# NTSB CHI87DEP08: Unknown Avid Flyer, N169AF, Cottage Grove, WI, July 3, 1987

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: July 3, 1987, 12:20 local (17:20 UTC)
- Place: Cottage Grove, WI
- Coordinates: 43.080711, -89.199104 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=43.0807&lon=-89.1991&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report February 14, 1989
- Report: Approved by Office Director
- NTSB case key (mKey): 13579
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI87DEP08
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/13579/pdf
- Page: https://openairdocs.org/ntsb/CHI87DEP08

## Sequence of events

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

- Undershoot, approach - vfr pattern - final approach
  - proper descent rate - not maintained, pilot in command (cause)
  - lack of total experience in type operation, pilot in command (contributing factor)
- In flight collision with terrain/water, landing - flare/touchdown
  - terrain condition - roadway/highway
  - proper touchdown point - not attained, pilot in command (contributing factor)
- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - runway

## Analysis

ON RETURN FROM THE SECOND TEST FLIGHT IN THE EXPERIMENTAL AIRCRAFT, THE PILOT FAILED TO MAINTAIN THE PROPER DESCENT RATE ON SHORT FINAL. AN ATTEMPT TO ADD POWER TO CORRECT THE SITUATION WAS UNSUCCESSFUL, AND THE AIRCRAFT TOUCHED DOWN ON A HIGHWAY SHORT OF THE RUNWAY. IT THEN BOUNCED AND VEERED TO THE RIGHT AND CAME TO A REST ON THE RIGHT SIDE OF THE RUNWAY.

## Aircraft

- Registration: [N169AF](https://openairdocs.org/aircraft/N169AF), registered now, S/N 0169 (OpenAirDocs)
- Reported make and model: UNKNOWN AVID FLYER
- Registry model: [Litzkow Michael J AVID FLYER](https://openairdocs.org/model/litzkow-michael-j-avid-flyer) (registry code 05613SK) (OpenAirDocs)
- Registry engine: [Cuyuna ALL MDLS A/B](https://openairdocs.org/engine/cuyuna-all-mdls-a-b) (registry code 19050, reciprocating) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: 20944
- Airframe hours: 2
- Engines: CUYUNA UL430RR 43 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Michael J. Litzkow
- Airworthiness certificate: Special, Experimental (Special)
- Last inspection: Unknown, June 29, 1987, 2 hours before
- Airport: 52C, Blackhawk Fld., runway 27, 2,600 × 40 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 34; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 168 total, 2 in this make and model, 123 as pilot in command, 2 in the last 90 days, 2 in the last 30 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 300° at 5 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 81 °F

## 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 19870703037359A](https://openairdocs.org/incident/19870703037359A), Jul 3, 1987: Amtr AVIDFLYER, Cottage Grove, WI, Substantial damage. Landed short of the runway and struck lip of a road that was perpendicular to runway. Bent nose gear and propeller.

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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