT FOR HIS POOR JOB OF VECTORING OTHER ACFT. HE THEN SWITCHED US TO RWY 17R AND WE MADE A NORMAL LNDG. I THINK THE BASIC CAUSE OF THIS PROB IS DEN APCH DOES TOO MUCH TRAINING AND THERE ARE NOT ENOUGH EXPERIENCED CTLRS WORKING THERE. ATC LEFT US TOO HIGH, TOO CLOSE TO THE ARPT, AND MADE US FLY THROUGH THE LOC FOR RWY 16L, AND NEVER SAID ANYTHING ABOUT THE B737 HE PUT IN FRONT OF US. THAT DAY THERE WAS A TAILWIND AT ALT WHICH MADE OUR GND SPD FASTER.

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.