Cessna 188 (Ag Wagon/Ag Truck/Ag Husky)
Flight Crew Commercial; Flight Crew Flight Instructor; Flight Crew Instrument
Flight Crew Last 90 Days 30; Flight Crew Total 16500; Flight Crew Type 8000
Situational Awareness; Workload; Confusion; Communication Breakdown
Conflict NMAC; Deviation / Discrepancy - Procedural Published Material / Policy
General None Reported / Taken
Human Factors; Airport; Environment - Non Weather Related; Procedure
Conducting Part 137 operations on South part of airport. Did not see or hear communications from Helicopter approaching airport. After Helicopter made his initial call to the unicom; the FBO responded that ag operations we being conducted on the South part of airport.
A CE-188 conducting AG spray operations near a Midwest airport had a near miss after a helicopter pilot approaching the airport did not make CTAF position reports.