# NTSB SEA86LA079: Bell 47G-3B-1, N3067G, Overton, NV, March 17, 1986

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Limited investigation · Final report
- Date: March 16, 1986, 18:00 local (Mar 17, 1986, 02:00 UTC)
- Place: Overton, NV
- Coordinates: 36.389713, -114.370567 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=36.3897&lon=-114.3706&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious, 1 minor
- Status: Completed, report March 25, 1988
- Report: Approved by Office Director
- NTSB case key (mKey): 40369
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA86LA079
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/40369/pdf
- Page: https://openairdocs.org/ntsb/SEA86LA079

## Sequence of events

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

- In flight collision with object, cruise
  - planning/decision - improper, pilot in command (cause)
  - impairment(alcohol), pilot in command (contributing factor)
  - qualification, pilot in command
  - light condition - dark night (contributing factor)
  - visual/aural detection, pilot in command (contributing factor)
  - object - wire,transmission (contributing factor)
  - proper altitude - not attained, pilot in command (cause)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

THE NONCERTIFICATED PLT RPRTD THAT HE HAD REPAIRED THE HELICOPTER, THEN PROCEEDED TO MAKE A LOCAL TEST FLT. HE RPRTD THAT HE TOOK OFF IN DARKNESS AFTER HAVING A FEW BEERS. THE PLT CHOSE TO TURN OFF THE LANDING LIGHT SHORTLY AFTER TAKEOFF. WHILE AT LOW ALTITUDE NEAR THE ARPT, THE HELICOPTER STRUCK POWER LINES, THEN DSCNDD & HIT THE GROUND. THE PLT HELD A STUDENT PLT CERTIFICATE WHICH HAD EXPIRED.

## Aircraft

- Registration: [N3067G](https://openairdocs.org/deregistered/N3067G-2013-08-08), registration cancelled 2013-08-08, S/N 2915, built 1964 (OpenAirDocs)
- Reported make and model: BELL 47G-3B-1
- Registry model: [Bell 47G-3B-1](https://openairdocs.org/model/bell-47g-3b-1) (registry code 1181028) (OpenAirDocs)
- Registry engine: [Lycoming 0-435](https://openairdocs.org/engine/lycoming-0-435) (registry code 41516, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Serial number: 2915
- Airframe hours: 5600
- Engines: LYCOMING TVO-435-B1A 270 horsepower reciprocating
- Damage: Substantial damage
- Flight: Part 91
- Registered owner: James L. Clark
- Airworthiness certificate: Standard, Normal
- Departed: U08, OVERTON, NV
- Airport: U08, Overton Muni

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 34; student; medical: class 3, expired; seat: left; flight hours: 115 total, 115 in this make and model, 115 as pilot in command

## Weather

- Conditions: Visual (VMC), Night/dark
- Wind: calm
- Visibility: 50 statute miles
- Lowest ceiling: none
- Temperature: 64 °F

## Other investigations on N3067G (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 DEN75AD003](https://openairdocs.org/ntsb/DEN75AD003-134417), Jul 24, 1974: Bell 47G3B1 (N3067G), Grand Valley, CO, 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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