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B767 crew on extended right base at 13000 ft for runway 35L at den airport encountered a learjet opposite direction climbing eastbound resulting in a conflict.
| Attributes | |
| ACN | 570758 |
| Time | |
| Date | 200301 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : den.airport |
| State Reference | CO |
| Altitude | msl single value : 13000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : d01.tracon tower : cos.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B767 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Route In Use | approach : traffic pattern arrival : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : d01.tracon |
| Make Model Name | Gates Learjet Corp Undifferentiated or Other Model |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure : on vectors |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 13000 flight time type : 6000 |
| ASRS Report | 570758 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : flight engineer pilot : instrument pilot : multi engine pilot : private pilot : atp |
| Experience | flight time last 90 days : 120 flight time total : 10000 flight time type : 1800 |
| ASRS Report | 570454 |
| Events | |
| Anomaly | conflict : airborne critical non adherence : published procedure non adherence : required legal separation |
| Independent Detector | atc equipment other atc equipment : radar/ mode c aircraft equipment : tcas other controllera other controllerb other flight crewa other flight crewb other other : 3 |
| Resolutory Action | controller : issued advisory flight crew : took evasive action none taken : detected after the fact |
| Miss Distance | horizontal : 10000 vertical : 400 |
| Supplementary | |
| Problem Areas | ATC Human Performance Flight Crew Human Performance |
| Primary Problem | Ambiguous |
Narrative:
Level at 13000 ft on west heading set up on right base for runway 35L denver, first received TA soon turned into a RA, started descent to clear traffic that turned out to be a lear rapidly climbing eastbound. We were given a right approximately 30 degree turn that we did not do, as that would have pointed us directly at the traffic. At this time, advised ATC we were following an RA, lear passed approximately 400 ft below and approximately 2 mi north. Queried controller, and he said the lear was being vectored by another controller. He also said the rapid climb rate of the lear most likely activated our TCASII, and he had seen RA's before in similar sits.
Original NASA ASRS Text
Title: B767 CREW ON EXTENDED R BASE AT 13000 FT FOR RWY 35L AT DEN ARPT ENCOUNTERED A LEARJET OPPOSITE DIRECTION CLBING EBOUND RESULTING IN A CONFLICT.
Narrative: LEVEL AT 13000 FT ON W HDG SET UP ON R BASE FOR RWY 35L DENVER, FIRST RECEIVED TA SOON TURNED INTO A RA, STARTED DSCNT TO CLR TFC THAT TURNED OUT TO BE A LEAR RAPIDLY CLBING EBOUND. WE WERE GIVEN A R APPROX 30 DEG TURN THAT WE DID NOT DO, AS THAT WOULD HAVE POINTED US DIRECTLY AT THE TFC. AT THIS TIME, ADVISED ATC WE WERE FOLLOWING AN RA, LEAR PASSED APPROX 400 FT BELOW AND APPROX 2 MI N. QUERIED CTLR, AND HE SAID THE LEAR WAS BEING VECTORED BY ANOTHER CTLR. HE ALSO SAID THE RAPID CLB RATE OF THE LEAR MOST LIKELY ACTIVATED OUR TCASII, AND HE HAD SEEN RA'S BEFORE IN SIMILAR SITS.
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.