Date: | Wednesday 7 November 1956 |
Time: | 09:50 |
Type: | de Havilland DH-114 Heron 2B |
Owner/operator: | Braathens SAFE |
Registration: | LN-SUR |
MSN: | 14093 |
Year of manufacture: | 1956 |
Fatalities: | Fatalities: 2 / Occupants: 12 |
Aircraft damage: | Destroyed, written off |
Category: | Accident |
Location: | Hummelfjell Mountain -
Norway
|
Phase: | En route |
Nature: | Passenger - Scheduled |
Departure airport: | Trondheim-Værnes Airport (TRD/ENVA) |
Destination airport: | Oslo-Fornebu Airport (FBU/ENFB) |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:de Havilland DH-114 Heron LN-SUR, named 'Lars', took off from Trondheim at 08:30 for a domestic flight to Oslo. The flight climbed to a cruising altitude of 8000 feet, reaching Tolga radio beacon at 09:12. Light icing was experienced, which increased rapidly. The Heron started to lose altitude despite of the full use of the de-icing system. The captain elected to return to Trondheim. At 09:50 the aircraft struck Hommelfjell mountain at a height of about 1350 m, bounced in the snow and settled. Parts of the aircraft were used to rebuild Heron LN-NPI, which was damaged on January 26, 1957.
PROBABLE CAUSE: "Unusually heavy icing which the aircraft encountered. Severe downdraft immediately prior to the crash may have been a contributing factor."
Sources:
ICAO Accident Digest No.9, Circular 56-AN/51 (10-14)
Location
Images:
photo (c) Anno Musea i Nord-Østerdalen; Hummelfjell Mountain; November 1956; (publicdomain)
photo (c) Anno Musea i Nord-Østerdalen; Hummelfjell Mountain; November 1956; (publicdomain)
photo (c) Anno Musea i Nord-Østerdalen; Hummelfjell Mountain; November 1956; (publicdomain)
Revision history:
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