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Accident description
Last updated: 20 September 2017
Status:Final
Date:Tuesday 15 August 1967
Time:11:48
Type:Silhouette image of generic A748 model; specific model in this crash may look slightly different
Hawker Siddeley HS-748-222 Srs. 2
Operator:Channel Airways
Registration: G-ATEK
C/n / msn: 1588
First flight: 1966-02-10 (1 year 6 months)
Total airframe hrs:2651
Engines: 2 Rolls-Royce Dart 531
Crew:Fatalities: 0 / Occupants: 4
Passengers:Fatalities: 0 / Occupants: 19
Total:Fatalities: 0 / Occupants: 23
Airplane damage: Substantial
Airplane fate: Repaired
Location:Portsmouth Airport (PME) (   United Kingdom)
Phase: Landing (LDG)
Nature:Domestic Scheduled Passenger
Departure airport:Southend Municipal Airport (SEN/EGMC), United Kingdom
Destination airport:Gosport-Fleetlands Heliport (EGVF), United Kingdom
Narrative:
The HS.748 aircraft was operating a scheduled flight from Southend to Paris via Portsmouth. It broke cloud using RAY Thorney Island GCA and made a circling approach to Portsmouth Airport. A normal touchdown was made about 330 ft to the left of the centre-line of grass strip 36 . During the landing run propeller ground fine pitch was selected followed by continuous application of the wheel brakes. At first the aircraft decelerated normally but at an advanced stage of the landing roll it became apparent that the aircraft might not stop in the distance remaining. An attempt was made to swing the aircraft to the left but, after starting to turn, it slid sideways and came to rest on an earth embankment. The aircraft was extensively damaged but there was no fire, or injury to the crew or passengers.

Probable Cause:

CAUSE: "The primary cause was the inadequate braking which resulted from the extremely low coefficient of friction provided by the very wet grass over the hard, dry and almost impermeable sub-soil of the aerodrome.
The fact that no account had been taken of the extra landing distance necessary for HS 748 aircraft on wet grass must be considered as a contributory cause since had this been applied Channel Airways HS 748 operation at Portsmouth would not have taken place.

Accident investigation:
cover
Investigating agency: AIB
Status: Investigation completed
Duration: 3 years and 3 months
Accident number: AAR 1/1971
Download report: Final report


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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 Southend Municipal Airport to Gosport-Fleetlands Heliport as the crow flies is 146 km (91 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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