Incident Overview
Date: Friday 27 September 1991
Aircraft Type: de Havilland Canada DHC-6 Twin Otter 300
Owner/operator: Solomon Islands Airlines
Registration Number: H4-SIA
Location: S of Guadalcanal –
ÿ Solomon Islands
Phase of Flight: En route
Status: Destroyed, written off
Casualties: Fatalities: 15 / Occupants: 15
Component Affected: The Twin Otter aircraft itself.The Twin Otter aircraft itself.
Category: Accident

A Twin Otter aircraft struck Mount Nashua at a high altitude during heavy rain and low cloud conditions. The aircraft was descending from 8000 feet when it struck the southern face of the mountain.A Twin Otter aircraft struck Mount Nashua at a high altitude during heavy rain and low cloud conditions. The aircraft was descending from 8000 feet when it struck the southern face of the mountain.
Description
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.
Primary Cause
Heavy rain and low cloud conditions likely contributed to the low visibility and reduced maneuverability, increasing the risk of a collision.Heavy rain and low cloud conditions likely contributed to the low visibility and reduced maneuverability, increasing the risk of a collision.Share on: