# NTSB LAX86FA243: Bell 206B, N29906, Hanalei, HI, June 8, 1986

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Field investigation · Final report
- Date: June 7, 1986, 16:27 local (Jun 8, 1986, 02:27 UTC)
- Place: Hanalei, HI
- Coordinates: 22.199556, -159.499191 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=22.1996&lon=-159.4992&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 5 serious
- Status: Completed, report April 25, 1988
- Report: Approved by Office Director
- NTSB case key (mKey): 24918
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX86FA243
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/24918/pdf
- Page: https://openairdocs.org/ntsb/LAX86FA243

## Sequence of events

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

- Loss of engine power(total) - nonmechanical, takeoff - initial climb
  - reason for occurrence undetermined (cause)
- Forced landing, descent - emergency
  - autorotation - attempted, pilot in command (contributing factor)
  - terrain condition - downhill (contributing factor)
  - terrain condition - none suitable (contributing factor)
- Hard landing, descent - emergency

## Analysis

THE HELICOPTER HAD JUST DEPARTED RUNWAY 05. GROUND WITNESSES AND SEVERAL OCCUPANTS IN THE HELICOPTER REPORTED THAT WHEN IT WAS ABOUT 150 FT AGL IT SUSTAINED A TOTAL ENGINE POWER LOSS. THE PILOT IMMEDIATELY ENTERED INTO AN ABRUPT RIGHT TURN AUTOROTATION. THE AIRPORT IS LOCATED ON A PLATEAU AND THE SURROUNDING TERRAIN SLOPES DOWNWARD. THE HELICOPTER CRASHED ABOUT 100 YARDS EAST OF THE DEPARTURE END OF THE RUNWAY. POST-IMPACT EXAMINATION OF THE ENGINE DISCLOSED IT WAS NOT OPERATING AT IMPACT. THE ENGINE OPERATED NORMALLY WHEN TESTED DURING THE INVESTIGATION. THE AIRFRAME FUEL FILTER CONTAINED DISCOLORED FUEL AND SOME CONTAMINATES; THE FUEL DOWNSTREAM, HOWEVER, WAS FREE OF ANY DISCOLORATION AND/OR CONTAMINATES.

## Aircraft

- Registration: N29906 (not matched to a registry record)
- Reported make and model: BELL 206B
- Category: Helicopter
- Serial number: 1012
- Airframe hours: 5796
- Engines: ALLISON 250-C20 420 horsepower turbo shaft
- Damage: Destroyed
- Flight: Other work use, Part 91
- Operator: Papillon Helicopters
- Registered owner: North American Helicopter Serv
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, May 26, 1986, 28 hours before
- Departed: HPV, HANALEI, HI
- Airport: HPV, Princeville, runway 5, 3,400 × 40 ft, dirt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 47; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--w/ waivers/lim; seat: right; flight hours: 7,682 total, 2,005 in this make and model, 6,182 as pilot in command, 328 in the last 90 days, 110 in the last 30 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 60° at 20 knots, gusting 30
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 81 °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 19860607086099A](https://openairdocs.org/incident/19860607086099A), Jun 7, 1986: Bell 206B, Hanalei, HI, Destroyed. Helicopter lost power during takeoff. Suspect pilot failed to check warning lights and was unaware of engine loss.

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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