Near midair collision between a small aircraft sel on crosswind leg after takeoff and a small aircraft sel transiting through the airport area.

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Attributes
ACN	316619
Time
Date	199509
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : pao
State Reference	CA
Altitude	msl bound lower : 1500 msl bound upper : 1500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : pao
Operator	general aviation : personal
Make Model Name	Cessna 152
Operating Under FAR Part	Part 91
Flight Phase	climbout : intermediate altitude other
Flight Plan	None
Aircraft 2
Make Model Name	Cheetah, Tiger, Traveler
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
ASRS Report	316619
Person 2
Affiliation	Other
Function	flight crew : single pilot
Qualification	controller : non radar
Events
Anomaly	aircraft equipment problem : less severe non adherence : published procedure non adherence : far other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 150 vertical : 0
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

I was on crosswind leg for standard 'dumbarton left' departure. Other aircraft was transitioning pao class 'D' toward sql. There was no warning from pao tower to either aircraft of the existence of the other. I also found out on returning to pao that I had a non-functioning transponder. I made evasive action at time of incident.

Original NASA ASRS Text

Title: NMAC BTWN A SMA SEL ON XWIND LEG AFTER TKOF AND A SMA SEL TRANSITING THROUGH THE ARPT AREA.

Narrative: I WAS ON XWIND LEG FOR STANDARD 'DUMBARTON L' DEP. OTHER ACFT WAS TRANSITIONING PAO CLASS 'D' TOWARD SQL. THERE WAS NO WARNING FROM PAO TWR TO EITHER ACFT OF THE EXISTENCE OF THE OTHER. I ALSO FOUND OUT ON RETURNING TO PAO THAT I HAD A NON-FUNCTIONING XPONDER. I MADE EVASIVE ACTION AT TIME OF INCIDENT.

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.