# NTSB MKC90LA093: Lake LA-4-200, N9309N, Eden Prairie, MN, April 23, 1990

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: April 22, 1990, 20:45 local (Apr 23, 1990, 01:45 UTC)
- Place: Eden Prairie, MN
- Coordinates: 44.929367, -93.460968 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=44.9294&lon=-93.4610&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report September 28, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 34967
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC90LA093
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/34967/pdf
- Page: https://openairdocs.org/ntsb/MKC90LA093

## Probable cause

COLLISION WITH ANIMAL, FACTORS IN THE ACCIDENT WERE LIGHT CONDITION, DUSK, AND REMEDIAL ACTION WAS NOT POSSIBLE.

## Sequence of events

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

- In flight collision with object, landing - flare/touchdown
  - object - animal(s) (cause)
  - light condition - dusk (contributing factor)
  - remedial action - not possible, pilot in command (contributing factor)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

THE COMMERCIAL PILOT SAID THAT DURING THE LANDING FLARE, AT DUSK, A DEER RAN ACROSS THE PATH OF THE ACFT AND WAS STRUCK BY THE RIGHT LANDING GEAR. THE RIGHT WING WAS SHEARED OFF, WITH THE GEAR ATTACHED, AND THE ACFT CARTWHEELED TO A STOP.

## Aircraft

- Registration: N9309N (not matched to a registry record)
- Reported make and model: LAKE LA-4-200
- Category: Airplane
- Serial number: 471
- Engines: LYCOMING IO-360-A1B 200 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Ardoyna, John W.
- Departed: WS24, ROUND LAKE, WI
- Destination: FCM
- Airport: FCM, Flying Cloud, runway 9, 3,909 × 75 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 47; commercial; airplane ratings: single-engine land, single-engine sea, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; flight hours: 5,000 total, 400 in this make and model, 4,900 as pilot in command, 25 in the last 90 days, 20 in the last 30 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Dusk
- Wind: 130° at 15 knots
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 70 °F, dew point -0 °F
- Altimeter: 29.00 inHg
- Observed at: FCM, 1 nm away

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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