# NTSB MKC88LA100: Cessna 172K, N8122V, Bismark, MO, May 29, 1988

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Limited investigation · Final report
- Date: May 28, 1988, 20:30 local (May 29, 1988, 01:30 UTC)
- Place: Bismark, MO
- Coordinates: 37.759654, -90.62004 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=37.7597&lon=-90.6200&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report November 16, 1989
- Report: Approved by Office Director
- NTSB case key (mKey): 34577
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC88LA100
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/34577/pdf
- Page: https://openairdocs.org/ntsb/MKC88LA100

## Sequence of events

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

- In flight collision with terrain/water, maneuvering
  - buzzing - performed, pilot in command (contributing factor)
  - clearance - misjudged, pilot in command (cause)
  - ostentatious display, pilot in command (cause)
  - impairment(alcohol), pilot in command (cause)
  - terrain condition - water

## Analysis

THE ACCIDENT AIRCRAFT WAS OBSERVED MAKING SEVERAL LOW PASSES OVER LAKE BISMARK NEAR BISMARK, MISSOURI. WITNESSES STATED THAT, FOLLOWING THE LAST PASS, THE AIRCRAFT CONTACTED THE WATER AND SANK. THE PILOT'S BLOOD ALCOHOL CONTENT WAS ANALYZED AS .14 PERCENT FOLLOWING THE ACCIDENT.

## Aircraft

- Registration: [N8122V](https://openairdocs.org/deregistered/N8122V-1989-12-19), registration cancelled 1989-12-19, S/N R1722314 (OpenAirDocs)
- Reported make and model: CESSNA 172K
- Registry model: [Cessna R172K](https://openairdocs.org/model/cessna-r172k) (registry code 2072431) (OpenAirDocs)
- Category: Airplane
- Serial number: R-1722314
- Engines: CONTINENTAL IO-360-CCK 195 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Richard O'Keef
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, April 30, 1988
- Departed: H57, BISMARK, MO
- Airport: Off Airport

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 34; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; toxicology performed; flight hours: 1,464 total, 25 in this make and model, 108 in the last 90 days, 30 in the last 30 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Dusk
- Wind: 180° at 8 knots
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 75 °F, dew point 57 °F
- Altimeter: 30.00 inHg
- Observed at: CGI, 70 nm away

## 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 19880528025479A](https://openairdocs.org/incident/19880528025479A), May 28, 1988: Cessna STC172, Bismarck, MO, Substantial damage. Caught left wing in lake waters and cartwheeled. Witnesses observed pilot buzzing the lake area.

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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