# NTSB DEN87LA161: Cessna A188B, N4703R, Cayuga, ND, June 29, 1987

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Limited investigation · Final report
- Date: June 29, 1987, 16:30 local (22:30 UTC)
- Place: Cayuga, ND
- Coordinates: 46.069549, -97.379508 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=46.0695&lon=-97.3795&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report July 5, 1988
- Report: Approved by Office Director
- NTSB case key (mKey): 17253
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN87LA161
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/17253/pdf
- Page: https://openairdocs.org/ntsb/DEN87LA161

## 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)
  - visual lookout - inadequate, pilot in command (cause)
  - inattentive, pilot in command (contributing factor)
  - clearance - not maintained, pilot in command (cause)
- Loss of control - in flight, maneuvering - aerial application
  - wing - separation (contributing factor)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

THE PLT WAS COMPLETING A SWATH RUN AND STRUCK A POWER LINE WITH THE RIGHT WING, SEVERING THE WING. THE AIRCRAFT DID A SNAP ROLL TO THE RIGHT AND IMPACTED IN A FIELD.

## Aircraft

- Registration: [N4703R](https://openairdocs.org/deregistered/N4703R-1990-07-19), registration cancelled 1990-07-19, S/N 18802303T (OpenAirDocs)
- Reported make and model: CESSNA A188B
- Registry model: [Cessna A188B](https://openairdocs.org/model/cessna-a188b) (registry code 2073005) (OpenAirDocs)
- Category: Airplane
- Serial number: 18802303T
- Airframe hours: 1398
- Engines: CONTINENTAL IO-520-023 300 horsepower reciprocating
- Damage: Destroyed
- Flight: Aerial application, Part 137
- Registered owner: Alfred Dahl
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, December 27, 1986, 80 hours before
- Departed: COGSWELL, ND
- Destination: CAYUGA, ND

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 74; commercial; airplane ratings: single-engine land; medical: invalid medical for flight; seat: front; flight hours: 15,000 total, 15,000 as pilot in command, 1 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 360° at 8 knots
- Lowest ceiling: none

## 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 19870629027189A](https://openairdocs.org/incident/19870629027189A), Jun 29, 1987: Cessna A188B, Cayuga, ND, Destroyed. Pilot attempted to go under powerlines on spray run. Vertical stabilizer severed. Medical certificate revoked.

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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