Accident
Last updated: 20 September 2014
Status:
Datum:maandag 26 mei 1952
Type:Handley Page HP.81 Hermes IV
Luchtvaartmaatschappij:British Overseas Airways Corporation - BOAC
Registratie: G-ALDN
Constructienummer: HP.81/15
Bouwjaar: 1950
Bemanning:slachtoffers: 1 / inzittenden: 8
Passagiers:slachtoffers: 0 / inzittenden: 10
Totaal:slachtoffers: 1 / inzittenden: 18
Schade: Afgeschreven
Gevolgen: Written off (damaged beyond repair)
Plaats:114 km (71.3 mijl) SSE of Atar (   MauritaniŰ) show on map
Fase: Kruisvlucht (ENR)
Soort vlucht:Internationale lijnvlucht
Vliegveld van vertrek:Tripoli International Airport (TIP/HLLT), LibiŰ
Vliegveld van aankomst:Kano International Airport (KAN/DNKN), Nigeria
Beschrijving:
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: "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."

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


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Kaart
Deze kaart geeft het vliegveld van vetrek weer en de geplande bestemming van de vlucht. De lijn tussen de vliegvelden geeft niet de exacte vliegroute weer.
De afstand tussen Tripoli International Airport en Kano International Airport bedraagt 2325 km (1453 miles).

This information is not presented as the Flight Safety Foundation or the Aviation Safety Networkĺs 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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