# NTSB DEN89DTK01: Piper PA-36-300, N82644, Agar, SD, May 23, 1989

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Final report
- Date: May 23, 1989, 07:45 local (12:45 UTC)
- Place: Agar, SD
- Coordinates: 44.829833, -100.06961 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=44.8298&lon=-100.0696&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed, report August 22, 1990
- Report: Approved by Office Director
- NTSB case key (mKey): 17558
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN89DTK01
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/17558/pdf
- Page: https://openairdocs.org/ntsb/DEN89DTK01

## Probable cause

THE PILOT'S FAILURE TO MAINTAIN AN ADEQUATE CLEARANCE WITH THE POWERLINES. THE POWERLINE IS CONSIDERED TO BE A CONTRIBUTING FACTOR TO THE ACCIDENT.

## Sequence of events

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

- In flight collision with object, maneuvering - aerial application
  - object - wire,transmission (contributing factor)
  - clearance - not maintained, pilot in command (cause)

## Analysis

THE PILOT COMPLETED A SMOKE DISPENSING RUN FROM WEST TO EAST ALONG THE NORTH EDGE OF A FIELD TO BE SPRAYED. THERE IS A POWERLINE ALONG THE NORTH EDGE OF THE FIELD. UPON COMPLETION OF THE SMOKE RUN THE PILOT EXECUTED A LEFT TURNAROUND. AT THE COMPLETION OF THE TURNAROUND THE AIRCRAFT COLLIDED WITH THE POWERLINE AND CRASHED.

## Aircraft

- Registration: [N82644](https://openairdocs.org/deregistered/N82644-1990-02-27), registration cancelled 1990-02-27, S/N 367760126 (OpenAirDocs)
- Reported make and model: PIPER PA-36-300
- Registry model: [Piper PA-36-300](https://openairdocs.org/model/piper-pa-36-300) (registry code 7103612) (OpenAirDocs)
- Category: Airplane
- Serial number: 36-7760126
- Engines: LYCOMING IO-540-K1 300 horsepower reciprocating
- Damage: Destroyed
- Flight: Aerial application, Part 137
- Operator: Brett Barber, doing business as Brett'S Spray Service
- Registered owner: Brett'S Spray Service, Inc
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, December 9, 1988
- Departed: 98D, ONIDA, SD

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 66; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--w/ waivers/lim; seat: front; flight hours: 12,500 total, 12,400 as pilot in command, 50 in the last 90 days, 20 in the last 30 days, 5 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 110° at 5 knots
- Visibility: 35 statute miles
- Lowest ceiling: none
- Temperature: 57 °F, dew point 54 °F
- Altimeter: 29.00 inHg

## 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 19890523012709A](https://openairdocs.org/incident/19890523012709A), May 23, 1989: Piper PA36300, Agar, SD, Destroyed, 1 fatal. Struck wires and power pole on a procedure turn from a smoke run. Aircraft cartwheeled and destroyed. Pilot expired

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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