# NTSB FTW84LA257: Cessna A188B, N731KU, Ripley, OK, May 31, 1984

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: May 30, 1984, 19:00 local (May 31, 1984, 00:00 UTC)
- Place: Ripley, OK
- Coordinates: 36.009834, -96.899688 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=36.0098&lon=-96.8997&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 21355
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW84LA257
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/21355/pdf
- Page: https://openairdocs.org/ntsb/FTW84LA257

## 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
  - altitude - inadequate, pilot in command (contributing factor)
  - object - wire,transmission (contributing factor)
  - visual lookout - inadequate, pilot in command (cause)
  - diverted attention, pilot in command (contributing factor)
- In flight collision with terrain/water, descent - uncontrolled
  - terrain condition - ground

## Analysis

ACFT CONTACTED THREE UNMARKED TRANSMISSION POWER LINES WHICH CROSSED THE CIMARRON RIVER. THE PLT WAS FLYING OVER THE RIVER TRYING TO LOCATE A FIELD WHICH WAS TO BE SPRAYED. THE ACFT THEN CRASHED ON NEARBY RIVER BED.

## Aircraft

- Registration: [N731KU](https://openairdocs.org/deregistered/N731KU-1985-10-08), registration cancelled 1985-10-08, S/N 18802961T (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: 18802961T
- Airframe hours: 1200
- Engines: CONTINENTAL IO-520-D 300 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Registered owner: Tom F. Knox
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, July 10, 1983
- Departed: STILLWATER, OK

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 30; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; seat: front; flight hours: 2,778 total, 1,500 in this make and model, 2,713 as pilot in command, 10 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 170° at 17 knots
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 70 °F, dew point 52 °F
- Altimeter: 30.00 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 19840530071339A](https://openairdocs.org/incident/19840530071339A), May 30, 1984: Cessna A188B, Ripley, OK, Substantial damage. Struck wires over a riverbed while viewing field to begin a swath run. Crashed in dry riverbed.

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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