[en] The experiment consisted of measurements in coincidence with π⁰ (using the π⁰ spectrometer) and the proton (using a special proton arm built for this experiment). The experimenters finished taking data by the last cycle of 1984. The reaction ¹⁶O(π⁺,π⁰p) was measured at T/sub π/=165 and 245 MeV for the π⁰ angles between 30 and 130⁰. At each angle the protons were detected by using an array of plastic scintillator telescopes, which covered the quasi-free angular-correlation region. Although the data are still being analyzed, preliminary results for the first run indicate that the quasi-free process (a knock-out of a p-shell nucleon) can be identified. When analysis is complete, we hope that it will either confirm the model suggested or shed new light on the process