Flight crew of an medium large transport overshot final approach causing a conflict with another air...

Attributes
ACN	318435
Time
Date	199510
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : den
State Reference	CO
Altitude	msl bound lower : 7000 msl bound upper : 8000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : den
Operator	common carrier : air carrier
Make Model Name	B737-200
Operating Under FAR Part	Part 121
Flight Phase	descent other
Flight Plan	IFR
Aircraft 2
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 4500 flight time type : 950
ASRS Report	318435
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : airborne less severe non adherence : clearance other anomaly other other spatial deviation
Independent Detector	other controllera
Resolutory Action	flight crew : returned to intended course or assigned course other
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 6000 vertical : 800
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

After passing northeast of den heading north, the crew queried the controller and mentioned we had the field in sight. We were given a 210 KT speed and soon we were turned west and given a descent. The controller asked if we had traffic for runway 17R. The crew answered negative. Soon after, the controller asked if we did have traffic for runway 17R. The crew answered 'we have many aircraft and could not distinguish the specific aircraft.' the crew was then slowed to 170 KTS and asked if we had the field in sight. The crew answered affirmative, we have the field in sight. We were cleared for visual to runway 17R. We were then immediately told of traffic again for runway 17R, told to slow to 150 KTS and square turn to final for spacing. The crew was now on base leg trying to slow, descend, configure, and find aircraft while looking into the afternoon sun. We saw a couple of potential targets ahead and also left on TCASII trying to pinpoint which aircraft could be our traffic. I saw a potential target that appeared visually between runways 17R and 16 but was unable to confirm if it was really our target. During our turn back to final, we received a TA alert for an aircraft above, behind and to the right. Simultaneously we received a call from approach saying we were in runway 16 arrival area and of potential conflict and to turn toward runway 17R final. I looked back and saw the aircraft descending from the right and behind and said we needed to increase turn rate and descend. Then the TCASII went to RA momentarily but the captain was already correcting. I saw plus 800 ft on the RA. After a moment, the controller gave original traffic 3 mi ahead and switched us to tower. Flight completed normally. Ord based crew not familiar with den procedures (my first time into den). Traffic spaced too tightly, controller not realizing lack of descent needed to slow 60 KTS. Not warned of potential traffic to the west and behind (north). Crew concentration on what seemed to be urgent original traffic.

Original NASA ASRS Text

Title: FLC OF AN MLG OVERSHOT FINAL APCH CAUSING A CONFLICT WITH ANOTHER ACFT ON APCH TO ANOTHER RWY.

Narrative: AFTER PASSING NE OF DEN HDG N, THE CREW QUERIED THE CTLR AND MENTIONED WE HAD THE FIELD IN SIGHT. WE WERE GIVEN A 210 KT SPD AND SOON WE WERE TURNED W AND GIVEN A DSCNT. THE CTLR ASKED IF WE HAD TFC FOR RWY 17R. THE CREW ANSWERED NEGATIVE. SOON AFTER, THE CTLR ASKED IF WE DID HAVE TFC FOR RWY 17R. THE CREW ANSWERED 'WE HAVE MANY ACFT AND COULD NOT DISTINGUISH THE SPECIFIC ACFT.' THE CREW WAS THEN SLOWED TO 170 KTS AND ASKED IF WE HAD THE FIELD IN SIGHT. THE CREW ANSWERED AFFIRMATIVE, WE HAVE THE FIELD IN SIGHT. WE WERE CLRED FOR VISUAL TO RWY 17R. WE WERE THEN IMMEDIATELY TOLD OF TFC AGAIN FOR RWY 17R, TOLD TO SLOW TO 150 KTS AND SQUARE TURN TO FINAL FOR SPACING. THE CREW WAS NOW ON BASE LEG TRYING TO SLOW, DSND, CONFIGURE, AND FIND ACFT WHILE LOOKING INTO THE AFTERNOON SUN. WE SAW A COUPLE OF POTENTIAL TARGETS AHEAD AND ALSO L ON TCASII TRYING TO PINPOINT WHICH ACFT COULD BE OUR TFC. I SAW A POTENTIAL TARGET THAT APPEARED VISUALLY BTWN RWYS 17R AND 16 BUT WAS UNABLE TO CONFIRM IF IT WAS REALLY OUR TARGET. DURING OUR TURN BACK TO FINAL, WE RECEIVED A TA ALERT FOR AN ACFT ABOVE, BEHIND AND TO THE R. SIMULTANEOUSLY WE RECEIVED A CALL FROM APCH SAYING WE WERE IN RWY 16 ARR AREA AND OF POTENTIAL CONFLICT AND TO TURN TOWARD RWY 17R FINAL. I LOOKED BACK AND SAW THE ACFT DSNDING FROM THE R AND BEHIND AND SAID WE NEEDED TO INCREASE TURN RATE AND DSND. THEN THE TCASII WENT TO RA MOMENTARILY BUT THE CAPT WAS ALREADY CORRECTING. I SAW PLUS 800 FT ON THE RA. AFTER A MOMENT, THE CTLR GAVE ORIGINAL TFC 3 MI AHEAD AND SWITCHED US TO TWR. FLT COMPLETED NORMALLY. ORD BASED CREW NOT FAMILIAR WITH DEN PROCS (MY FIRST TIME INTO DEN). TFC SPACED TOO TIGHTLY, CTLR NOT REALIZING LACK OF DSCNT NEEDED TO SLOW 60 KTS. NOT WARNED OF POTENTIAL TFC TO THE W AND BEHIND (N). CREW CONCENTRATION ON WHAT SEEMED TO BE URGENT ORIGINAL TFC.

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.

Flight crew of an medium large transport overshot final approach causing a conflict with another aircraft on approach to another runway.