# NTSB CHI93LA168: Cessna 150L, N10011, Washington, MO, May 13, 1993

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: May 13, 1993, 17:30 local (22:30 UTC)
- Place: Washington, MO
- Coordinates: 38.549064, -91.009788 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=38.5491&lon=-91.0098&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report November 15, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 15714
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI93LA168
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/15714/pdf
- Page: https://openairdocs.org/ntsb/CHI93LA168

## Probable cause

THE PILOT'S FAILURE TO MAINTAIN PROPER RUNWAY ALIGNMENT.

## Sequence of events

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

- In flight collision with object, takeoff - initial climb
  - object - vehicle (contributing factor)
  - weather condition - crosswind
  - proper alignment - not maintained, pilot in command(cfi) (cause)
  - remedial action - performed, pilot in command(cfi)

## Analysis

THE INSTRUCTOR (CFI) WAS DEMONSTRATING A SOFT FIELD TAKEOFF WHEN THE ACCIDENT OCCURRED.  BOTH THE INSTRUCTOR AND STUDENT REPORTED SEEING THE MOWING TRACTOR OFF THE WEST SIDE OF THE RUNWAY PRIOR TO THE TAKEOFF.  BOTH STATED THAT AS THE NOSE OF THE AIRPLANE WAS LOWERED AFTER BECOMING AIRBORNE, THEY SAW THE TRACTOR DIRECTLY TO THE LEFT SIDE OF THE AIRPLANE. THE CFI STATED HE VEERED RIGHT IN AN ATTEMPT TO AVOID THE TRACTOR; HOWEVER, THE LEFT WING CONTACTED THE ROLL BAR OF THE TRACTOR.  THE CFI REDUCED THE POWER AND LANDED ON THE REMAINING RUNWAY.  THE TRACTOR OPERATOR STATED HE SAW THE AIRPLANE TAKING OFF AND WAS MAKING A RIGHT TURN TO MOVE FURTHER AWAY FROM THE RUNWAY WHEN THE AIRPLANE VEERED TO THE LEFT AND STRUCK THE TRACTOR. A SLIGHT RIGHT CROSSWIND WAS PRESENT AT THE TIME OF THE ACCIDENT.

## Aircraft

- Registration: [N10011](https://openairdocs.org/deregistered/N10011-2013-08-07), registration cancelled 2013-08-07, S/N 15074752, built 1973 (OpenAirDocs)
- Reported make and model: CESSNA 150L
- Registry model: [Cessna 150L](https://openairdocs.org/model/cessna-150l) (registry code 2071826) (OpenAirDocs)
- Registry engine: [Continental 0-200 series](https://openairdocs.org/engine/continental-0-200-series) (registry code 17020, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 15074752
- Airframe hours: 4638
- Engines: CONTINENTAL O-200-A 100 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Operator: Skyline Aviation
- Registered owner: Braddock Enterprises, Inc.
- Airworthiness certificate: Standard, Normal; Standard, Utility
- Last inspection: 100 hour, April 28, 1993, 40 hours before
- Destination: SUS, CHESTERFIELD, MO
- Airport: MO49, Washington Memorial, runway 34, 3,280 × 49 ft, concrete

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 22; flight instructor, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: right; flight hours: 925 total, 240 in this make and model, 860 as pilot in command

## Weather

- Conditions: Visual (VMC), Dawn
- Wind: 350° at 6 knots
- Visibility: 25 statute miles
- Lowest ceiling: none

## 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 19930513013829A](https://openairdocs.org/incident/19930513013829A), May 13, 1993: Cessna 150L, Washington, MO, Substantial damage. On lift off left wing struck tractor that was mowing adjacent to runway. No radio or high visible paint on tractor.

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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