# NTSB CHI91DEP06: Avid Flyer Avid Flyer, N369AF, Endeavor, WI, June 7, 1991

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: June 7, 1991, 16:15 local (21:15 UTC)
- Place: Endeavor, WI
- Coordinates: 43.709945, -89.460655 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=43.7099&lon=-89.4607&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report March 24, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 14839
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI91DEP06
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/14839/pdf
- Page: https://openairdocs.org/ntsb/CHI91DEP06

## Probable cause

THE PILOT IN COMMAND'S INABILITY TO EFFECTIVELY ELIMINATE CARBURETOR ICE TO AVOID AN EMERGENCY LANDING.

## Sequence of events

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

- Loss of engine power(partial) - nonmechanical, cruise
  - weather condition - carburetor icing conditions
  - carburetor heat - not possible, pilot in command (cause)
- Forced landing, descent - emergency
- On ground/water collision with object, landing - roll
  - object - tree(s)

## Analysis

WHILE IN CRUISE FLIGHT THE ENGINE BEGAN TO LOSE POWER AND RUN ROUGH.  THE PILOT HAD EXPERIENCED CARBURETOR ICING DURING A LOW POWER GROUND RUN PREVIOUSLY.  HE BELIEVED THIS TO BE THE REASON FOR THE CURRENT PARTIAL LOSS OF POWER.  HE WAS UNABLE TO MAINTAIN FLIGHT AND INITIATED AN EMERGENCY LANDING ON A ROADWAY.  HE WAS UNABLE TO STOP THE AIRCRAFT PRIOR TO IMPACT WITH A TREE. THE ENGINE WAS NOT EQUIPPED WITH CARBURETOR HEAT.

## Aircraft

- Registration: [N369AF](https://openairdocs.org/deregistered/N369AF-2011-09-27), registration cancelled 2011-09-27, S/N 369, built 1988 (OpenAirDocs)
- Reported make and model: AVID FLYER INC. AVID FLYER
- Registry model: [Tomash Leonard James AVID FLYER](https://openairdocs.org/model/tomash-leonard-james-avid-flyer) (registry code 05612WP) (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: 369
- Engines: ROTAX 232LG 65 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Rory Michael Neilson
- Airworthiness certificate: Special, Experimental (Special)
- Departed: OMRO, WI
- Destination: 98WI, WESTFIELD, WI

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 42; private; airplane ratings: single-engine land; medical: class 3, expired; seat: left; flight hours: 7,846 total, 66 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Visibility: 10 statute miles
- Temperature: 81 °F, dew point 48 °F
- Observed at: MSN, 40 nm away

## 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 19910607020449A](https://openairdocs.org/incident/19910607020449A), Jun 7, 1991: Amtr AVIDFLYER, Endeavor, WI, Substantial damage. Elected to land on road due high EGT temp and rough engine. Struck a tree. No defects founld. Unable to verify EGT.

## Other investigations on N369AF (1)

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.

- [NTSB CHI02CA267](https://openairdocs.org/ntsb/CHI02CA267), Aug 31, 2002: Tomash Avid Flyer (N369AF), Camp Lake, WI, substantial damage. Probable cause: The total failure of the engine ignition system, and the unsuitable terrain encountered during the forced landing. The low altitude was a contributing factor.

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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