# NTSB SEA91LA009: Cessna T210N, N4981C, Laramie, WY, October 28, 1990

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: October 28, 1990, 10:15 local (17:15 UTC)
- Place: Laramie, WY
- Coordinates: 41.30978, -105.579315 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=41.3098&lon=-105.5793&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report November 23, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 41356
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA91LA009
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/41356/pdf
- Page: https://openairdocs.org/ntsb/SEA91LA009

## Probable cause

THE PILOT DID NOT PROPERLY SET THE MIXTURE CONTROL.

## Analysis

AT THE END OF A CROSS COUNTRY FLIGHT, WHILE ON FINAL APPOACH, THE PILOT APPLIED POWER TO THE ENGINE, HOWEVER, THE ENGINE DID NOT RESPOND. THE AIRPLANE DESCENDED AND COLLIDED WITH TREES SHORT OF THE RUNWAY. THE ENGINE WAS EXAMINED AND TEST RUN. DURING THE RUN, THERE WERE NO NOTED MECHANICAL FAILURES OR MALFUNCTIONS.

## Sequence of events

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

- Loss of engine power(total) - nonmechanical, approach - vfr pattern - final approach
  - mixture - improper use of, pilot in command (cause)
- In flight collision with object, approach - vfr pattern - final approach
  - object - tree(s)

## Aircraft

- Registration: [N4981C](https://openairdocs.org/aircraft/N4981C), registered now, S/N 21063699 (OpenAirDocs)
- Reported make and model: CESSNA T210N
- Registry model: [Cessna T210N](https://openairdocs.org/model/cessna-t210n) (registry code 2073456) (OpenAirDocs)
- Registry engine: [Continental TSIO-520 series](https://openairdocs.org/engine/continental-tsio-520-series) (registry code 17040, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 63699
- Airframe hours: 3378
- Engines: CONTINENTAL TSIO-520-R 310 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Pilot Center
- Registered owner: Unknown
- Last inspection: Annual, August 28, 1990, 13 hours before
- Departed: CYS, CHEYENNE, WY
- Airport: LAR, General Brees Fld, runway 21, 7,700 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 56; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; flight hours: 421 total, 6 in this make and model, 367 as pilot in command, 18 in the last 90 days, 7 in the last 30 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 210° at 15 knots, gusting 22
- Visibility: 60 statute miles
- Lowest ceiling: none
- Temperature: 63 °F, dew point 21 °F
- Altimeter: 30.00 inHg
- Observed at: LAR

## 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 19901028047119A](https://openairdocs.org/incident/19901028047119A), Oct 28, 1990: Cessna T210N, Laramie, WY, Substantial damage. Lost power on final. Landed in trees short runway. No anomalies found.

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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