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Near midair collision averted when approach controller at L30 advises climbing B757 of pop-up traffic, the reporter's C310, at 12 O'clock position at 10500 ft, 33 NM south of las, nv.
| Attributes | |
| ACN | 559389 |
| Time | |
| Date | 200209 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : las.airport |
| State Reference | NV |
| Altitude | msl single value : 10500 |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Controlling Facilities | tracon : l30.tracon |
| Operator | general aviation : personal |
| Make Model Name | Cessna 310/T310C |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise : level |
| Flight Plan | None |
| Aircraft 2 | |
| Controlling Facilities | tracon : l30.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | Boeing Company Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : vacating altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | other |
| Function | flight crew : single pilot oversight : pic |
| Qualification | pilot : atp pilot : cfi |
| Experience | flight time last 90 days : 90 flight time total : 24000 flight time type : 300 |
| ASRS Report | 559389 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | conflict : airborne less severe other anomaly other |
| Independent Detector | aircraft equipment : tcas other controllera |
| Resolutory Action | controller : issued advisory flight crew : took precautionary avoidance action |
| Miss Distance | horizontal : 300 vertical : 1000 |
| Supplementary | |
| Problem Areas | Airspace Structure ATC Human Performance Flight Crew Human Performance Environmental Factor ATC Facility |
| Primary Problem | Airspace Structure |
Narrative:
Flight from casa grande, az, to las, nv, landing at hnd, flight following with ZLA. About 36 mi south of las VOR, ZLA advised that radar service and flight following were canceled, squawk 1200 and call las approach control. I called las. They advised they were very busy and would try to get back to me. Very shortly thereafter, they excitedly called an air carrier flight to tell him he had VFR traffic directly ahead of him that just popped up on their radar. He told them that he had a TCASII warning and had stopped his climb. Without the TCASII warning, I think he would have hit us. Shortly after that, we were cleared to enter las class B airspace and were given a transponder code. Descent and landing at henderson were routine. I really don't know what to say about a possible remedy. I was outside class B airspace at the proper altitude. Air carrier was following his assigned clearance and las approach said we had just popped up on their radar. If ZLA had given us a positive handoff to las approach, I don't think any of this would have happened. It seems to be a common practice that when ATC gets busy and they are needed most, they simply say good-bye.
Original NASA ASRS Text
Title: NMAC AVERTED WHEN APCH CTLR AT L30 ADVISES CLBING B757 OF POP-UP TFC, THE RPTR'S C310, AT 12 O'CLOCK POS AT 10500 FT, 33 NM S OF LAS, NV.
Narrative: FLT FROM CASA GRANDE, AZ, TO LAS, NV, LNDG AT HND, FLT FOLLOWING WITH ZLA. ABOUT 36 MI S OF LAS VOR, ZLA ADVISED THAT RADAR SVC AND FLT FOLLOWING WERE CANCELED, SQUAWK 1200 AND CALL LAS APCH CTL. I CALLED LAS. THEY ADVISED THEY WERE VERY BUSY AND WOULD TRY TO GET BACK TO ME. VERY SHORTLY THEREAFTER, THEY EXCITEDLY CALLED AN ACR FLT TO TELL HIM HE HAD VFR TFC DIRECTLY AHEAD OF HIM THAT JUST POPPED UP ON THEIR RADAR. HE TOLD THEM THAT HE HAD A TCASII WARNING AND HAD STOPPED HIS CLB. WITHOUT THE TCASII WARNING, I THINK HE WOULD HAVE HIT US. SHORTLY AFTER THAT, WE WERE CLRED TO ENTER LAS CLASS B AIRSPACE AND WERE GIVEN A XPONDER CODE. DSCNT AND LNDG AT HENDERSON WERE ROUTINE. I REALLY DON'T KNOW WHAT TO SAY ABOUT A POSSIBLE REMEDY. I WAS OUTSIDE CLASS B AIRSPACE AT THE PROPER ALT. ACR WAS FOLLOWING HIS ASSIGNED CLRNC AND LAS APCH SAID WE HAD JUST POPPED UP ON THEIR RADAR. IF ZLA HAD GIVEN US A POSITIVE HDOF TO LAS APCH, I DON'T THINK ANY OF THIS WOULD HAVE HAPPENED. IT SEEMS TO BE A COMMON PRACTICE THAT WHEN ATC GETS BUSY AND THEY ARE NEEDED MOST, THEY SIMPLY SAY GOOD-BYE.
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.