Aircraft Accident/Incident Report

Hilo, Hawaii 96720
Sunday, May 18, 1997 11:45 HST

NTSB Narrative Summary Released at Completion of Accident

The noninstrument-rated pilot filed a company visual flight plan for a ferry flight from Kona to Hilo, Hawaii, but obtained no preflight weather briefing. Meteorological conditions along the intended route of flight were variable from visual to instrument conditions. There was a 7,000 foot overcast overlaying the destination and the eastern portion of the route. A first officer for Hawaiian Airlines stated that he and the captain observed a helicopter 15 to 20 miles west of Hilo on top of an overcast and that the pilot appeared to be searching for a visual path through the clouds. The first officer stated that at that time, there were no holes in the clouds that he could see and that Hilo was under a solid overcast. The aircraft collided with mountainous terrain at 6,500 feet.

NTSB Probable Cause Narrative

the noninstrument-rated pilot flew into instrument conditions and failed to maintain adequate terrain clearance, while attempting to descend through an overcast. The adverse weather conditions and mountainous terrain were related factors.

Event Information

Type of Event Accident
Event Date 5/18/1997
Event Day of the Week Sunday
Time of Event 1145
Event Time Zone Hawaii Standard Time
Event City HILO
Event State HAWAII
Event Country --
Zipcode of the event site 96720
Event Date Year 1997
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport
Event Location Nearest Airport ID
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1200 Hawaii Standard Time
Direction of event from weather observation facility (degrees) 110
Weather Observation Facility ID ITO
Elevation of weather observation facility 38
Distance of event from weather observation facility (units?) 18
Time Zone of the weather observation HST
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Unknown
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 0
Air Temperature at event time (in degrees celsius) 26
Dew Point at event time (in degress fahrenheit) 19
Wind Direction (degrees magnetic) 40
Variable Wind Indicator Unknown
Wind Speed (knots) 5
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 8500
Intensity of Precipitation Moderate
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal 1
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 861
NTSB Notification Source --
NTSB Notification Date May 18 1997 12:00AM
NTSB Notification Time 2044
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 8 2000 12:17PM
User who most recently changed record dbo
Basic weather conditions Instrument Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N98AW
NTSB Number LAX97LA185
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed Company VFR
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name Bell
Aircraft Model 206B
Aircraft Series Identifier 206B
Aircraft Serial Number 3214
Certified Max Gross Weight 3200
Aircraft Category Helicopter
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 5
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection May 17 1997 12:00AM
Airframe hours since last inspection 4
Airframe Hours 14115
ELT Installed Yes
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name KENAI AIR HAWAII, INC.
Aircraft Owner Street Address P.O. BOX 4118
Aircraft Owner City KAILUA-KONA
Aircraft Owner State HI
Aircraft Owner Country
Aircraft Owner Zipcode 96745
Operator is an individual? --
Operator Name TETSURO E. SUGIYAMA
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address P.O. BOX 6014
Operator City KAHULUI
Operator State HI
Operator Country
Operator Zip code 96732
Operator Code DCBA
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Other Work Use
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code KOA
Departure City KONA
Departure State HI
Departure Country
Departure Time 1030
Departure Time Zone HST
Destination Same as Local Flt crash at destination city
Destination Airport Code ITO
Destination City
Destination State HI
Destination Country
Specific Phase of Flight Cruise
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:34AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --