Cpr pilot objects to tower allowing traffic to cross his final approach path without an advisory.

Attributes
ACN	451889
Time
Date	199910
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : apa.airport
State Reference	CO
Altitude	agl single value : 1000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : apa.tower
Operator	general aviation : corporate
Make Model Name	Challenger Jet Undifferentiated or Other Model
Operating Under FAR Part	Part 91
Navigation In Use	other
Flight Phase	descent : approach
Route In Use	approach : straight in
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tower : apa.tower
Operator	general aviation : personal
Make Model Name	Cessna Single Piston Undifferentiated or Other Model
Operating Under FAR Part	Part 91
Flight Phase	descent : approach
Route In Use	approach : traffic pattern
Person 1
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : cfi pilot : commercial pilot : multi engine
Experience	flight time last 90 days : 90 flight time total : 5400 flight time type : 450
ASRS Report	451889
Person 2
Affiliation	company : corporate
Function	flight crew : first officer
Qualification	pilot : commercial pilot : multi engine pilot : instrument
Events
Anomaly	conflict : airborne less severe
Independent Detector	aircraft equipment : tcas other flight crewa
Resolutory Action	none taken : anomaly accepted
Miss Distance	horizontal : 3000 vertical : 300
Supplementary
Problem Areas	Flight Crew Human Performance ATC Human Performance
Primary Problem	ATC Human Performance

Narrative:

We had been vectored onto a long (5 NM) final for runway 35R. Tower told us to continue visual approach, and be aware that the runway 35L pattern was busy with many planes turning left base to final. Less than 2 mi from the threshold, our TCASII showed a low target off our right side, crossing our flight path. Due to our low altitude, we got a yellow TA, not an RA. We both assumed it was a traffic copter, but continued looking. Tower still hadn't mentioned this traffic. When we spotted this aircraft, it was a yellow high wing (cessna?) turning right base to runway 35L, across our path. We passed close to this traffic, and a collision was never an issue. However, if tower is going to let traffic cross the final, please advise the aircraft on final. Our proximity to the other aircraft during this phase of flight was unacceptable.

Original NASA ASRS Text

Title: CPR PLT OBJECTS TO TWR ALLOWING TFC TO CROSS HIS FINAL APCH PATH WITHOUT AN ADVISORY.

Narrative: WE HAD BEEN VECTORED ONTO A LONG (5 NM) FINAL FOR RWY 35R. TWR TOLD US TO CONTINUE VISUAL APCH, AND BE AWARE THAT THE RWY 35L PATTERN WAS BUSY WITH MANY PLANES TURNING L BASE TO FINAL. LESS THAN 2 MI FROM THE THRESHOLD, OUR TCASII SHOWED A LOW TARGET OFF OUR R SIDE, XING OUR FLT PATH. DUE TO OUR LOW ALT, WE GOT A YELLOW TA, NOT AN RA. WE BOTH ASSUMED IT WAS A TFC COPTER, BUT CONTINUED LOOKING. TWR STILL HADN'T MENTIONED THIS TFC. WHEN WE SPOTTED THIS ACFT, IT WAS A YELLOW HIGH WING (CESSNA?) TURNING R BASE TO RWY 35L, ACROSS OUR PATH. WE PASSED CLOSE TO THIS TFC, AND A COLLISION WAS NEVER AN ISSUE. HOWEVER, IF TWR IS GOING TO LET TFC CROSS THE FINAL, PLEASE ADVISE THE ACFT ON FINAL. OUR PROX TO THE OTHER ACFT DURING THIS PHASE OF FLT WAS UNACCEPTABLE.

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.