# NTSB DEN84LA180: Rockwell Callair A-9B, N7660V, Circleville, UT, June 15, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: June 15, 1984, 08:00 local (14:00 UTC)
- Place: Circleville, UT
- Coordinates: 38.180175, -112.21939 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=38.1802&lon=-112.2194&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 16401
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN84LA180
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/16401/pdf
- Page: https://openairdocs.org/ntsb/DEN84LA180

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- In flight collision with object, cruise
  - visual lookout - not maintained, pilot in command (cause)
  - diverted attention, pilot in command (cause)
  - object - fence (contributing factor)
  - clearance - not maintained, pilot in command (cause)
- Forced landing, landing
- Gear collapsed, landing
  - landing gear - overload

## Analysis

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.

## Aircraft

- Registration: [N7660V](https://openairdocs.org/deregistered/N7660V-1998-03-23), registration cancelled 1998-03-23, S/N 1388 (OpenAirDocs)
- Reported make and model: ROCKWELL CALLAIR A-9B (CALLAIR A-)
- Registry model: [Aero Commander CALLAIR A-9B](https://openairdocs.org/model/aero-commander-callair-a-9b) (registry code 0144206) (OpenAirDocs)
- Category: Airplane
- Serial number: 1388
- Airframe hours: 4520
- Engines: LYCOMING IO-540-B1C5 290 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Operator: Parowan Crop Dusting Service
- Registered owner: Denton Harris
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: 100 hour, April 15, 1984, 28 hours before

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 38; commercial; airplane ratings: multi-engine land, single-engine land; medical: class 2, valid medical--w/ waivers/lim; seat: center; flight hours: 1,190 total, 28 in this make and model, 1,120 as pilot in command, 45 in the last 90 days, 4 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 60 statute miles
- Lowest ceiling: none
- Temperature: 64 °F

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19840615029359A](https://openairdocs.org/incident/19840615029359A), Jun 15, 1984: Airpts A9B, Circleville, UT, Substantial damage. Struck a fence and crash landed during a spray run. Looked inside at plot map. Had no ag operating certificate.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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