# NTSB ANC84LA122: Bell 206B, N7889S, Healy, AK, July 27, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 27, 1984, 12:35 local (20:35 UTC)
- Place: Healy, AK
- Coordinates: 63.68037, -150.029998 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=63.6804&lon=-150.0300&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 office: Alaska Regional Office
- NTSB case key (mKey): 4327
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC84LA122
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/4327/pdf
- Page: https://openairdocs.org/ntsb/ANC84LA122

## Sequence of events

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

- In flight collision with terrain/water, landing - flare/touchdown
  - unsuitable terrain or takeoff/landing/taxi area - selected, pilot in command (cause)
  - terrain condition - uphill (cause)
- Loss of control - on ground/water, landing - flare/touchdown
  - unsuitable terrain or takeoff/landing/taxi area - selected, pilot in command (contributing factor)
- Roll over, landing - flare/touchdown
  - directional control - not maintained, pilot in command

## Analysis

THE PLT WAS ATTEMPTING TO LAND THE HELICOPTER ON TERRAIN WHICH HAD A SLIGHT SLOPE. BEFORE THE AIRCRAFT WAS COMPLETELY ON THE GROUND THE PLT DECIDED TO MOVE THE ACFT & THE RIGHT SKID CAUGHT IN THE TUNDRA CAUSING THE ACFT TO ROLL OVER TO THE RIGHT.

## Aircraft

- Registration: [N7889S](https://openairdocs.org/deregistered/N7889S-1989-11-21), registration cancelled 1989-11-21, S/N 72 (OpenAirDocs)
- Reported make and model: BELL 206B
- Registry model: [Bell 206B](https://openairdocs.org/model/bell-206b) (registry code 1181511) (OpenAirDocs)
- Category: Helicopter
- Serial number: 72
- Airframe hours: 8473
- Engines: ALLISON 250-C20 317 horsepower turbo shaft
- Damage: Substantial damage
- Fire: On-Ground
- Flight: Positioning, Part 91
- Operator: Steve Smith, doing business as Ak Helicopters Inc
- Registered owner: Alaska Helicopter Inc.
- Airworthiness certificate: Standard, Utility
- Last inspection: 100 hour, February 13, 1984, 72 hours before
- Departed: DENALI, AK
- Flight plan: VFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 42; flight instructor, airline transport; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: front; flight hours: 6,900 total, 2,160 in this make and model, 2,140 as pilot in command, 35 in the last 90 days, 15 in the last 30 days, 4 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 5 statute miles
- Lowest ceiling: none
- Temperature: 61 °F, dew point 37 °F
- Altimeter: 30.00 inHg

## 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 19840727041019A](https://openairdocs.org/incident/19840727041019A), Jul 27, 1984: Bell 206B, Healy, AK, Substantial damage. Elected to move helicopter to another location before it was fully landed. A skid caught on the tundra. Rolled over

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.