# NTSB CHI82DA303: Enstrom F-28, N81HF, Waynesville, OH, August 11, 1982

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: August 11, 1982, 18:00 local (22:00 UTC)
- Place: Waynesville, OH
- Location: 39.5319° N, 84.0909° W: Placed by OpenAirDocs: center of Waynesville, OH, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.5319&lon=-84.0909&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report August 11, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 72982
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI82DA303
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/72982/pdf
- Page: https://openairdocs.org/ntsb/CHI82DA303

## Sequence of events

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

- Loss of engine power(partial) - mech failure/malf, maneuvering - aerial application
  - rotor drive system - vibration
  - reason for occurrence undetermined (contributing factor)
- Forced landing, landing - flare/touchdown
- Hard landing, landing - flare/touchdown
  - flare - improper, pilot in command (cause)
  - rotor system,main rotor blade - engaged
  - rotor system,tail rotor hub - separation

## Analysis

THE PILOT STATED THAT DURING A SPRAYING OPERATION HE FELT A VIBRATION IN THE AIRCRAFT. HE ATTEMPTED A PRECAUTIONARY LANDING WITH REDUCED POWER, AVOIDING FURTHER STRESS ON THE ROTOR SYSTEM. DURING THE LANDING THE SKIDS DUG INTO THE SOYBEANS AND THE MAIN ROTOR CUT INTO THE TAIL BOOM.

## Aircraft

- Registration: N81HF (not matched to a registry record)
- Reported make and model: ENSTROM F-28
- Category: Helicopter
- Serial number: 513
- Airframe hours: 527
- Engines: LYCOMING HIO-360 180 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Operator: Hilty Farms, Inc.
- Registered owner: Hilty Farms, Inc.
- Departed: WAYNESVILLE, OH
- Destination: WAYNESVILLE, OH

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 30; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; flight hours: 541 total, 300 in this make and model, 461 as pilot in command, 220 in the last 90 days, 8 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Temperature: 176 °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 19820811036749A](https://openairdocs.org/incident/19820811036749A), Aug 11, 1982: Enstrm F28F, Waynesville, OH, Substantial damage. Pilot felt vibration on procedure turn around. Attempted precautionary landing. Skids caught in soy beans. .

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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