Flugunfall 14 MAR 1957 einer Vickers 701 Viscount G-ALWE

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Status:	Accident investigation report completed and information captured
Datum:	Donnerstag 14 M�rz 1957
Zeit:	13:46
Flugzeugtyp:	Vickers 701 Viscount
Fluggesellschaft:	British European Airways - BEA
Kennzeichen:	G-ALWE
Werknummer:	4
Baujahr:	1952
Betriebsstunden:	6902
Anzahl Zyklen der Zelle:	4553
Besatzung:	Todesopfer: 5 / Insassen: 5
Fluggäste:	Todesopfer: 15 / Insassen: 15
Gesamt:	Todesopfer: 20 / Insassen: 20
Opfer am Boden:	Todesopfer: 2
Sachschaden:	Zerstört
Konsequenzen:	Written off (damaged beyond repair)
Unfallort:	Wythenshawe ( Großbritannien)
Flugphase:	Annäherung (APR)
Betriebsart:	Internationaler Linienflug
Flug von:	Amsterdam-Schiphol International Airport (AMS/EHAM), Niederlande
Flug nach:	Manchester-Ringway Airport (MAN/EGCC), Großbritannien
Flugnummer:	411

Unfallbericht:
Viscount G-ALWE (the first Viscount 701 type to be manufactured) approached Manchester-Ringway Airport following a flight from Amsterdam. After a GCA (Ground Control Approach) approach, the aircraft broke through the lowest clouds and the crew continued the approach visually. The approach was uneventful until it was about 1 mile short of the runway. The aircraft was seen to enter a shallow right descending turn with a steepening bank angle. The right wingtip touched the ground and the aircraft crashed into houses 85 yards further on. It appeared that the aileron became locked when the no. 2 flap unit of the starboard wing moved away from the trailing edge member following failure of a lug and bolt of the flap fitting.

Probable Cause:

PROBABLE CAUSE: "The fracture, due to fatigue, of he 9/16 inch bolt holding the bottom of the No2 starboard flap unit."

Informationsquelle:

» ICAO Accident Digest No.9, Circular 56-AN/51 (76-87)

Sicherheitsempfehlungen

AIB issued 3 Safety Recommendations

Show all...

Fotos

accident date: 14-03-1957
type: Vickers 701 Viscount
registration: G-ALWE

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 Amsterdam-Schiphol International Airport to Manchester-Ringway Airport as the crow flies is 483 km (302 miles).
Accident location: Approximate; accuracy within a few kilometers.

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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Vickers Viscount

445 built
7^th loss
3^rd Fataler Unfall
The worst accident (Zu diesem Zeitpunkt)
33^rd worst accident (Momentan)

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Großbritannien

14^th worst accident (Zu diesem Zeitpunkt)
27^th worst accident (Momentan)

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Issued: --	To:	G-ALWE (1)
It is recommended that reliance on a single bolt in tension for the support of a primary structure should be avoided if possible.
Issued: --	To:	G-ALWE (2)
It is recommended that that where such bolts are used an ample margin of strength should be allowed (having regard to the material of which the bolt is made) so as to ensure that fatigue will not develop at any time in the life of the bolt.
Issued: --	To:	G-ALWE (3)
It is recommended that that where such bolts are used the seating of the bolt and nut should be carefully checked.