# NTSB SEA86LA030: Bell 47G-3B, N73208, Kimberly, ID, December 12, 1985

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Limited investigation · Final report
- Date: December 12, 1985, 16:15 local (23:15 UTC)
- Place: Kimberly, ID
- Coordinates: 42.449604, -114.259147 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=42.4496&lon=-114.2591&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious, 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 40339
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA86LA030
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/40339/pdf
- Page: https://openairdocs.org/ntsb/SEA86LA030

## Analysis

A FORCED LANDING WITH A ROLLOVER ONTO SNOW OCCURRED DUE TO THE NUMBER 3 CYLINDER ROD FAILING.

## Sequence of events

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

- Loss of engine power(total) - mech failure/malf, cruise
  - engine assembly,connecting rod - failure,total (cause)
- Roll over, landing
  - airport facilities,runway/landing area condition - snow covered (contributing factor)
  - airport facilities,runway/landing area condition - rough/uneven (contributing factor)

## Aircraft

- Registration: N73208 (not matched to a registry record)
- Reported make and model: BELL 47G-3B
- Category: Helicopter
- Serial number: 2745
- Airframe hours: 3900
- Engines: LYCOMING TV0-435 SER 270 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Peter Link
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, March 22, 1985, 90 hours before
- Departed: NONE, KIMBERLY, ID
- Destination: SHOHONE BASIN, ID

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 46; commercial, airline transport; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: left; flight hours: 2,551 total, 737 in this make and model, 50 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 10 statute miles
- Lowest ceiling: 3,000 ft overcast
- Temperature: 3 °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 19851212061739A](https://openairdocs.org/incident/19851212061739A), Dec 12, 1985: Bell 47G3B, Kimberly, ID, Substantial damage. Forced landing as engine failed after takeoff. Skid struck snowbank causing rollover. Connecting rod bearing failed

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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