ASN logo
Last updated: 26 March 2019
Date:Tuesday 31 July 1979
Type:Silhouette image of generic A748 model; specific model in this crash may look slightly different
Avro 748-105 Srs. 1
Operator:Dan-Air Services
Registration: G-BEKF
C/n / msn: 1542
First flight: 1962
Total airframe hrs:29007
Engines: 2 Rolls-Royce Dart 514
Crew:Fatalities: 2 / Occupants: 3
Passengers:Fatalities: 15 / Occupants: 44
Total:Fatalities: 17 / Occupants: 47
Aircraft damage: Damaged beyond repair
Location:Shetland Islands-Sumburgh Airport (LSI) (   United Kingdom)
Phase: Takeoff (TOF)
Nature:Domestic Non Scheduled Passenger
Departure airport:Sumburgh Airport, Shetland Islands (LSI/EGPB), United Kingdom
Destination airport:Aberdeen-Dyce Airport (ABZ/EGPD), United Kingdom
The HS-748 failed to become airborne and crashed into the sea 50 m offshore. The takeoff runway (09-27) had a length of 3555 feet.

Probable Cause:

PROBABLE CAUSE: "It was concluded that the accident was caused by the locked condition of the elevators which prevented the rotation of the aircraft into a flying attitude. It is likely that the elevator gust-lock became re-engaged during the pilot's pre-take-off check, and that this condition was not apparent to either pilot until the take-off was so far advanced that a successful abandonment within the overrun area could not be reasonably have been made. The re-engagement of the gust-lock was made possible by the condition of the gust-lock lever gate plate and gate-stop strip."

Accident investigation:
Investigating agency: AIB
Status: Investigation completed
Accident number: AAR 1/1981
Download report: Final report

Locked rudders/ailerons/gustlock
Runway excursion

» Flight International 25 July 1981 (216-217)

Follow-up / safety actions
All British HS-748 planes were fitted with a light on the gust-lock lever to warn the pilots if the lever is not properly in the controls-free detent. Also, Dan-Air redesigned the lifejacket stowage.


photo of Hawker Siddeley HS-748-105 Srs. 1 G-BEKF
G-BEKF was bought from YPF Argentina and is being prepared for Dan-Air at Lasham.
Add your photo of this accident or aircraft

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 Sumburgh Airport, Shetland Islands to Aberdeen-Dyce Airport as the crow flies is 300 km (187 miles).
Accident location: Exact; deduced from official accident report.

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.
languages: languages



  • ca 337 built
  • 30th loss
  • 14th fatal accident
  • 9th worst accident (at the time)
  • 16th worst accident (currently)
» safety profile

 United Kingdom
  • 31st worst accident (at the time)
  • 34th worst accident (currently)
» safety profile