Narrative:

Shortly after takeoff from runway 12 at warren (D37); while on upwind I noticed a crop duster moving from our right to our left and we were going to fly above and behind it. The crop duster then descended and turned onto final for runway 30; the opposite runway from the one we just departed; and it became a collision hazard. I took the controls and deviated to the right to avoid the crop duster. The crop duster did not appear to deviate. It passed a few hundred feet from us and landed on runway 30. There was one other aircraft in the pattern for runway 12 at the time and the crop duster did not use a radio. The other aircraft was at a low altitude and blocked from my view by trees while we were on the runway before takeoff. Other factors are the other aircraft's failure to observe the flow of traffic or communicate on CTAF prior to entering the traffic pattern.

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Original NASA ASRS Text

Title: A C172 instructor pilot reported a near miss with a crop duster who was apparently not using CTAF at D37.

Narrative: Shortly after takeoff from Runway 12 at Warren (D37); while on upwind I noticed a crop duster moving from our right to our left and we were going to fly above and behind it. The crop duster then descended and turned onto final for Runway 30; the opposite runway from the one we just departed; and it became a collision hazard. I took the controls and deviated to the right to avoid the crop duster. The crop duster did not appear to deviate. It passed a few hundred feet from us and landed on Runway 30. There was one other aircraft in the pattern for Runway 12 at the time and the crop duster did not use a radio. The other aircraft was at a low altitude and blocked from my view by trees while we were on the runway before takeoff. Other factors are the other aircraft's failure to observe the flow of traffic or communicate on CTAF prior to entering the traffic pattern.

Data retrieved from NASA's ASRS site as of April 2012 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.