Narrative:

I was departing the class D airspace with my student (takeoff from runway 29 at hpn) on a left downwind departure eastbound. I made a request with tower for a northeast departure on course to oxc. ATC pointed out a malibu/mirage in my 11 O'clock and I reported the aircraft in sight. ATC granted my request, provided that I maintain visual separation. While watching the mirage I noticed that it was getting closer quickly and I proceeded to take evasive action in which I banked to the right and started a descent. The pilot of the mirage then complained that he had a near miss. In my estimation the mirage pilot should have also been attentive on the radio and tower should have called me (C152) to him. The pilot of the mirage made no effort to avoid me other than to complain to tower.

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Original NASA ASRS Text

Title: INSTRUCTOR WITH SPI HAS NMAC ON INITIAL CLB.

Narrative: I WAS DEPARTING THE CLASS D AIRSPACE WITH MY STUDENT (TKOF FROM RWY 29 AT HPN) ON A L DOWNWIND DEP EBOUND. I MADE A REQUEST WITH TWR FOR A NE DEP ON COURSE TO OXC. ATC POINTED OUT A MALIBU/MIRAGE IN MY 11 O'CLOCK AND I RPTED THE ACFT IN SIGHT. ATC GRANTED MY REQUEST, PROVIDED THAT I MAINTAIN VISUAL SEPARATION. WHILE WATCHING THE MIRAGE I NOTICED THAT IT WAS GETTING CLOSER QUICKLY AND I PROCEEDED TO TAKE EVASIVE ACTION IN WHICH I BANKED TO THE R AND STARTED A DSCNT. THE PLT OF THE MIRAGE THEN COMPLAINED THAT HE HAD A NEAR MISS. IN MY ESTIMATION THE MIRAGE PLT SHOULD HAVE ALSO BEEN ATTENTIVE ON THE RADIO AND TWR SHOULD HAVE CALLED ME (C152) TO HIM. THE PLT OF THE MIRAGE MADE NO EFFORT TO AVOID ME OTHER THAN TO COMPLAIN TO TWR.

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.