Narrative: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.
|Date:||Saturday 28 October 1989|
de Havilland Canada DHC-6 Twin Otter 300
|C/n / msn:|| 400|
|First flight:|| 1973|
|Total airframe hrs:||19875|
|Engines:|| 2 Pratt & Whitney Canada PT6A-27|
|Crew:||Fatalities: 2 / Occupants: 2|
|Passengers:||Fatalities: 18 / Occupants: 18|
|Total:||Fatalities: 20 / Occupants: 20 |
|Airplane damage:|| Destroyed|
|Airplane fate:|| Written off (damaged beyond repair)|
|Location:||near Hoolehua-Molokai Airport, HI (MKK) (United States of America)
|Phase:|| Approach (APR)|
|Nature:||Domestic Scheduled Passenger|
|Departure airport:||Kahului Airport, HI (OGG/PHOG), United States of America|
|Destination airport:||Molokai/Kaunakakai Airport, HI (MKK/PHMK), United States of America|
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."
Official accident investigation report
Follow-up / safety actions
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).