Flugunfall 26 MAY 1952 einer Handley Page HP.81 Hermes IV G-ALDN - Atar
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Status:Accident investigation report completed and information captured
Datum:Montag 26 Mai 1952
Flugzeugtyp:Silhouette image of generic hphm model; specific model in this crash may look slightly different
Handley Page HP.81 Hermes IV
Fluggesellschaft:British Overseas Airways Corporation - BOAC
Kennzeichen: G-ALDN
Werknummer: HP.81/15
Baujahr: 1950
Besatzung:Todesopfer: 1 / Insassen: 8
Fluggäste:Todesopfer: 0 / Insassen: 10
Gesamt:Todesopfer: 1 / Insassen: 18
Sachschaden: Zerstört
Konsequenzen: Written off (damaged beyond repair)
Unfallort:114 km (71.3 Meilen) SSE of Atar (   Mauretanien)
Flugphase: Während des Fluges (ENR)
Betriebsart:Internationaler Linienflug
Flug von:Tripoli International Airport (TIP/HLLT), Libyen
Flug nach:Kano International Airport (KAN/DNKN), Nigeria
Unfallbericht:
The Hermes was on a flight to Kano when the crew lost its way over the desert area. Close to fuel exhaustion, a forced wheels-up landing was carried out in the desert. The left wing broke off during the ground slide. The first officer died 5 days later due to exhaustion, brought about by strain and heat.

Probable Cause:

PROBABLE CAUSE: "1) Faulty use by the navigator of the variation setting control on the CL2 Gyrosyn compass. 2) Faulty checking of compasses by incorrect astral bearing and without the aid of radio bearing. 3) Incorrect inference drawn by the captain in pronouncing the CL2 Gyrosyn compass correct and the P.12 magnetic compass unserviceable. 4) Fault on the part of the captain in not returning to Tripoli when the P.12 compass was regarded as unserviceable (in breach of BOAC regulations). 5) Inability of the crew to realize that astro shots were being taken on the wrong stars. 6) Inability of the crew to determine the aircraft's position properly by the standard methods when the VSC setting error was discovered. 7) Lack of decisive action on the part of the captain once he knew he had lost his way. 8) Ignorance on the part of those on board, of the assistance which could have been afforded by Atar airfield."

Informationsquelle:
» ICAO Circular 38-AN/33 (79-85)


Fotos

photo of Handley-Page-HP-81-Hermes-IV-G-ALDN
accident date: 26-05-1952
type: Handley Page HP.81 Hermes IV
registration: G-ALDN
 

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 Tripoli International Airport to Kano International Airport as the crow flies is 2325 km (1453 miles).
Accident location: Global; accuracy within tens or hundreds of 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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