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Accident description
Last updated: 12 December 2017
Status:Final
Date:Thursday 25 October 1979
Time:15:20
Type:Silhouette image of generic VISC model; specific model in this crash may look slightly different
Vickers 735 Viscount
Operator:Alidair
Registration: G-BFYZ
C/n / msn: 69
First flight: 1955
Total airframe hrs:25641
Cycles:16275
Crew:Fatalities: 0 / Occupants: 4
Passengers:Fatalities: 0 / Occupants: 47
Total:Fatalities: 0 / Occupants: 51
Airplane damage: Damaged beyond repair
Location:Kirkwall Airport (KOI) (   United Kingdom)
Phase: Landing (LDG)
Nature:Domestic Non Scheduled Passenger
Departure airport:Glasgow-Abbotsinch Airport (GLA/EGPF), United Kingdom
Destination airport:Kirkwall Airport (KOI/EGPA), United Kingdom
Narrative:
The Viscount had carried out a runway 25 VOR approach in poor weather with gusting cross-wind when the pilot wanted to correct the misalignment with the runway at a low height. The no. 4 propeller struck the runway on touchdown and the aircraft ran off the right side of the runway. The nosegear collapsed when encountering the edge of an intersecting runway.

Probable Cause:

CAUSE: "The accident was caused by the commander failing to take overshoot action at an early stage in the approach to land when it became apparent that the approach was unstabilised and the windscreen wiper was unreliable ."

Accident investigation:
cover
Investigating agency: AIB
Status: Investigation completed
Accident number: AAR 4/1981
Download report: Final report

Classification:
Turbulence

Runway excursion

Photos

photo of Vickers 735 Viscount G-BFYZ
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Map
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 Glasgow-Abbotsinch Airport to Kirkwall Airport as the crow flies is 352 km (220 miles).

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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