# NTSB FTW84FA258: Cessna 152, N49640, Fairview, OK, May 31, 1984

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Field investigation · Final report
- Date: May 31, 1984, 08:00 local (13:00 UTC)
- Place: Fairview, OK
- Coordinates: 36.259696, -98.470573 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=36.2597&lon=-98.4706&mi=10
- Phase of flight: [Unknown](https://openairdocs.org/ntsb-phases/990) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 21125
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW84FA258
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/21125/pdf
- Page: https://openairdocs.org/ntsb/FTW84FA258

## Sequence of events

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

- Loss of control - in flight, unknown
  - physical impairment, pilot in command (cause)
- Airframe/component/system failure/malfunction, descent - uncontrolled
  - reason for occurrence undetermined (cause)
  - wing - overload (contributing factor)
  - wing - separation (contributing factor)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

THE ACFT HAD INFLT STRUCTURAL FAILURE AND SEPARATION OF SOME COMPONENTS AND CRASHED IN AN INVERTED FLAT SPIN PARTS OF THE WING AND AILERON WERE NEVER FOUND. SOME PARTS WERE FOUND ABOUT 1/2 MILE FROM THE PRIMARY IMPACT POINT. AN AUTOPSY ONTHE PLT REVEALED THE CAUSE OF DEATH WAS MASSIVE TRAUMA WITH EVIDENCE OF INCAPACITATION DUE TO ARTERIORSCLEROTIC CARDIOVASCULAR DISEASE. ALL THE FAILURES OF THE ACFTS AIRFRAME WERE DETERMINED TO BE OF AN OVERLOAD NATURE.

## Aircraft

- Registration: [N49640](https://openairdocs.org/deregistered/N49640-1984-08-20), registration cancelled 1984-08-20, S/N 15283487 (OpenAirDocs)
- Reported make and model: CESSNA 152
- Registry model: [Cessna 152](https://openairdocs.org/model/cessna-152) (registry code 2071835) (OpenAirDocs)
- Category: Airplane
- Serial number: 15283487
- Airframe hours: 1124
- Engines: LYCOMING O-235-L2C 110 horsepower reciprocating
- Damage: Destroyed
- Flight: Personal, Part 91
- Registered owner: David Martens
- Airworthiness certificate: Standard, Utility
- Last inspection: 100 hour, February 2, 1984, 65 hours before

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 59; airline transport; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: left; toxicology performed; flight hours: 1,681 total, 1,681 as pilot in command, 1 in the last 90 days, 1 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 190° at 12 knots
- Visibility: 20 statute miles
- Lowest ceiling: none
- Temperature: 59 °F, dew point 48 °F
- Altimeter: 30.00 inHg
- Observed at: WDG

## 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 19840531057169A](https://openairdocs.org/incident/19840531057169A), May 31, 1984: Cessna 152, Fairview, OK, Destroyed. Structural inflight failure occurred. Crashed in an inverted spin. Pilot had suffered massive heart attack.

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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