Near midair collision.

Attributes
ACN	284236
Time
Date	199407
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : tmb
State Reference	FL
Altitude	agl bound lower : 100 agl bound upper : 50
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : tmb
Operator	other
Make Model Name	Cessna 152
Operating Under FAR Part	Part 91
Flight Phase	descent : approach landing other
Flight Plan	VFR
Aircraft 2
Operator	other
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	cruise other other
Flight Plan	VFR
Person 1
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
Experience	controller radar : 5
ASRS Report	284236
Person 2
Affiliation	Other
Function	instruction : instructor
Qualification	pilot : cfi
Events
Anomaly	conflict : nmac non adherence : far other anomaly other
Independent Detector	other controllera other flight crewa
Resolutory Action	flight crew : took evasive action none taken : unable
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 100 vertical : 60
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Pilot/owner/operator of crop duster did not call tower to request permission to spray fields along west and north boundaries. Runway 31 was in use. Crop duster flew through the final 4 times and was a factor for 3 single cessnas, 1 of which had to take evasive action. To prevent a recurrence, the union and tower management are meeting with the owner of the crop duster. Callback conversation with reporter revealed the following information: reporter indicated the meeting was held with the pilot of the crop duster and that he was installing a radio in the aircraft and would call the tower before crossing the approach ends of the runways. Reporter also believes that the pilot was contacted by FSDO about his operation.

Original NASA ASRS Text

Title: NMAC.

Narrative: PLT/OWNER/OPERATOR OF CROP DUSTER DID NOT CALL TWR TO REQUEST PERMISSION TO SPRAY FIELDS ALONG W AND N BOUNDARIES. RWY 31 WAS IN USE. CROP DUSTER FLEW THROUGH THE FINAL 4 TIMES AND WAS A FACTOR FOR 3 SINGLE CESSNAS, 1 OF WHICH HAD TO TAKE EVASIVE ACTION. TO PREVENT A RECURRENCE, THE UNION AND TWR MGMNT ARE MEETING WITH THE OWNER OF THE CROP DUSTER. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR INDICATED THE MEETING WAS HELD WITH THE PLT OF THE CROP DUSTER AND THAT HE WAS INSTALLING A RADIO IN THE ACFT AND WOULD CALL THE TWR BEFORE XING THE APCH ENDS OF THE RWYS. RPTR ALSO BELIEVES THAT THE PLT WAS CONTACTED BY FSDO ABOUT HIS OP.

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.