Narrative:

I am a retired major airline captain and a retired aviation safety inspector (operations). In addition; I have flown and logged over 12000 flight hours as a pilot; flight instructor and pilot examiner in light GA aircraft. I served as PIC of a CE680 during a flight from ZZZ to boulder city airport (61B). Las vegas approach control had cleared us for a visual approach to 61B. My copilot announced on the unicom frequency that we were on a 5 mi final for runway 27L. He made another announcement that we were on a 3 mi final for runway 27L. The pilot of C180 transmitted that he was going to turn base in front of us and that we were required to enter the pattern. C180 turned and crossed in front of us when we were about 300 ft above the ground about 1 mi from the approach end of runway 27L. We were below the altitude of C180 when he began his turn and were below him when he passed in front of us on a northerly heading. We had expected the pilot of C180 to continue on his downwind leg or the traffic pattern. We would not have expected a reasonable and prudent pilot to intentionally turn in front of a jet aircraft on short final approach. We would have been happy to execute a go around to appease the pilot of C180. However; the pilot of C180 operated his aircraft in a position that prevented us from making a normal go around. Executing a go around with C180 ahead and above us would have created a collision hazard. We continued our descent and landed on runway 27L. Customer service representative came to our aircraft and told us that he saw the cessna turn in front of us.

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Original NASA ASRS Text

Title: THE CAPT OF A CE680 HAD CONFLICT WITH A C180 ON APPROACH TO 61B.

Narrative: I AM A RETIRED MAJOR AIRLINE CAPT AND A RETIRED AVIATION SAFETY INSPECTOR (OPS). IN ADDITION; I HAVE FLOWN AND LOGGED OVER 12000 FLT HRS AS A PLT; FLT INSTRUCTOR AND PLT EXAMINER IN LIGHT GA ACFT. I SERVED AS PIC OF A CE680 DURING A FLT FROM ZZZ TO BOULDER CITY ARPT (61B). LAS VEGAS APCH CTL HAD CLRED US FOR A VISUAL APCH TO 61B. MY COPLT ANNOUNCED ON THE UNICOM FREQ THAT WE WERE ON A 5 MI FINAL FOR RWY 27L. HE MADE ANOTHER ANNOUNCEMENT THAT WE WERE ON A 3 MI FINAL FOR RWY 27L. THE PLT OF C180 XMITTED THAT HE WAS GOING TO TURN BASE IN FRONT OF US AND THAT WE WERE REQUIRED TO ENTER THE PATTERN. C180 TURNED AND CROSSED IN FRONT OF US WHEN WE WERE ABOUT 300 FT ABOVE THE GND ABOUT 1 MI FROM THE APCH END OF RWY 27L. WE WERE BELOW THE ALT OF C180 WHEN HE BEGAN HIS TURN AND WERE BELOW HIM WHEN HE PASSED IN FRONT OF US ON A NORTHERLY HDG. WE HAD EXPECTED THE PLT OF C180 TO CONTINUE ON HIS DOWNWIND LEG OR THE TFC PATTERN. WE WOULD NOT HAVE EXPECTED A REASONABLE AND PRUDENT PLT TO INTENTIONALLY TURN IN FRONT OF A JET ACFT ON SHORT FINAL APCH. WE WOULD HAVE BEEN HAPPY TO EXECUTE A GAR TO APPEASE THE PLT OF C180. HOWEVER; THE PLT OF C180 OPERATED HIS ACFT IN A POS THAT PREVENTED US FROM MAKING A NORMAL GAR. EXECUTING A GAR WITH C180 AHEAD AND ABOVE US WOULD HAVE CREATED A COLLISION HAZARD. WE CONTINUED OUR DSCNT AND LANDED ON RWY 27L. CUSTOMER SVC REPRESENTATIVE CAME TO OUR ACFT AND TOLD US THAT HE SAW THE CESSNA TURN IN FRONT OF US.

Data retrieved from NASA's ASRS site as of May 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.