# NTSB MKC84LA145: Pietenpol-Grega GN1, N46844, Warrensburg, MO, May 23, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: May 23, 1984, 18:30 local (23:30 UTC)
- Place: Warrensburg, MO
- Coordinates: 38.750202, -93.719329 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=38.7502&lon=-93.7193&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 33687
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC84LA145
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/33687/pdf
- Page: https://openairdocs.org/ntsb/MKC84LA145

## 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)
  - ground loop/swerve - inadvertent, pilot in command
  - lack of total experience in type of aircraft, pilot in command (contributing factor)
- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - ditch (contributing factor)
- Nose over, landing - roll

## Analysis

DURING A LANDING, THE ACFT RAN OFF THE SIDE OF THE RWY, HIT A SMALL DITCH & NOSED OVER.

## Aircraft

- Registration: [N46844](https://openairdocs.org/deregistered/N46844-2013-04-02), registration cancelled 2013-04-02, S/N 118, built 1978 (OpenAirDocs)
- Reported make and model: PIETENPOL-GREGA GN1
- Registry model: [Niquette PIETENPOL-GREGA](https://openairdocs.org/model/niquette-pietenpol-grega) (registry code 7040217) (OpenAirDocs)
- Registry engine: [Continental A&C65 series](https://openairdocs.org/engine/continental-a-c65-series) (registry code 17003, reciprocating) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: 118
- Airframe hours: 65
- Engines: CONTINENTAL A-65 65 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Richard M. Button
- Registered owner: Paul J. Niquette
- Airworthiness certificate: Special, Experimental (Special)
- Last inspection: Annual, May 5, 1984
- Airport: 9K4, Skyhaven, runway 31, 1,200 × 50 ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 41; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; flight hours: 192 total, 1 in this make and model, 183 as pilot in command, 12 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 75 °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 19840523019139A](https://openairdocs.org/incident/19840523019139A), May 23, 1984: Amtrpl AIRCAMPER, Warrensburg, MO, Substantial damage. Lost directional control after landing. Left the runway, struck a ditch and nosed over.

## Other investigations on N46844 (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 CHI97LA202](https://openairdocs.org/ntsb/CHI97LA202), Jul 5, 1997: Niquette Pietenpol GN-1 (N46844), Lake Village, IN, substantial damage. Probable cause: the pilot's inability to maintain sufficient airspeed and climb.

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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