Near midair collision between GA-small aircraft in cruise and unknown GA-small aircraft climbing.

Attributes
ACN	93011
Time
Date	198808
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : pmd
State Reference	CA
Altitude	msl bound lower : 7500 msl bound upper : 7500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	cruise other
Route In Use	enroute airway : v326
Flight Plan	None
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Experience	flight time last 90 days : 60 flight time total : 135
ASRS Report	93011
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	Other
Miss Distance	horizontal : 30 vertical : 70
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

I was level at 7500' MSL eastbound when I saw approaching aircraft at my 11 O'clock. I did not see the other plane until it was approximately 750' away. He did not either. He was climbing and going from my left to right. I made a 30-45 degree descending turn to my right. He did also. I had previously scanned the airspace in front of me 10-15 seconds before the incident. His line of flight was in the corner of my windshield being blocked by pillar. Callback conversation with reporter revealed the following: callback to get name and address to return identification slip. Conversation revealed other made right hand turn also and was ascending and passed in front of reporter's aircraft. He has heard nothing more from the incident and not positive other aircraft saw him or was just making the turn to go outbnd on the arwy. The reporter's aircraft was inbound to VOR on.

Original NASA ASRS Text

Title: NMAC BETWEEN GA-SMA IN CRUISE AND UNKNOWN GA-SMA CLIMBING.

Narrative: I WAS LEVEL AT 7500' MSL EBND WHEN I SAW APCHING ACFT AT MY 11 O'CLOCK. I DID NOT SEE THE OTHER PLANE UNTIL IT WAS APPROX 750' AWAY. HE DID NOT EITHER. HE WAS CLBING AND GOING FROM MY LEFT TO RIGHT. I MADE A 30-45 DEG DSNDING TURN TO MY RIGHT. HE DID ALSO. I HAD PREVIOUSLY SCANNED THE AIRSPACE IN FRONT OF ME 10-15 SECS BEFORE THE INCIDENT. HIS LINE OF FLT WAS IN THE CORNER OF MY WINDSHIELD BEING BLOCKED BY PILLAR. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING: CALLBACK TO GET NAME AND ADDRESS TO RETURN ID SLIP. CONVERSATION REVEALED OTHER MADE RIGHT HAND TURN ALSO AND WAS ASCENDING AND PASSED IN FRONT OF REPORTER'S ACFT. HE HAS HEARD NOTHING MORE FROM THE INCIDENT AND NOT POSITIVE OTHER ACFT SAW HIM OR WAS JUST MAKING THE TURN TO GO OUTBND ON THE ARWY. THE RPTR'S ACFT WAS INBND TO VOR ON.

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