# NTSB CHI85LA254: Bell 47G-4, N3094G, Lakeville, MN, June 26, 1985

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: June 26, 1985, 13:57 local (18:57 UTC)
- Place: Lakeville, MN
- Coordinates: 44.670124, -93.239227 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=44.6701&lon=-93.2392&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): 13111
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI85LA254
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/13111/pdf
- Page: https://openairdocs.org/ntsb/CHI85LA254

## Sequence of events

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

- Roll over, landing - flare/touchdown
  - object - vehicle
  - proper alignment - misjudged, pilot in command (cause)

## Analysis

THE ACFT WAS BEING LANDED ON A TRAILER FOR TRANSPORTATION. UPON TOUCHDOWN THE RIGHT SKID HOOKED ON THE LANDING GUIDES AND THE HELICOPTER ROLLED TO THE RIGHT SIDE. THE MAIN ROTOR BLADES STRUCK THE GROUND, THE LEFT FUEL TANK RUPTURED AND AN EXPLOSION AND FIRE ENSUED.

## Aircraft

- Registration: [N3094G](https://openairdocs.org/aircraft/N3094G), registered now, S/N 3361, built 1965 (OpenAirDocs)
- Reported make and model: BELL 47G-4
- Registry model: [Bell 47G-4](https://openairdocs.org/model/bell-47g-4) (registry code 1181030) (OpenAirDocs)
- Registry engine: [Allison 250 series](https://openairdocs.org/engine/allison-250-series) (registry code 03014, turbo-prop) (OpenAirDocs)
- Category: Helicopter
- Serial number: 3361
- Airframe hours: 7487
- Engines: LYCOMING VO-540-B1B3 260 horsepower reciprocating
- Damage: Substantial damage
- Fire: On-Ground
- Flight: Personal, Part 91
- Operator: Steve D. Neiderhauser
- Registered owner: Edward R. Colmer
- Airworthiness certificate: Special, Restricted (Special); Standard, Normal
- Last inspection: 100 hour, March 28, 1985, 114 hours before
- Airport: Y12, Airlake

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 21; commercial, flight instructor; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: left; flight hours: 1,853 total, 25 in this make and model, 1,725 as pilot in command, 140 in the last 90 days, 65 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 280° at 6 knots
- Visibility: 20 statute miles
- Lowest ceiling: 1,800 ft broken
- Temperature: 75 °F, dew point 66 °F
- Altimeter: 29.00 inHg
- Observed at: MSP, 150 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 19850626028029A](https://openairdocs.org/incident/19850626028029A), Jun 26, 1985: Bell 47G4, Lakeville, MN, Destroyed. Right skid hooked on landing guides during attempt to land on a trailer. Aircraft rolled over and caught on fire.

## Other investigations on N3094G (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 NYC67A0018](https://openairdocs.org/ntsb/NYC67A0018), Jul 26, 1966: Bell 47G-4 (N3094G), Savannah, NY, 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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