C182 pilot reports a near midair collision with an open homebuilt aircraft on the base leg. Evasive ...

Attributes
ACN	954612
Time
Date	201106
Local Time Of Day	0601-1200
Place
Locale Reference	HBZ.Airport
State Reference	AR
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Skylane 182/RG Turbo Skylane/RG
Operating Under FAR Part	Part 91
Flight Phase	Landing
Route In Use	Visual Approach
Flight Plan	VFR
Aircraft 2
Make Model Name	Experimental
Operating Under FAR Part	Part 91
Flight Phase	Landing
Person 1
Function	Pilot Flying Single Pilot
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 50 Flight Crew Total 27000 Flight Crew Type 700
Events
Anomaly	Conflict NMAC
Miss Distance	Horizontal 200 Vertical 0

Narrative:

I canceled my IFR flight plan and proceeded to the airport VFR. I called my position and intentions to enter downwind for runway 23 for landing; at 15; 10 and 5 miles as well as entering downwind and turning base leg. On base leg turning to final an airplane; apparently a tandem open home-built airplane passed by me 90 degrees off the final approach heading apparently flying a right base leg or passing through the base to final area in southerly direction. I tightened up my turn to avoid a collision and passed approximately 200 ft and level from the aircraft. I have a pcas unit in my airplane that never showed the presence of any airplane equipped with a transponder and neither I nor the airport attendant who had a portable radio heard anybody else call in on unicom. I landed and watched as the airplane came back and did a touch and go landing on runway 23 with the two occupants waving at me as they went by. This was witnessed by the airport attendant who was standing outside. This was also witnessed by the right seat passenger in my airplane.

Original NASA ASRS Text

Title: C182 pilot reports a NMAC with an open homebuilt aircraft on the base leg. Evasive action is taken by the reporter. The homebuilt is apparently without a transponder or radios.

Narrative: I canceled my IFR flight plan and proceeded to the airport VFR. I called my position and intentions to enter downwind for Runway 23 for landing; at 15; 10 and 5 miles as well as entering downwind and turning base leg. On base leg turning to final an airplane; apparently a tandem open home-built airplane passed by me 90 degrees off the final approach heading apparently flying a right base leg or passing through the base to final area in southerly direction. I tightened up my turn to avoid a collision and passed approximately 200 FT and level from the aircraft. I have a PCAS unit in my airplane that never showed the presence of any airplane equipped with a transponder and neither I nor the airport attendant who had a portable radio heard anybody else call in on UNICOM. I landed and watched as the airplane came back and did a touch and go landing on Runway 23 with the two occupants waving at me as they went by. This was witnessed by the airport attendant who was standing outside. This was also witnessed by the right seat passenger in my airplane.

Data retrieved from NASA's ASRS site as of April 2012 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.

C182 pilot reports a near midair collision with an open homebuilt aircraft on the base leg. Evasive action is taken by the reporter. The homebuilt is apparently without a transponder or radios.