J3 pilot has near midair collision aircraft performing acrobatic maneuver.

Attributes
ACN	584497
Time
Date	200306
Day	Sun
Local Time Of Day	1201 To 1800
Place
State Reference	GA
Altitude	msl bound lower : 1600 msl bound upper : 1700
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	J3 Cub
Operating Under FAR Part	Part 91
Flight Phase	cruise : level
Aircraft 2
Controlling Facilities	tower : pdk.tower
Operator	general aviation : personal
Make Model Name	Texan T6 Harvard
Operating Under FAR Part	Part 91
Flight Phase	climbout : initial climbout : intermediate altitude
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : private pilot : instrument
Experience	flight time last 90 days : 30 flight time total : 1800 flight time type : 450
ASRS Report	584497
Person 2
Affiliation	other
Function	flight crew : single pilot
Events
Anomaly	conflict : nmac conflict : airborne critical non adherence : required legal separation non adherence : far
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Miss Distance	horizontal : 400 vertical : 0
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I was northbound in J3 cub about 600-700 ft AGL and 1/2 mi south of closed stone mountain airport (formerly ooa). Suddenly snj aircraft appeared 400 ft or so ahead in a near vertical climb. Snj had apparently buzzed the closed airstrip in opposite direction and made pull up to about 1000 ft AGL. I don't think he ever saw me. Snj was yellow and I had a close view of the belly. I observed the snj depart toward pdk airport. I monitored pdk tower and heard him report east of pdk. Contributing factor was low level aerobatic maneuver by snj without clearing the area. He was much lower than me and approaching head on before steep pull up. As soon as he appeared in my windshield, I banked hard right and descended.

Original NASA ASRS Text

Title: J3 PLT HAS NMAC ACFT PERFORMING ACROBATIC MANEUVER.

Narrative: I WAS NBOUND IN J3 CUB ABOUT 600-700 FT AGL AND 1/2 MI S OF CLOSED STONE MOUNTAIN ARPT (FORMERLY OOA). SUDDENLY SNJ ACFT APPEARED 400 FT OR SO AHEAD IN A NEAR VERT CLB. SNJ HAD APPARENTLY BUZZED THE CLOSED AIRSTRIP IN OPPOSITE DIRECTION AND MADE PULL UP TO ABOUT 1000 FT AGL. I DON'T THINK HE EVER SAW ME. SNJ WAS YELLOW AND I HAD A CLOSE VIEW OF THE BELLY. I OBSERVED THE SNJ DEPART TOWARD PDK ARPT. I MONITORED PDK TWR AND HEARD HIM RPT E OF PDK. CONTRIBUTING FACTOR WAS LOW LEVEL AEROBATIC MANEUVER BY SNJ WITHOUT CLRING THE AREA. HE WAS MUCH LOWER THAN ME AND APCHING HEAD ON BEFORE STEEP PULL UP. AS SOON AS HE APPEARED IN MY WINDSHIELD, I BANKED HARD R AND DSNDED.

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.