# NTSB FTW86LA172: Cessna 150F, N3578L, Sulphur, OK, September 28, 1986

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: September 28, 1986, 15:15 local (20:15 UTC)
- Place: Sulphur, OK
- Coordinates: 34.499191, -96.970176 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=34.4992&lon=-96.9702&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 22096
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW86LA172
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/22096/pdf
- Page: https://openairdocs.org/ntsb/FTW86LA172

## Sequence of events

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

- In flight collision with object, descent - normal
  - object - bird(s) (cause)
  - window,flight compartment window/windshield - disintegrated
- Forced landing, descent - emergency
- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - none suitable (cause)
  - terrain condition - dirt bank/rising embankment
- Nose over, landing - roll
  - landing gear,nose gear - failure,total
  - landing gear,nose gear - overload

## Analysis

THE ACFT STRUCK A LARGE BIRD AT 2,500 FT MSL IN CRUISE FLT, WHICH TOOK OUT THE WINDSHIELD. THE PLT DETERMINED THAT HE COULD NOT SUSTAIN LEVEL FLT DUE TO THE INCREASED DRAG AND LOSS OF LIFT AND ELECTED TO EXECUTE AN EMERGENCY LANDING IN A PASTURE. DURING THE LANDING ROLL IN THE ROLLING PASTURE, THE ACFT STRUCK A SMALL TERRACE, COLLASPING THE NOSE AND MAIN GEAR, AND FLIPPED OVER.

## Aircraft

- Registration: [N3578L](https://openairdocs.org/deregistered/N3578L-1988-10-06), registration cancelled 1988-10-06, S/N 15062378 (OpenAirDocs)
- Reported make and model: CESSNA 150F
- Registry model: [Cessna 150F](https://openairdocs.org/model/cessna-150f) (registry code 2071814) (OpenAirDocs)
- Category: Airplane
- Serial number: 15062378
- Airframe hours: 3405
- Engines: CONTINENTAL O-200-A 100 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Registered owner: Thomas W. Hayes
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, March 13, 1986, 80 hours before
- Departed: 97F, DAVIS, OK

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 18; student; airplane ratings: single-engine land; medical: valid medical--w/ waivers/lim; seat: left; flight hours: 41 total, 41 in this make and model, 21 as pilot in command, 31 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 180° at 15 knots, gusting 20
- Visibility: 20 statute miles
- Lowest ceiling: none
- Temperature: 84 °F, dew point 73 °F
- Altimeter: 29.00 inHg

## 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 19860928048019A](https://openairdocs.org/incident/19860928048019A), Sep 28, 1986: Cessna 500CESSNA, Sulphur, OK, Substantial damage. The aircraft was struck by a bird which damaged the prop and windscreen. The student executed a safe forced landing

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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