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Last updated: 19 January 2022
Datum:Samstag 28 Oktober 1989
Zeit:18:37 HST
Flugzeugtyp:Silhouette image of generic DHC6 model; specific model in this crash may look slightly different
de Havilland Canada DHC-6 Twin Otter 300
Fluggesellschaft:Aloha IslandAir
Kennzeichen: N707PV
Werknummer: 400
Baujahr: 1973
Anzahl Zyklen der Zelle:30139
Triebwerk: 2 Pratt & Whitney Canada PT6A-27
Besatzung:Todesopfer: 2 / Insassen: 2
Fluggäste:Todesopfer: 18 / Insassen: 18
Gesamt:Todesopfer: 20 / Insassen: 20
Sachschaden: Zerstört
Konsequenzen: Written off (damaged beyond repair)
Unfallort:nahe Hoolehua-Molokai Airport, HI (MKK) (   USA)
Flugphase: Annäherung (APR)
Betriebsart:Inländischer planmäßiger Passagierflug
Flug von:Kahului Airport, HI (OGG/PHOG), USA
Flug nach:Molokai/Kaunakakai Airport, HI (MKK/PHMK), USA
Aloha IslandAir Flight 1712 departed Kahului at 18:25 for a 25-minute VFR flight to Kaunakakai. The aircraft climbed to 1000 feet and descended to 500 feet at 18:30. The plane struck a 27deg rocky slope on the north-eastern slopes of the coastal mountains on the island of Molokai at around 600 feet.

Probable Cause:

PROBABLE CAUSE: "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. Also contributing to the accident was the insufficient oversight during a period of rapid operational expansion and corporate growth."
Board member Jim Burnett filed the following dissenting statement on the Probable Cause: "I would add to the statement of probable cause the following additional language: Also contributing to the accident was the failure of the Federal Aviation Administration to require a Ground Proximity Warning System for Part 135 aircraft."

Accident investigation:
Investigating agency: NTSB
Status: Investigation completed
Duration: 11 months
Accident number: NTSB/AAR-90-05
Download report: Final report

» NTSB/AAR-90/05


NTSB issued 11 Safety Recommendations

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photo of DHC-6-Twin-Otter-300-N707PV

This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Kahului Airport, HI to Molokai/Kaunakakai Airport, HI as the crow flies is 74 km (46 miles).
Accident location: Approximate; accuracy within a few kilometers.

This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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DHC-6 Twin Otter

  • 930+ built
  • 146th loss
  • 97th Fataler Unfall
  • 6th worst accident (Zu diesem Zeitpunkt)
  • 11th worst accident (Momentan)
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