# NTSB CHI91DCA02: Manville Avid Flyer, N714J, Mexico, MO, August 13, 1991

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Final report
- Date: August 13, 1991, 09:00 local (14:00 UTC)
- Place: Mexico, MO
- Coordinates: 39.160427, -91.869422 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=39.1604&lon=-91.8694&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report February 8, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 14793
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI91DCA02
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/14793/pdf
- Page: https://openairdocs.org/ntsb/CHI91DCA02

## Probable cause

FAILURE OF THE PILOT TO MAINTAIN DIRECTIONAL CONTROL DURING A LANDING ROLL.  A FACTOR ASSOCIATED WITH THE ACCIDENT IS THE PILOT'S LACK OF FAMILIARITY WITH THE ACCIDENT AIRPLANE.

## Sequence of events

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

- Loss of control - on ground/water, landing - roll
  - directional control - not maintained, pilot in command (cause)
  - lack of familiarity with aircraft, pilot in command (contributing factor)
- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - soft

## Analysis

THE ACCIDENT AIRPLANE WAS SUBSTANTIALLY DAMAGED WHEN IT WENT OFF THE SIDE OF THE RUNWAY DURING A LANDING ROLL AND GROUND LOOPED IN SOFT TERRAIN. THE ACCIDENT OCCURRED DURING THE AIRPLANE'S INITIAL TEST FLIGHT.

## Aircraft

- Registration: [N714J](https://openairdocs.org/deregistered/N714J-1999-03-01), registration cancelled 1999-03-01, S/N 714 (OpenAirDocs)
- Reported make and model: MANVILLE AVID FLYER
- Registry model: [Manville George J AVID FLYER](https://openairdocs.org/model/manville-george-j-avid-flyer) (registry code 056164Y) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: 714
- Engines: ROTAX UNK reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: George Manville
- Registered owner: George Manville
- Airworthiness certificate: Special, Experimental (Special)
- Last inspection: Annual, January 2, 2000
- Departed: H41, MEXICO, MO
- Airport: H41, Mexico, runway 24, 5,500 × 100 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 54; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 300 total, 7 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 10 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 19910813033869A](https://openairdocs.org/incident/19910813033869A), Aug 13, 1991: Amtr AVIDFLYER, Mexico, MO, Substantial damage. Ground looped on first test flight on landing roll. Pilot blamed gear alignment.

## Other investigations on N714J (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 CHI93LA121](https://openairdocs.org/ntsb/CHI93LA121), Mar 28, 1993: Manville Avid Flyer (N714J), Lincoln, MO, substantial damage. Probable cause: The pilot's failure to maintain control of the airplane, and his operation of an airplane with known defects.

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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