ASN Aircraft accident de Havilland Canada DHC-6 Twin Otter 300 H4-SIA Guadalcanal
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Date:Friday 27 September 1991
Type:Silhouette image of generic DHC6 model; specific model in this crash may look slightly different
de Havilland Canada DHC-6 Twin Otter 300
Operator:Solomon Islands Airlines
Registration: H4-SIA
MSN: 271
First flight: 1969
Engines: 2 Pratt & Whitney Canada PT6A-27
Crew:Fatalities: 2 / Occupants: 2
Passengers:Fatalities: 13 / Occupants: 13
Total:Fatalities: 15 / Occupants: 15
Aircraft damage: Damaged beyond repair
Location:S of Guadalcanal (   Solomon Islands)
Phase: En route (ENR)
Nature:Domestic Scheduled Passenger
Departure airport:Kirakira Airport (IRA/AGGK), Solomon Islands
Destination airport:Honiara-Henderson International Airport (HIR/AGGH), Solomon Islands
The Twin Otter struck the southern face of Mount Nashua at 4110 feet altitude in heavy rain and low cloud. The aircraft was making a visual descent from 8000 feet.

Controlled Flight Into Terrain (CFIT) - Mountain

» Air International
» Scramble Vol.13, nr.05


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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 Kirakira Airport to Honiara-Henderson International Airport as the crow flies is 231 km (144 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
  • 162nd loss
  • 106th fatal accident
  • 18th worst accident (at the time)
  • 35th worst accident (currently)
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 Solomon Islands
  • 4th worst accident
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