Aircraft Accident/Incident Report

Kaunakakai, Hawaii 96748
Wednesday, January 31, 2007 15:40 HST

NTSB Narrative Summary Released at Completion of Accident

The airplane encountered severe turbulence during an en route descent and a captain who was deadheading was not secured in his seat and received serious injuries. The airplane was being positioned to another airport, and had a deadheading flight crew on board. Prior to the descent, the captain noted an airspeed anomaly for the existing power setting. He also observed that the flap indicator showed a "slight" deployment of the flaps. He requested that the deadheading captain look out a cabin window, and verify the flap position. The deadheading captain reported to the flying captain that the flaps were in the fully retracted position. About this time, ATC personnel requested that a descent be initiated, which the flight crew initiated by reducing the power to slow down the airplane. As the deadheading captain was making his way back to his cabin seat, the airplane encountered severe turbulence, which lasted about 5 to 10 seconds. He was thrown about the cabin and injured. The flying captain declared an emergency. The flight landed without incident, and taxied to the gate where the injured crewmember was transported to the hospital. A review was conducted of the ATC air-ground recordings between Maui approach control (APCON), two other airplanes flying in the area, and the accident airplane (Moku 979). Prior to Moku 979 checking in with Maui approach, the two other airplanes reported moderate turbulence at 4,000 feet, and moderate to occasional severe turbulence between 2,000 and 2,500 feet. Both airplanes were about 15 miles east of Maui, in the general vicinity of the accident airplane. The controller contacted FSS, and advised them of the PIREP's. About 75 seconds later, Moku 979 reported in to the approach control. The controller told them to "expect lower in 5 miles." The controller did not advise Moku 979 of the reported turbulence in the area. Ninety-five seconds later the controller instructed Moku 979 to begin a descent to 1,500 feet. Fifteen seconds later Moku 979 declared an emergency and reported the injury.

NTSB Probable Cause Narrative

an in-flight encounter with clear air turbulence, which resulted in a serious injury to a deadheading crewmember.

Event Information

Type of Event Accident
Event Date 1/31/2007
Event Day of the Week Wednesday
Time of Event 1540
Event Time Zone Hawaii Standard Time
Event City Kaunakakai
Event State HAWAII
Event Country --
Zipcode of the event site 96748
Event Date Year 2007
Event Date Month 1
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 210901N
Event Location Longitude 1570548W
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 --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1400 Hawaii Standard Time
Direction of event from weather observation facility (degrees) 71
Weather Observation Facility ID PHMK
Elevation of weather observation facility 454
Distance of event from weather observation facility (units?) 30
Time Zone of the weather observation HST
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 1700
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 27
Dew Point at event time (in degress fahrenheit) 21
Wind Direction (degrees magnetic) 190
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 23
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 34
Altimeter Setting at event time (in. Hg) 29.76
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 5
Injury Total Serious 1
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 21320
NTSB Notification Source FAA
NTSB Notification Date Jan 31 2007 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Apr 25 2007 2:54PM
User who most recently changed record NTSB\lema
Basic weather conditions Visual Meteorological Cond
FAA District Office WP-FSDO- Honolulu

Aircraft Involved

Aircraft #1

Aircraft Registration Number N979HA
NTSB Number LAX07CA077
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed IFR
Flight plan Was Activated? Yes
Damage None
Aircraft Fire None
Aircraft Explosion --
Aircraft Manufacturer's Full Name Bombardier, Inc.
Aircraft Model DHC-8-103
Aircraft Series Identifier --
Aircraft Serial Number 373
Certified Max Gross Weight 35200
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 41
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Continuous Airworthiness
Date of Last Inspection Dec 1 2006 12:00AM
Airframe hours since last inspection --
Airframe Hours 28080
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Wells Fargo Bank Northwest
Aircraft Owner Street Address --
Aircraft Owner City --
Aircraft Owner State --
Aircraft Owner Country --
Aircraft Owner Zipcode --
Operator is an individual? No
Operator Name Hawaii Island Air
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 99 Kapalulu Place
Operator City Honolulu
Operator State HI
Operator Country USA
Operator Zip code 96819
Operator Code KPVA
Owner has at least one certificate --
Other Operator of large aircraft? --
Certified for Part 133 or 137 Operation --
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) Positioning
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code HNL
Departure City HONOLULU
Departure State HI
Departure Country USA
Departure Time --
Departure Time Zone --
Destination Same as Local Flt --
Destination Airport Code OGG
Destination City KAHULUI
Destination State HI
Destination Country USA
Specific Phase of Flight Descent - normal
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Mar 5 2007 3:18PM
User who most recently changed record COOS
Since inspection or accident Time of Accident
Event Location Runway Number and Location NA
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --