# NTSB CHI94DEV01: Hucke, Ronald L. PARSON-2P, N589RH, Monmouth, IL, July 5, 1994

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Final report
- Date: July 5, 1994, 18:00 local (23:00 UTC)
- Place: Monmouth, IL
- Coordinates: 40.910255, -90.639038 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=40.9103&lon=-90.6390&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report February 14, 1995
- Report: Approved by Office Director
- NTSB case key (mKey): 9352
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI94DEV01
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/9352/pdf
- Page: https://openairdocs.org/ntsb/CHI94DEV01

## Probable cause

THE PILOT'S FAILURE TO MAINTAIN FLYING SPEED WHICH RESULTED IN A STALL/MUSH.

## Analysis

THE PILOT REPORTED THAT AFTER REACHING AN ALTITUDE OF 100 FEET HE TURNED RIGHT TO AVOID GOING OVER HIGHWAY I-34 AND THE CITY OF MONMOUTH, IL.  THE AIRCRAFT BEGAN LOSING ALTITUDE, WITH NO POWER LOSS.  HE FOUND A CLEAR AREA ALONG THE RUNWAY.  UPON LANDING, THE RIGHT WHEEL STRUCK A HOLE CAUSING THE AIRCRAFT TO SHAKE VIOLENTLY.  THE AIRCRAFT CAME TO REST ON ITS RIGHT SIDE, SUSTAINING SUBSTANTIAL DAMAGE.

## Factual narrative

On July 5, 1994 at 1800 central daylight time, an experimental Parson-2P gyroplane, N589RH, was substantially damaged during landing at Monmouth Airport, Monmouth, IL.  The private pilot sustained minor injuries.  Visual meteorological conditions existed at the time of the accident.  The local flight, conducted under 14 CFR Part 91, originated 5 minutes prior as part of the 40 hour flight test period.

The pilot reported that after reaching an altitude of 100 feet he turned right to avoid going over highway I-34 and the city of Monmouth, IL.  The aircraft began losing altitude, with no power loss.  He found a clear area along the runway.  Upon landing, the right wheel struck a hole causing the aircraft to shake violently.  The aircraft came to rest on its right side, sustaining substantial damage.  According to the pilot logbook, he had a total of 28.3 hours flight time in gyroplanes, and was first endorsed for solo flight on July 22, 1993.  He stated that this was his first flight since December 1993.

The aircraft sustained substantial damage. No fire or explosion occurred. The right main wheel, engine propeller, main rotor blades, center line keel and main rotor head support brace were damaged.

The pilot holds a private pilot certificate, airplane single engine land ratings with a student pilot endorsement for gyrocopter.

## Sequence of events

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

- Loss of control - in flight, takeoff - initial climb
  - airspeed - not maintained, pilot in command (cause)
  - stall/mush - inadvertent, pilot in command
- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - rough/uneven

## Aircraft

- Registration: [N589RH](https://openairdocs.org/deregistered/N589RH-1995-04-26), registration cancelled 1995-04-26, S/N RH61469 (OpenAirDocs)
- Reported make and model: HUCKE, RONALD L. PARSON-2P
- Registry model: [Hucke Ronald L PARSON 2P](https://openairdocs.org/model/hucke-ronald-l-parson-2p) (registry code 13027KG) (OpenAirDocs)
- Category: Gyroplane, amateur-built
- Serial number: RH6146-9
- Airframe hours: 14
- Engines: SUBARU EA-82 100 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Ronald L. Hucke
- Airworthiness certificate: Special, Experimental (Special)
- Last inspection: Annual, July 4, 1994, 12 hours before
- Airport: C66, Monmouth Municpal, runway 2, 2,900 × 60 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 47; private; airplane ratings: single-engine land; medical: class 3, unknown; seat: front; flight hours: 119 total, 13 in this make and model, 62 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: 190° at 6 knots
- Visibility: 7 statute miles
- Lowest ceiling: none
- Temperature: 86 °F, dew point 75 °F
- Altimeter: 29.00 inHg
- Observed at: BRL, 25 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 19940705017659A](https://openairdocs.org/incident/19940705017659A), Jul 5, 1994: Amtr PARSONS2, Monmouth, IL, Substantial damage. Made turn at low altitude. Gyrocopter lost altitude. Struck hole landing. Causing roll onto right side.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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