# NTSB CHI82FA234: Goans G-5, N59CG, Kankakee, IL, July 4, 1982

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Field investigation · Final report
- Date: July 4, 1982, 11:50 local (16:50 UTC)
- Place: Kankakee, IL
- Location: 41.1017° N, 87.8637° W: Placed by OpenAirDocs: center of Kankakee, IL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.1017&lon=-87.8637&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed, report July 4, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 71221
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI82FA234
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/71221/pdf
- Page: https://openairdocs.org/ntsb/CHI82FA234

## Sequence of events

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

- Loss of control - in flight, approach - vfr pattern - downwind
  - rotorcraft flight controls - improper use of, pilot in command (cause)
  - throttle/power control - improper use of, pilot in command (cause)
- Airframe/component/system failure/malfunction, approach - vfr pattern - downwind
  - flight control,rudder - failure,total
  - flight control,rudder - separation
  - vertical stabilizer surface - separation
  - vertical stabilizer surface - separation
  - propeller system/accessories,blade - failure,total
  - propeller system/accessories,blade - separation
  - aircraft handling - not possible, pilot in command
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

THE PILOT WAS MAKING HIS FIRST FLIGHT SINCE A SPECIAL AIRWORTHINESS CERTIFICATE WAS ISSUED. THIS AIRCRAFT WAS UNIQUE IN THAT THE ROTOR CONTROLS WERE CABLE INSTEAD OF PUSH-PULL RODS. THE AIRCRAFT AFTER TAKEOFF STARTED PITCHING UP AND DOWN. THIS PITCHING CONTINUED ON DOWNWIND LEG. THE RUDDER, VETTICAL STABILIZER AND TIPS OF THE WOODEN PROPELLER BEGAN SEPARATING WHEN THE ROTOR ASSEMBLY CONTACTED THE PROPELLER. THE AIRCRAFT NOSED OVER AND TUMBLED TO GROUND.

## Aircraft

- Registration: [N59CG](https://openairdocs.org/deregistered/N59CG-1984-10-31), registration cancelled 1984-10-31, S/N 12931 (OpenAirDocs)
- Reported make and model: GOANS G-5
- Registry model: [Bensen B-8M](https://openairdocs.org/model/bensen-b-8m) (registry code 1300516) (OpenAirDocs)
- Category: Helicopter, amateur-built
- Serial number: 12931
- Airframe hours: 32
- Engines: HAROLD GULDI VW2100C 65 horsepower reciprocating
- Damage: Destroyed
- Flight: Part 91
- Operator: Charles E. Goans
- Registered owner: Charles E. Goans
- Departed: KANKAKEE, IL
- Destination: KANKAKEE, IL
- Airport: runway 9, 2,500 × 75 ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 51; student; medical: class 3, invalid medical for flight; flight hours: 131 total, 111 in this make and model, 114 as pilot in command, 20 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 70° at 8 knots
- Visibility: 4 statute miles
- Temperature: 181 °F
- Altimeter: 29.00 inHg
- Observed at: MDW, 50 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 19820704032889A](https://openairdocs.org/incident/19820704032889A), Jul 4, 1982: Amtrbx BENSENB8M, Kankakee, IL, Destroyed. Gyroplane began porpoising on first flight. Unloaded rotors struck the propeller. Autogyro dived to the ground.

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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