# NTSB CHI06CA233: Hoyt Kolb Mark III Clsc, N232S, Lakeville, MN, August 15, 2006

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Data collection · Final report
- Date: August 15, 2006, 17:20 local (22:20 UTC)
- Place: Lakeville, MN
- Coordinates: 44.518333, -93.266387
- Nearby events: https://openairdocs.org/map.md?lat=44.5183&lon=-93.2664&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 29, 2006
- Report: Approved by Office Director
- NTSB case key (mKey): 64513
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI06CA233
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/64513/pdf
- Page: https://openairdocs.org/ntsb/CHI06CA233

## Probable cause

The pilot's failure to maintain clearance from the crops which resulted in the subsequent impact with the ground.

## Sequence of events

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

- In flight collision with object, maneuvering
  - altitude/clearance - not maintained, pilot in command (cause)
- In flight collision with terrain/water, maneuvering
  - terrain condition - ground

## Analysis

The amateur-built airplane was damaged during a practice emergency landing approach when it impacted crops and the ground.  The pilot reported that he was practicing a simulated emergency approach and that he got too low during the approach.  He said that when he applied engine power the nose of the airplane pitched down due to the high pusher configuration of the engine.  He said that he was unable to prevent the airplane from striking the crops and the ground.

## Factual narrative

The amateur-built airplane was damaged during a practice emergency landing approach when it impacted crops and the ground.  The pilot reported that he was practicing a simulated emergency approach and that he got too low during the approach.  He said that when he applied engine power the nose of the airplane pitched down due to the high pusher configuration of the engine.  He said that he was unable to prevent the airplane from striking the crops and the ground.

## Aircraft

- Registration: [N232S](https://openairdocs.org/deregistered/N232S-2023-05-18), registration cancelled 2023-05-18, S/N M1121, built 2002 (OpenAirDocs)
- Reported make and model: Hoyt KOLB MARK III CLSC
- Registry model: [Hoyt Ron KOLB MARK III CLSC](https://openairdocs.org/model/hoyt-ron-kolb-mark-iii-clsc) (registry code 05614FY) (OpenAirDocs)
- Registry engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: M1121
- Engines: Rotax unk reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Ronald Hoyt
- Airworthiness certificate: Special, Experimental (Special)
- Departed: LVN, Lakeville, MN

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 70; injuries: none; private; airplane ratings: single-engine land; medical: class 3; seat: left; flight hours: 300 total, 120 in this make and model

## Weather

- Conditions: Visual (VMC), Day

## 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 20060815026649A](https://openairdocs.org/incident/20060815026649A), Aug 15, 2006: Hoytro KOLBMARKIIIC, Lakeville, MN, Substantial damage. (-23) Airman was flying a sport aircraft, practicing an emergency landing over a corn field. Airman misjudged the altitude to execute his recovery from the low…

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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