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Last updated: 5 March 2021
Statuts:Enquête Officielle
Date:vendredi 3 juillet 1970
Heure:19:05
Type/Sous-type:Silhouette image of generic COMT model; specific model in this crash may look slightly different
de Havilland DH-106 Comet 4
Compagnie:Dan-Air Services
Immatriculation: G-APDN
Numéro de série: 6415
Année de Fabrication: 1959-09-29 (10 years 9 months)
Heures de vol:25786
Moteurs: 4 Rolls-Royce Avon 524
Equipage:victimes: 7 / à bord: 7
Passagers:victimes: 105 / à bord: 105
Total:victimes: 112 / à bord: 112
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:Sierra del Montseny (   Espagne)
Élévation des lieux de l'accident: 1158 m (3799 feet) amsl
Phase de vol: En vol (ENR)
Nature:Charter International
Aéroport de départ:Manchester International Airport (MAN/EGCC), Royaume Uni
Aéroport de destination:Barcelona-El Prat Airport (BCN/LEBL), Espagne
Numéro de vol:DA1903
Détails:
Comet G-APDN departed Manchester at 16:08 for a charter flight to Barcelona. ATC delays in the Paris area resulted in a different route to be flown. At 17:53 the pilot contacted Barcelona ACC. The aircraft was then cleared to descend from FL220 to FL90. At 17:59 the flight switched to Barcelona Approach. Barcelona Approach cleared the crew direct to the Sabadell beacon and cleared them to descend to FL60. While carrying out a left turn to a heading of 140deg, as instructed by Barcelona Approach, the crew mistakenly reported passing the Sabadell NDB. At that time another aircraft overflew Sabadell, causing the error to go unnoticed by the controller. The controller then cleared the Comet to descend to 2800 feet. At approx. 18:05 UTC the aircraft struck beech trees on the north-east slopes of the cloud-covered Les Angudes peak at an altitude of about 3800 feet and crashed.

Probable Cause:

PROBABLE CAUSE: "To sum up, it can be deduced that the combination of erroneous information regarding reporting points, together with the existence of a radar echo over Sabadell NDB (coinciding with the report from the aircraft of passing that reporting point), led both the aircraft and APP to believe, erroneously, that the aircraft was already over Sabadell; this was an involuntary error (on both sides: ATC and aircraft) which was physically impossible to correct when Air Traffic Control realised it."

Accident investigation:
cover
Investigating agency: AIB
Status: Investigation completed
Duration: 1 year and 3 months
Accident number: AAR 1/1972
Download report: Final report

Sources:
» Flight International 09 July 1970 (39)


Photos

photo of DH-106-Comet-4-
photo of de-Havilland-DH-106-Comet-4-G-APDN
accident date: 03-07-1970
type: de Havilland DH-106 Comet 4
registration: G-APDN
 

Plan
Ce plan montre l'aéroport de départ ainsi que la supposée destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre Manchester International Airport et Barcelona-El Prat Airport est de 1369 km (856 miles).
Accident location: Exact; as reported in the official accident report.

Les informations ci-dessus ne représentent pas l'opinion de la 'Flight Safety Foundation' ou de 'Aviation Safety Network' sur les causes de l'accident. Ces informations prélimimaires sont basées sur les faits tel qu'ils sont connus à ce jour.
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DH-106 Comet

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