Narrative:

I was approaching [the airport] from the northeast at 2;300 ft. I made a radio call 7 miles out stating my intention to enter the left downwind on a 45 degree angle for runway xx. I made additional calls at downwind; base and final. At about 200 ft above ground level and 1;500 ft from the runway I noticed a crop duster flying very low across my flight path from west to east. The crop duster flew underneath me eastbound and then turned right to line up with the taxiway. The aircraft then landed on the grass east of the runway and ahead of me. I was watching the crop duster the whole time and was ready to execute a go-around. I did not see any danger at the time so I completed my landing but did a touch and go. For additional safety I should have done a go-around and not completed the landing. I just thought it was safer to get on the ground as I did.

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Original NASA ASRS Text

Title: An M20 pilot was on short final after announcing his position at several points; and observed a crop duster cross underneath him and land in the grass alongside of the runway in use.

Narrative: I was approaching [the airport] from the northeast at 2;300 FT. I made a radio call 7 miles out stating my intention to enter the left downwind on a 45 degree angle for Runway XX. I made additional calls at downwind; base and final. At about 200 FT above ground level and 1;500 FT from the runway I noticed a crop duster flying very low across my flight path from west to east. The crop duster flew underneath me eastbound and then turned right to line up with the taxiway. The aircraft then landed on the grass east of the runway and ahead of me. I was watching the crop duster the whole time and was ready to execute a go-around. I did not see any danger at the time so I completed my landing but did a touch and go. For additional safety I should have done a go-around and not completed the landing. I just thought it was safer to get on the ground as I did.

Data retrieved from NASA's ASRS site as of July 2013 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.