# NTSB SEA84LA025: Bell 206-BIII, N49584, Kooskia, ID, December 2, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: December 2, 1983, 11:40 local (19:40 UTC)
- Place: Kooskia, ID
- Coordinates: 45.799934, -115.510284 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=45.7999&lon=-115.5103&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 39854
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA84LA025
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/39854/pdf
- Page: https://openairdocs.org/ntsb/SEA84LA025

## Sequence of events

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

- Miscellaneous/other, takeoff - initial climb
  - misc eqpt/furnishings,seat belt - improper (contributing factor)
  - preflight planning/preparation - inadequate, pilot in command (cause)
- Hard landing, landing - flare/touchdown
  - weather condition - whiteout (contributing factor)
  - flare - not possible, pilot in command (cause)
  - weather condition - snow (contributing factor)
- Roll over, landing - flare/touchdown

## Analysis

THE HELICOPTER LANDED HARD AND ROLLED OVER TO THE RIGHT. THE EVENTS STARTED WHEN THE PILOT HEARD THE END OF A SEAT BELT BANGING AGAINST THE OUTSIDE OF THE ACFT WHERE IT HAD BEEN CAUGHT IN THE DOOR. THE PILOT DECIDED TO LAND AND SECURE THE BELT. DURING LANDING THE DOWNWASH FROM THE ACFT BLEW UP SNOW AND THE PILOT LOST SIGHT OF THE GROUND. A HARD LANDING AND ROLLOVER RESULTED.

## Aircraft

- Registration: N49584 (not matched to a registry record)
- Reported make and model: BELL 206-BIII
- Category: Helicopter
- Serial number: 49584
- Airframe hours: 3152
- Engines: ALLISON 250-C-20 317 horsepower turbo shaft
- Damage: Substantial damage
- Flight: Part 135
- Operator: Valley Aviation
- Registered owner: Charles F. Frensdorf
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, March 9, 1983, 54 hours before
- Departed: S92, FISH LAKE, ID
- Destination: S68, ORIFINO, ID
- Flight plan: Company VFR
- Airport: S92, Fish Lake

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 43; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; seat: right; flight hours: 7,505 total, 3,600 in this make and model, 7,386 as pilot in command, 203 in the last 90 days, 4 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Visibility: 20 statute miles
- Temperature: 19 °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 19831202059849A](https://openairdocs.org/incident/19831202059849A), Dec 2, 1983: Bell 206B3, Kooskia, ID, Substantial damage. During landing blowing snow caused pilot to lose depth perception resulting in a hard landing.

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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