Accident
Last updated: 27 August 2014
Status:Schlussbericht
Datum:Samstag 2 Mai 1953
Zeit:ca 16:35
Flugzeugtyp:de Havilland DH-106 Comet 1
Fluggesellschaft:British Overseas Airways Corporation - BOAC
Kennzeichen: G-ALYV
Werknummer: 06008
Baujahr: 1952
Betriebsstunden:1649
Triebwerk: 4 de Havilland Ghost 50 Mark I
Besatzung:Todesopfer: 6 / Insassen: 6
Fluggäste:Todesopfer: 37 / Insassen: 37
Gesamt:Todesopfer: 43 / Insassen: 43
Sachschaden: Zerstört
Konsequenzen: Written off (damaged beyond repair)
Unfallort:32 km (20 Meilen) NW of Calcutta-Dum Dum Airport (CCU) (   Indien) show on map
Flugphase: Während des Fluges (ENR)
Betriebsart:Internationaler Linienflug
Flug von:Calcutta-Dum Dum Airport (CCU/VECC), Indien
Flug nach:Delhi-Safdarjung Airport (VIDD), Indien
Flugnummer:783/057
Unfallbericht:
A de Havilland DH-106 Comet 1 passenger plane, operated by BOAC, was destroyed in an accident near Calcutta, India. All 43 on board were killed.
The airplane operated on a return flight from London, UK to Singapore.
On its return leg from Singapore it landed at Calcutta-Dum Dum Airport at 15:10 hrs local time. Intermediate stops were made at Bangkok and Rangoon before arriving at Calcutta.
The flight took off from runway 19L at 15:29 and was cleared to climb under Visual Flight Rules and report when passing 7500 feet. The aircraft encountered a severe squall with thunderstorm shortly after take-off when climbing to its cruising altitude, and suffered structural failure in the air which caused fire. The pilots lost control and the Comet crashed.


PROBABLE CAUSE: "Structural failure of the airframe during flight through a thunder squall. In the opinion of the Court, the structural failure was due to overstressing which resulted from either:- (1) Severe gusts encountered in the thunder squall, or (2) Overcontrolling or loss of control by the pilot when flying through the thunderstorm."

Informationsquelle:
» CIVIL AIRCRAFT ACCIDENT Report of the Court Investigation on the Accident to COMET G-ALYV on 2nd May, 1953


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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 Calcutta-Dum Dum Airport to Delhi-Safdarjung Airport as the crow flies is 1297 km (811 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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DH-106 Comet

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