# NTSB FTW91LA122: Cessna 150M, N45458, Wilburton, OK, July 13, 1991

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 13, 1991, 09:55 local (14:55 UTC)
- Place: Wilburton, OK
- Coordinates: 34.909084, -95.300483 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=34.9091&lon=-95.3005&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report March 31, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 23367
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW91LA122
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/23367/pdf
- Page: https://openairdocs.org/ntsb/FTW91LA122

## Probable cause

THE PILOT'S DECISION TO ABORT THE TAKE OFF WITH INSUFFICIENT DISTANCE REMAINING. FACTORS WERE THE FLUCTUATING ENGINE AND THE TREES IN HIS PATH.

## Sequence of events

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

- Loss of engine power, takeoff
  - powerplant - fluctuating (contributing factor)
  - reason for occurrence undetermined
  - aborted takeoff - initiated, pilot in command (cause)
  - distance - inadequate, pilot in command (cause)
  - object - tree(s)
  - wing - bent
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

DURING A DAYLIGHT DEPARTURE FROM A PASTURE THE PILOT REPORTED MOMENTARY FLUCTUATION OF ENGINE POWER. THE PRIVATE PILOT ATTEMPTED TO ABORT THE TAKEOFF WITH INSUFFICIENT GROUND RUN AVAILABLE.  AS THE PILOT APPROACHED THE END OF THE PASTURE HE ATTEMPTED TO 'HOP' THE AIRPLANE OVER A FENCE WITH ELEVATOR INPUT. THE WING STRUCK A TREE, AND THE AIRPLANE WENT OUT OF CONTROL.

## Aircraft

- Registration: [N45458](https://openairdocs.org/deregistered/N45458-1992-10-16), registration cancelled 1992-10-16, S/N 15076933 (OpenAirDocs)
- Reported make and model: CESSNA 150M
- Registry model: [Cessna 150M](https://openairdocs.org/model/cessna-150m) (registry code 2071830) (OpenAirDocs)
- Category: Airplane
- Serial number: 15076933
- Engines: CONTINENTAL O-200-A 100 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: D. Robertson
- Registered owner: D. Robertson

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 21; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; flight hours: 268 total, 53 in this make and model, 63 as pilot in command, 5 in the last 90 days, 3 in the last 30 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: -0 °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 19910713027239A](https://openairdocs.org/incident/19910713027239A), Jul 13, 1991: Cessna 150M, Wilburton, OK, Substantial damage. Tried to depart a pasture with trees. Near liftoff elected to abort due to performance. Struck tree severing engine

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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