An near midair collision occurs between a C182 and a BE35 as they fly in den airspace.

Attributes
ACN	356121
Time
Date	199612
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : fqf airport : den
State Reference	CO
Altitude	msl bound lower : 8600 msl bound upper : 8600
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Skylane 182/RG Turbo Skylane/RG
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Flight Plan	None
Aircraft 2
Operator	general aviation : personal
Make Model Name	Bonanza 35
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Flight Plan	None
Person 1
Affiliation	Other
Function	instruction : instructor
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 30 flight time total : 22330 flight time type : 50
ASRS Report	356121
Person 2
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Events
Anomaly	conflict : nmac
Independent Detector	other flight crewa
Resolutory Action	none taken : insufficient time
Consequence	Other
Miss Distance	horizontal : 500 vertical : 500
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

I was conducting a biennial flight review in a C182. We were straight and level at 110 KIAS, heading 270 degrees. A beech 35 passed overhead and in front of us with less than 500 ft of clearance. The bonanza was heading about 290 degrees in a gradual descent, with an estimated 40-50 KT overtake. This appeared to be the classic high wing versus low wing blind spot problem. We were in the bonanza's blind spot, slightly low and to the right. He was in our blind spot coming from behind and above. This event happened in a high density traffic area underlying class B airspace. Both aircraft should probably have been communicating with approach control even though it wasn't required. I think most GA pilots still consider flight following from ATC a hassle. Sometimes it is, sometimes it isn't, but I think I will be requesting flight following more often.

Original NASA ASRS Text

Title: AN NMAC OCCURS BTWN A C182 AND A BE35 AS THEY FLY IN DEN AIRSPACE.

Narrative: I WAS CONDUCTING A BIENNIAL FLT REVIEW IN A C182. WE WERE STRAIGHT AND LEVEL AT 110 KIAS, HDG 270 DEGS. A BEECH 35 PASSED OVERHEAD AND IN FRONT OF US WITH LESS THAN 500 FT OF CLRNC. THE BONANZA WAS HDG ABOUT 290 DEGS IN A GRADUAL DSCNT, WITH AN ESTIMATED 40-50 KT OVERTAKE. THIS APPEARED TO BE THE CLASSIC HIGH WING VERSUS LOW WING BLIND SPOT PROB. WE WERE IN THE BONANZA'S BLIND SPOT, SLIGHTLY LOW AND TO THE R. HE WAS IN OUR BLIND SPOT COMING FROM BEHIND AND ABOVE. THIS EVENT HAPPENED IN A HIGH DENSITY TFC AREA UNDERLYING CLASS B AIRSPACE. BOTH ACFT SHOULD PROBABLY HAVE BEEN COMMUNICATING WITH APCH CTL EVEN THOUGH IT WASN'T REQUIRED. I THINK MOST GA PLTS STILL CONSIDER FLT FOLLOWING FROM ATC A HASSLE. SOMETIMES IT IS, SOMETIMES IT ISN'T, BUT I THINK I WILL BE REQUESTING FLT FOLLOWING MORE OFTEN.

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.