H25B captain describes close call traffic pattern event with cessna while landing at pwk.

Attributes
ACN	650976
Time
Date	200503
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : pwk.airport
State Reference	IL
Altitude	agl single value : 500
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Controlling Facilities	tower : pwk.tower
Operator	general aviation : corporate
Make Model Name	HS 125 Series
Operating Under FAR Part	Part 91
Flight Phase	descent : approach
Route In Use	approach : visual
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tower : pwk.tower
Operator	general aviation : instructional
Make Model Name	Skyhawk 172/Cutlass 172
Flight Phase	descent : approach
Route In Use	approach : visual
Person 1
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 5800 flight time type : 600
ASRS Report	650976
Person 2
Affiliation	company : corporate
Function	flight crew : first officer
Events
Anomaly	conflict : nmac
Independent Detector	aircraft equipment : tcas other flight crewa
Resolutory Action	controller : issued new clearance flight crew : took evasive action flight crew : executed go around
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 100 vertical : 0
Supplementary
Problem Areas	Flight Crew Human Performance ATC Human Performance Airport
Primary Problem	ATC Human Performance

Narrative:

On approach into pwk; we were cleared for the visual to runway 16. Upon checking in with tower; we were asked to cancel our IFR and circle for runway 34. There was a little confusion as to where other traffic was at. We had been cleared for the visual but not to land; and cessna had been cleared to land. We were in right traffic and the cessna was in left traffic. We started our base as to keep us out of chicago's airspace on the base leg. Tower asked us to square to turn and slow. We were already at approach speed. We s-turned over final and turned back towards the airport. At this point; the aircraft was in no position to land. We were about to begin a go around when tower asked the cessna ahead to go around and make left traffic. As the cessna went around; he made an immediate left turn in front of us. A TA was issued from TCASII; but no RA due to proximity to ground. We were approximately 400-500 ft AGL. Tower seemed to lose situational awareness as they several times asked us to squawk VFR which we already were; and on departure of missed we were asked to make right traffic to runway 34 where on TCASII another aircraft was at safe altitude and 3-4 mi. We said 'unable right traffic' and were given left traffic. After landing and talking with tower; we were advised cessna was a student pilot practicing lndgs and were told this is a problem with tight airspace with VFR traffic flow with numerous jets and small airplanes.

Original NASA ASRS Text

Title: H25B CAPT DESCRIBES CLOSE CALL TFC PATTERN EVENT WITH CESSNA WHILE LNDG AT PWK.

Narrative: ON APCH INTO PWK; WE WERE CLRED FOR THE VISUAL TO RWY 16. UPON CHKING IN WITH TWR; WE WERE ASKED TO CANCEL OUR IFR AND CIRCLE FOR RWY 34. THERE WAS A LITTLE CONFUSION AS TO WHERE OTHER TFC WAS AT. WE HAD BEEN CLRED FOR THE VISUAL BUT NOT TO LAND; AND CESSNA HAD BEEN CLRED TO LAND. WE WERE IN R TFC AND THE CESSNA WAS IN L TFC. WE STARTED OUR BASE AS TO KEEP US OUT OF CHICAGO'S AIRSPACE ON THE BASE LEG. TWR ASKED US TO SQUARE TO TURN AND SLOW. WE WERE ALREADY AT APCH SPD. WE S-TURNED OVER FINAL AND TURNED BACK TOWARDS THE ARPT. AT THIS POINT; THE ACFT WAS IN NO POS TO LAND. WE WERE ABOUT TO BEGIN A GAR WHEN TWR ASKED THE CESSNA AHEAD TO GO AROUND AND MAKE L TFC. AS THE CESSNA WENT AROUND; HE MADE AN IMMEDIATE L TURN IN FRONT OF US. A TA WAS ISSUED FROM TCASII; BUT NO RA DUE TO PROX TO GND. WE WERE APPROX 400-500 FT AGL. TWR SEEMED TO LOSE SITUATIONAL AWARENESS AS THEY SEVERAL TIMES ASKED US TO SQUAWK VFR WHICH WE ALREADY WERE; AND ON DEP OF MISSED WE WERE ASKED TO MAKE R TFC TO RWY 34 WHERE ON TCASII ANOTHER ACFT WAS AT SAFE ALT AND 3-4 MI. WE SAID 'UNABLE R TFC' AND WERE GIVEN L TFC. AFTER LNDG AND TALKING WITH TWR; WE WERE ADVISED CESSNA WAS A STUDENT PLT PRACTICING LNDGS AND WERE TOLD THIS IS A PROB WITH TIGHT AIRSPACE WITH VFR TFC FLOW WITH NUMEROUS JETS AND SMALL AIRPLANES.

Data retrieved from NASA's ASRS site as of January 2009 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.