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Accidents · NTSB DEN84LA180 · Preliminary: the investigation is not finished

Rockwell CALLAIR A-9B accident near Circleville, Utah, June 15, 1984

On June 15, 1984 at about 2:00 pm local time, a Rockwell CALLAIR A-9B, registered N7660V, was substantially damaged in an accident near Circleville, Utah. It was an aerial application (crop spraying) flight under agricultural flying rules (Part 137). No one was hurt; 1 person was on board or involved. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The NTSB has not yet published a probable cause for this accident. Investigations usually take one to two years; this page updates when the final report is released.

Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.

What the record shows

Date
June 15, 1984 · about 2:00 pm local time
Place
Circleville, Utah · map
Type
Accident
Injuries
No one was hurt; 1 person was on board or involved.
Weather
visual conditions (good weather)
Aircraft
Rockwell CALLAIR A-9B CALLAIR A-
Registration
N7660V · no longer on the register · serial 1388
Damage
Substantial damage
Flight
Aerial application (crop spraying) flight · agricultural flying rules (Part 137)

The NTSB's narrative final · quoted from the NTSB record

AFTER SPRAYING SEVERAL FIELDS, THE PLT LOOKED DOWN TO CHECK A MAP DURING WHICH TIME A LOSS OF ALTITUDE OCCURRED. THE ACFT COLLIDED WITH A BARBED WIRE FENCE. ONE OF THE MAIN GEAR WAS DAMAGED & THE BARBED WIRE BECAME ENTANGLED IN THE PROPELLER. DURING A FORCED LANDING, THE REMAINING MAIN GEAR COLLAPSED.

The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.

The factual record from the NTSB's investigation tables, in plain English

Pilot

  • Certificate: commercial pilot
  • Ratings: multi-engine land; single-engine land; rotorcraft: glider
  • Flight time: 1,190 hours in all; 28 in this make and model; 45 in the last 90 days; 1,120 as pilot in command
  • Medical certificate: Class 2 (valid medical--w/ waivers/lim.)
  • Seat: ctr

The aircraft

  • Airframe total time: 4,520 hours
  • Last inspection: 100-hour inspection, April 15, 1984; 28 hours since
  • Maximum gross weight: 3,000 lb
  • Seats: 1
  • Landing gear: fixed
  • Engine: Lycoming IO-540-B1C5 (piston); 0 hours total

The flight

  • Flight plan: none
  • Runway 0

Weather at the time

  • Light: daylight
  • Visibility: 60 statute miles
  • Sky: clear
  • Temperature: 64°F (18°C), dew point 0°F (-18°C)

Injuries

FatalSeriousMinorNone
Crew1

Documents from the investigation the NTSB's docket: the evidence folder behind the report

The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.

Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.