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NTSB Report
October 29, 1989 · De Havilland DHC-6-300 · N707PV
Halawa,Molokai, HI
Overview
Report Status
Probable Cause
Event Type
Accident
Date
October 29, 1989
Injury Outcomes
20 injuries (20 fatalities)
Location
Halawa,Molokai, HI
Aircraft
De Havilland DHC-6-300
Tail Number
N707PV
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
DCA90MA005
DE HAVILLAND DHC-6, N707PV (ALOHA ISLANDAIR FLT 1712), COLLIDED WITH MOUNTAINOUS/HILLY TERRAIN NEAR HALAWA BAY, HI, WHILE EN ROUTE ON A SCHEDULED PASSENGER FLT AT NIGHT FROM MAUI TO MOLOKAI, HI. IMPACT OCCURRED AT AN ELEVATION OF ABOUT 500 FT, SHORTLY AFTER THE ACFT HAD DESCENDED OVER WATER, THEN CROSSED THE SHORELINE. THERE WAS EVIDENCE THAT THE CAPTAIN HAD MADE A NAVIGATIONAL ERROR & MISTAKENLY BELIEVED THAT HE WAS CIRCUMNAVIGATING THE NORTHERN PORTION OF MOKOKAI ISLAND. THE ACFT CRASHED WHILE ON A HEADING THAT WAS PARALLEL WITH THE ISLAND'S NORTHERN SHORELINE. LOW CLOUDS OBSCURED THE MTN TOPS IN THE AREA OF THE ACDNT. THERE WAS ALSO EVIDENCE OF INADEQUATE SUPERVISION OF PSNL, TRAINING & OPNS BY ALOHA ISLANDAIR MANAGEMENT & INSUFFICIENT OVERSIGHT OF ALOHA ISLANDAIR BY THE FAA DURING A PERIOD OF ALOHA ISLANDAIR'S RAPID OPNL EXPANSION.
NTSB Probable Cause
THE AIRPLANE'S CONTROLLED FLIGHT INTO TERRAIN AS A RESULT OF THE DECISION OF THE CAPTAIN TO CONTINUE FLIGHT UNDER VISUAL FLIGHT RULES AT NIGHT INTO INSTRUMENT METEOROLOGICAL CONDITIONS (IMC), WHICH OBSCURED RISING MOUNTAINOUS TERRAIN. CONTRIBUTING TO THE ACCIDENT WAS: THE INADEQUATE SUPERVISION OF PERSONNEL, TRAINING, AND OPERATIONS BY ALOHA ISLANDAIR MANAGEMENT AND INSUFFICIENT OVERSIGHT OF ALOHA ISLANDAIR BY THE FEDERAL AVIATION ADMINISTRATION PARTICULARILY DURING A PERIOD OF RAPID OPERATIONAL EXPANSION. (REF: NTSB/AAR-90/05)
Full Narrative
DE HAVILLAND DHC-6, N707PV (ALOHA ISLANDAIR FLT 1712), COLLIDED WITH MOUNTAINOUS/HILLY TERRAIN NEAR HALAWA BAY, HI, WHILE EN ROUTE ON A SCHEDULED PASSENGER FLT AT NIGHT FROM MAUI TO MOLOKAI, HI. IMPACT OCCURRED AT AN ELEVATION OF ABOUT 500 FT, SHORTLY AFTER THE ACFT HAD DESCENDED OVER WATER, THEN CROSSED THE SHORELINE. THERE WAS EVIDENCE THAT THE CAPTAIN HAD MADE A NAVIGATIONAL ERROR & MISTAKENLY BELIEVED THAT HE WAS CIRCUMNAVIGATING THE NORTHERN PORTION OF MOKOKAI ISLAND. THE ACFT CRASHED WHILE ON A HEADING THAT WAS PARALLEL WITH THE ISLAND'S NORTHERN SHORELINE. LOW CLOUDS OBSCURED THE MTN TOPS IN THE AREA OF THE ACDNT. THERE WAS ALSO EVIDENCE OF INADEQUATE SUPERVISION OF PSNL, TRAINING & OPNS BY ALOHA ISLANDAIR MANAGEMENT & INSUFFICIENT OVERSIGHT OF ALOHA ISLANDAIR BY THE FAA DURING A PERIOD OF ALOHA ISLANDAIR'S RAPID OPNL EXPANSION.
Flight
Event TypeAccident
Event Time18:37 HST
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledCvfr
Aircraft FireGrd
Aircraft ExplosionNo
Aircraft
AircraftDe Havilland DHC-6-300
Tail NumberN707PV
Aircraft CategoryAir
DamageDestroyed
Operating RulePart 135
Engines2
Engine TypeTurboprop
Engine DetailsP&W · PT6A-27 · Turboprop · 620
Seats21
People & Injuries
Injury Summary20 injuries (20 fatalities)
Fatal20
Serious0
Minor0
Uninjured0
Total20
Crew 1Age 30 · First Class
Conditions
ConditionsIMC
LightDark Night
Wind50° @ 11 kt
CeilingNone
Temperature / Dew Point70 F
Altimeter29.00 inHg
Weather SourceWIT