# NTSB FTW86FA026: Cessna 150E, N4066U, Shawnee, OK, December 21, 1985

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Field investigation · Final report
- Date: December 21, 1985, 15:25 local (21:25 UTC)
- Place: Shawnee, OK
- Coordinates: 35.330501, -96.910682 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=35.3305&lon=-96.9107&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 21880
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW86FA026
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/21880/pdf
- Page: https://openairdocs.org/ntsb/FTW86FA026

## Sequence of events

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

- Loss of control - in flight, takeoff - initial climb
  - stolen aircraft/unauthorized use - intentional, unqualified person (contributing factor)
  - psychological condition, pilot in command (contributing factor)
  - stall - inadvertent, unqualified person (contributing factor)
- In flight collision with terrain/water, descent - uncontrolled
  - seat belt - not used, unqualified person (contributing factor)
  - descent - uncontrolled, unqualified person (contributing factor)

## Analysis

THE UNLICENSED PLT WAS CONDUCTING AN UNAUTHORIZED FLT WHEN THE ACCIDENT OCCURRED. THE PLT TOOK OFF FROM A SOD FLD ADJACENT TO A CLOSED RWY AT SHAWNEE, OK. WITNESSES STATED THAT THE ACFT ASSUMED AN EXCESSIVELY NOSE HIGH ATTITUDE IMMEDIATELY AFTER TAKEOFF AND THE LEFT WING DROPPED FOLLOWED BY THE NOSE AT APRX 50 FT AGL. THE ACFT IMPACTED IN AN EXTREME NOSE DOWN ATTITUDE. THE PLT, WHO WAS UNRESTRAINED, WAS FATALLY INJURED. THE PLT HAD RECEIVED THERAPY FOR MENTAL DISORDERS OVER AN EXTENDED PERIOD OF TIME.

## Aircraft

- Registration: N4066U (not matched to a registry record)
- Reported make and model: CESSNA 150E
- Category: Airplane
- Serial number: 15061466
- Airframe hours: 5176
- Engines: CONTINENTAL O-200-A 100 horsepower reciprocating
- Damage: Destroyed
- Flight: Part 91
- Registered owner: Lari Trollinger
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, November 26, 1984
- Departed: SNL, SHAWNEE, OK
- Airport: SNL, Shawnee Muni, runway 12, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 48; seat: left; toxicology performed

## Weather

- Conditions: Visual (VMC), Day
- Wind: 250° at 10 knots
- Visibility: 7 statute miles
- Lowest ceiling: none
- Temperature: 50 °F, dew point -0 °F

## 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 19851221063189A](https://openairdocs.org/incident/19851221063189A), Dec 21, 1985: Cessna 150E, Shawnee, OK, Destroyed. Unlicensed pilot stalled aircraft during takeoff on unauthorized flight.

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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