Incident Overview

Date: Tuesday 11 July 1972
Aircraft Type: de Havilland Canada DHC-6 Twin Otter 100
Owner/operator: Royal Norwegian Air Force – RNoAF
Registration Number: 67-056
Location: 15 km NNW of Harstad – ÿ Norway
Phase of Flight: En route
Status: Destroyed, written off
Casualties: Fatalities: 17 / Occupants: 17
Component Affected: DHC-6 Twin Otter 100 transport planeDHC-6 Twin Otter 100 transport plane
Category: Accident
Narrative
A DHC-6 Twin Otter 100 transport plane crashed near Harstad, Norway, resulting in the deaths of all 14 passengers and three crew members. The aircraft was en route from Bardufoss (BDU) to Bod? (BOO) via Skagen (SKN) and was instructed to deviate from its planned route due to bad weather. The pilot, who was fatigued following a party the previous night, initiated the deviation. The plane struck Lille Tussen Mountain, approximately 20 meters below the summit, on Gryt?ya Island. The aircraft drifted significantly, requiring it to deviate from a westward course, which contributed to the incident.A DHC-6 Twin Otter 100 transport plane crashed near Harstad, Norway, resulting in the deaths of all 14 passengers and three crew members. The aircraft was en route from Bardufoss (BDU) to Bod? (BOO) via Skagen (SKN) and was instructed to deviate from its planned route due to bad weather. The pilot, who was fatigued following a party the previous night, initiated the deviation. The plane struck Lille Tussen Mountain, approximately 20 meters below the summit, on Gryt?ya Island. The aircraft drifted significantly, requiring it to deviate from a westward course, which contributed to the incident.

Description

A de Havilland Canada DHC-6 Twin Otter 100 transport plane, operated by the Royal Norwegian Air Force, was destroyed when it crashed near Harstad, Norway. All 14 passengers and three crew members were killed. The airplane operated on a flight from Bardufoss (BDU) to Bod? (BOO) via Skagen (SKN). At Bardufoss the pilot was advised to cut out Skagen because of bad weather, and instead continue directly to Bod?. However, the pilot decided to head to Skagen, taking off at 15:18. At 15:43 the airplane struck Lille Tussen Mountain (800 m) on Gryt?ya Island, some 20 metres below the summit. The plane had drifted somewhat to the north and should have passed over the south-east end of the island on a west/south westerly course. It appeared that the pilot had insufficient rest following a party the night before. Also, the blood alcohol concentration was 1-1,5 permille.

Primary Cause

Insufficient rest following a party the previous night.Insufficient rest following a party the previous night.

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