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L30 controller described conflict involving fast climbing aircraft that activated ATC conflict alert with level aircraft above; no operational error recorded.
| Attributes | |
| ACN | 695067 |
| Time | |
| Date | 200604 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : las.vortac |
| State Reference | NV |
| Altitude | msl single value : 11000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : l30.tracon |
| Operator | general aviation : personal |
| Make Model Name | PA-31 Navajo Chieftan/Mojave/Navajo T1020 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : l30.tracon |
| Operator | general aviation : corporate |
| Make Model Name | Challenger Jet Undifferentiated or Other Model |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : departure instruction : instructor |
| Qualification | controller : radar |
| Experience | controller radar : 19 controller time certified in position1 : 5 |
| ASRS Report | 695067 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : departure instruction : trainee |
| Events | |
| Anomaly | conflict : airborne less severe |
| Independent Detector | atc equipment : conflict alert other controllera |
| Resolutory Action | controller : issued new clearance controller : issued alert flight crew : took evasive action |
| Miss Distance | vertical : 8 |
| Supplementary | |
| Problem Areas | ATC Human Performance Flight Crew Human Performance |
| Primary Problem | ATC Human Performance |
Narrative:
I was training on med departure; confign #6 east departures shared use airspace; but is owned by med departure. I was in control of the PA31 established outbound las 075 degree radial to crowe intersection. Dag departure was in control of CL60 on a boach 2 departure hector transition. Was monitoring dagge high speed departure. Aircraft observed the challenger approaching 10000 ft (1000 ft below my aircraft on an overtake). About 9700 ft; I heard the dag departure controller issue the CL60 maintain 10000 ft turn right. At this time my trainee turned the PA31. We were in control of left to 040 degrees to achieve as much divergence as we could not be sure of the distance but with our turn and the CL60's turn they were never going to hit. It appears that dag (daggett departure) achieved the proper separation (not sure). TCAS did not activate on the PA31. Supervisor was notified.
Original NASA ASRS Text
Title: L30 CTLR DESCRIBED CONFLICT INVOLVING FAST CLBING ACFT THAT ACTIVATED ATC CONFLICT ALERT WITH LEVEL ACFT ABOVE; NO OPERROR RECORDED.
Narrative: I WAS TRAINING ON MED DEP; CONFIGN #6 E DEPS SHARED USE AIRSPACE; BUT IS OWNED BY MED DEP. I WAS IN CTL OF THE PA31 ESTABLISHED OUTBOUND LAS 075 DEG RADIAL TO CROWE INTXN. DAG DEP WAS IN CTL OF CL60 ON A BOACH 2 DEP HECTOR TRANSITION. WAS MONITORING DAGGE HIGH SPD DEP. ACFT OBSERVED THE CHALLENGER APCHING 10000 FT (1000 FT BELOW MY ACFT ON AN OVERTAKE). ABOUT 9700 FT; I HEARD THE DAG DEP CTLR ISSUE THE CL60 MAINTAIN 10000 FT TURN R. AT THIS TIME MY TRAINEE TURNED THE PA31. WE WERE IN CTL OF L TO 040 DEGS TO ACHIEVE AS MUCH DIVERGENCE AS WE COULD NOT BE SURE OF THE DISTANCE BUT WITH OUR TURN AND THE CL60'S TURN THEY WERE NEVER GOING TO HIT. IT APPEARS THAT DAG (DAGGETT DEP) ACHIEVED THE PROPER SEPARATION (NOT SURE). TCAS DID NOT ACTIVATE ON THE PA31. SUPVR WAS NOTIFIED.
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.