# NTSB FTW85LA303: Cessna 150M, N187AR, Horntown, OK, August 1, 1985

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: August 1, 1985, 15:15 local (20:15 UTC)
- Place: Horntown, OK
- Coordinates: 34.959648, -96.249404 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=34.9596&lon=-96.2494&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 21812
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW85LA303
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/21812/pdf
- Page: https://openairdocs.org/ntsb/FTW85LA303

## Sequence of events

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

- Loss of engine power(partial) - nonmechanical, cruise - normal
  - weather condition - carburetor icing conditions (cause)
  - carburetor heat - not selected, pilot in command (cause)
  - weather evaluation - not understood, pilot in command (cause)
- In flight collision with object, descent - emergency
  - object - wire,static
  - object - tree(s)
- In flight collision with terrain/water, landing - flare/touchdown

## Analysis

THE ACFT EXPERIENCED AN INTERMITTENT POWER LOSS IN CRUISE FLT. THE PLT'S ATTEMPTS TO REMEDY THE PROBLEM WERE NOT SUCCESSFUL AND HE ELECTED TO EXECUTE A PRECAUTIONARY LANDING ON A ROAD. DURING THE LANDING, THE ACFT STRUCK A WIRE AND VEERED INTO TREES ALONG THE SIDE OF THE ROAD. THE PLT STATED THAT HE HAD NOT APPLIED CARB HEAT DURING THE EMERGENCY BECAUSE HE CONSIDERED CARB ICE IMPROBABLE. THE ICING PROBABILITY CHART INDICATED THE POSSIBILITY OF CARB ICING AT GLIDE AND CRUISE PWR SETTINGS. ACFT WAS FUEL WITH A MIXTURE OF AUTO GAS AND AVIATION FUEL.

## Aircraft

- Registration: N187AR (not matched to a registry record)
- Reported make and model: CESSNA 150M
- Category: Airplane
- Serial number: 15077574
- Airframe hours: 3898
- Engines: CONTINENTAL O-200-A 100 horsepower reciprocating
- Damage: Destroyed
- Flight: Personal, Part 91
- Operator: Michael N. Trusty, doing business as Aviation Fellowship
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, July 1, 1985, 37 hours before
- Departed: OF8, SAND SPRINGS, OK
- Destination: HUGHE COUNTY, OK

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 28; private; airplane ratings: single-engine land; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 360 total, 151 in this make and model, 230 as pilot in command, 75 in the last 90 days, 4 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 10° at 5 knots
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 100 °F, dew point 66 °F
- Altimeter: 29.00 inHg
- Observed at: MLC, 30 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 19850801035349A](https://openairdocs.org/incident/19850801035349A), Aug 1, 1985: Cessna 150M, Horntown, OK, Destroyed. Engine lost power en route. Struck a wire during attempt to land on a road. Suspect carburetor ice.

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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