Near midair collision. Questionable pattern entry.

Attributes
ACN	312304
Time
Date	199507
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : ccr
State Reference	CA
Altitude	msl bound lower : 1500 msl bound upper : 1500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : ccr
Operator	general aviation : personal
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	cruise other other
Flight Plan	None
Aircraft 2
Make Model Name	Cessna Single Piston Undifferentiated or Other Model
Operating Under FAR Part	Part 91
Flight Phase	other
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : cfi
Experience	flight time last 90 days : 5 flight time total : 330 flight time type : 13
ASRS Report	312304
Person 2
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Events
Anomaly	conflict : nmac
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 0 vertical : 500
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

At 6 mi southeast of concord airport, called control tower for landing instructions. The tower told me cleared to land runway 32L. On those instructions, I knew I would have to fly over airport, so I flew at 500 ft above traffic to clear over airport. As I flew over airport, another pilot in a cessna said we had a near miss, as I crossed over the top of him, I saw him off my left wing about 500 ft below me, he said he had done an evasive maneuver to avoid me. When I saw him, he was still flying a normal flight path in the traffic pattern. From that point on, this pilot continued on the radio about this until the controller told him this was not the forum for this discussion. As far as human factor, I was tired.

Original NASA ASRS Text

Title: NMAC. QUESTIONABLE PATTERN ENTRY.

Narrative: AT 6 MI SE OF CONCORD ARPT, CALLED CTL TWR FOR LNDG INSTRUCTIONS. THE TWR TOLD ME CLRED TO LAND RWY 32L. ON THOSE INSTRUCTIONS, I KNEW I WOULD HAVE TO FLY OVER ARPT, SO I FLEW AT 500 FT ABOVE TFC TO CLR OVER ARPT. AS I FLEW OVER ARPT, ANOTHER PLT IN A CESSNA SAID WE HAD A NEAR MISS, AS I CROSSED OVER THE TOP OF HIM, I SAW HIM OFF MY L WING ABOUT 500 FT BELOW ME, HE SAID HE HAD DONE AN EVASIVE MANEUVER TO AVOID ME. WHEN I SAW HIM, HE WAS STILL FLYING A NORMAL FLT PATH IN THE TFC PATTERN. FROM THAT POINT ON, THIS PLT CONTINUED ON THE RADIO ABOUT THIS UNTIL THE CTLR TOLD HIM THIS WAS NOT THE FORUM FOR THIS DISCUSSION. AS FAR AS HUMAN FACTOR, I WAS TIRED.

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.