LAX87LA178

NTSB accident investigation · Bell 206B · Laupahoehoe, HI · April 15, 1987

Accident · FatalLimited investigationFinal report
Date
April 15, 1987, 13:12 local (23:12 UTC)
Place
Laupahoehoe, HI
Injuries
1 fatal, 1 serious, 2 uninjured
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N370AHBell 206B
Weather
Visual (VMC) · Day
Status
Completed · report June 16, 1989
Report
Approved by Office Director
Case key
25565

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of control - in flightHover
In-flight planning/decision - inadequatePilot in commandCause
Proper altitude - not maintainedPilot in commandCause
Terrain condition - water,roughFactor
In flight collision with terrain/waterDescent - uncontrolled
DitchingLanding
Procedures/directives - not followedPilot in commandFactor
Emergency equipment - inadequate

Analysis

The pilot of the bell 206B and his three passengers arrived over a beached barge that they were to land on. The pilot hovered over the barge in a left quartering tailwind of about 10 knots and over a moderate sea with waves breaking against the barge. The two rear seat passengers were deplaned without incident through the right rear door as the helicopter hovered with the right skid resting on a structure on the barge. Afterward, one of the deplaned passengers observed a wave break against the barge and water spraying upward onto the helicopter. Both deplaned passengers observed the helicopter roll left and impact the water. There was no evidence that flotation gear was available to the crew or passengers.

Aircraft

Registration
N370AH
Reported as
Bell 206B
Category
Helicopter
Serial number
1314
Airframe hours
7,241
Engine
Allison 250-C20, 317 horsepower, turbo shaft
Damage
Destroyed
Flight
Part 135
Operator
Hilo Bay Air, Inc.
Registered owner
Alaska Helicopters, Inc.
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · April 7, 1987 · 88 hours before
Departed
ITO · Hilo, HI
Flight plan
Company VFR

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
38
Certificates
Airline transport, Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Helicopter
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Right
Flight hours
6,160 total · 1,400 in this make and model · 5,980 as pilot in command · 241 in the last 90 days · 6 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
360° at 10 knots
Visibility
10 statute miles
Lowest ceiling
1,600 ft broken
Temperature
72 °F, dew point 68 °F
Altimeter
30.00 inHg
Observed at
ITO, 19 nm away