# NTSB ATL86FEI07: Bell 47G2, N984B, Lisbon, OH, June 26, 1986

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Final report
- Date: June 25, 1986, 20:35 local (Jun 26, 1986, 00:35 UTC)
- Place: Lisbon, OH
- Coordinates: 40.770278, -80.759559 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=40.7703&lon=-80.7596&mi=10
- Phase of flight: [Standing](https://openairdocs.org/ntsb-phases/150) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal, 1 uninjured; on the ground: 1 fatal
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 6976
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ATL86FEI07
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/6976/pdf
- Page: https://openairdocs.org/ntsb/ATL86FEI07

## Sequence of events

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

- Propeller/rotor contact to person, standing - idling rotors
  - object - other person
  - visual lookout - not maintained, ground personnel (cause)

## Analysis

THE AERIAL APPLICATION HELICOPTER WAS BEING SERVICED BY A CHEMICAL TRUCK THAT WAS PARKED ADJACENT TO THE ACFT. THE ACFT ENGINE WAS AT HIGH IDLE WITH THE MAIN ROTOR TURNING AT 250 RPM. THE GROUND CREWMAN JUMPED OFF THE SIDE OF THE CHEMICAL TRUCK INTO THE MAIN ROTOR ARC, AND SUSTAINED FATAL INJURIES. HE HAD REPORTEDLY BOARDED THE TRUCK FROM THE REAR.

## Aircraft

- Registration: [N984B](https://openairdocs.org/aircraft/N984B), registered now, S/N 1382, built 1955 (OpenAirDocs)
- Reported make and model: BELL 47G2
- Registry model: [Bell 47G-2](https://openairdocs.org/model/bell-47g-2) (registry code 1181008) (OpenAirDocs)
- Registry engine: [Franklin 6V4 series](https://openairdocs.org/engine/franklin-6v4-series) (registry code 27033, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Serial number: N984B
- Airframe hours: 7776
- Engines: LYCOMING VO-435-A1F 200 horsepower reciprocating
- Damage: Minor damage
- Flight: Aerial application, Part 137
- Registered owner: John W. Albrecht
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: 100 hour, May 2, 1986, 73 hours before

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 39; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; seat: left; flight hours: 6,280 total, 5,950 in this make and model, 6,000 as pilot in command, 107 in the last 90 days, 52 in the last 30 days, 5 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 30° at 5 knots
- Visibility: 25 statute miles
- Lowest ceiling: none
- Temperature: 59 °F, dew point 54 °F
- Altimeter: 30.00 inHg
- Observed at: YNG, 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 19860625027829A](https://openairdocs.org/incident/19860625027829A), Jun 25, 1986: Bell 47G, Lisbon, OH, Minor damage, 1 fatal. Ground crewman jumped off a chemical truck into the path of the turning rotor blades.

## Other investigations on N984B (3)

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 ATL87DEI05](https://openairdocs.org/ntsb/ATL87DEI05), Jun 14, 1987: Bell 47G-2 (N984B), Lisbon, OH, substantial damage
- [NTSB SEA76DYG01](https://openairdocs.org/ntsb/SEA76DYG01), Jul 1, 1975: Bell 47G-2 (N984B), Moses Lake, WA, destroyed
- [NTSB SEA74DYE42](https://openairdocs.org/ntsb/SEA74DYE42), Apr 18, 1974: Bell 47G-2 (N984B), Centralia, WA, substantial damage

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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