VFR C152 experienced near midair collision departing 3AU at 2800 ft.

Attributes
ACN	610694
Time
Date	200403
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : 3au.airport
State Reference	KS
Altitude	msl single value : 2800
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Flight Phase	cruise : level
Flight Plan	None
Aircraft 2
Operator	general aviation : personal
Make Model Name	Sundowner 23
Operating Under FAR Part	Part 91
Flight Phase	cruise : enroute altitude change cruise : level
Flight Plan	VFR
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : commercial pilot : cfi pilot : instrument
Experience	flight time last 90 days : 20 flight time total : 1500 flight time type : 1200
ASRS Report	610694
Person 2
Affiliation	other
Function	flight crew : single pilot
Events
Anomaly	conflict : airborne critical conflict : nmac
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Miss Distance	horizontal : 200 vertical : 0
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

While providing flight instruction to a private pilot student we were on a straight-out departure climb from runway 36 at 3AU (steering heading 360 degrees). Approximately 3 mi north of the airport, I noticed relative movement to our left (west). A single-engine low wing GA aircraft was headed directly at our aircraft on a heading of approximately 090 degrees at approximately our same altitude. Within 1 second of seeing the other aircraft, it banked hard right and dove to pass just behind our aircraft. We continued our flight, and tried to ascertain the aircraft's registration number by monitoring the combined TA frequency at 3AU.

Original NASA ASRS Text

Title: VFR C152 EXPERIENCED NMAC DEPARTING 3AU AT 2800 FT.

Narrative: WHILE PROVIDING FLT INSTRUCTION TO A PVT PLT STUDENT WE WERE ON A STRAIGHT-OUT DEP CLB FROM RWY 36 AT 3AU (STEERING HDG 360 DEGS). APPROX 3 MI N OF THE ARPT, I NOTICED RELATIVE MOVEMENT TO OUR L (W). A SINGLE-ENG LOW WING GA ACFT WAS HEADED DIRECTLY AT OUR ACFT ON A HDG OF APPROX 090 DEGS AT APPROX OUR SAME ALT. WITHIN 1 SECOND OF SEEING THE OTHER ACFT, IT BANKED HARD R AND DOVE TO PASS JUST BEHIND OUR ACFT. WE CONTINUED OUR FLT, AND TRIED TO ASCERTAIN THE ACFT'S REGISTRATION NUMBER BY MONITORING THE COMBINED TA FREQ AT 3AU.

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.