
Détails:
The Bristol 170 aircraft was being operated by Manx Airlines on a flight from the Isle of Man to Manchester, United Kingdom. Prior to takeoff, in order to avoid delay, a clearance to fly at 1500 ft was offered and accepted. In the light of past experience the captain anticipated that he would be cleared to a higher altitude on crossing the English coast. Between Ronaldsway and the reporting point at Squire's Gate the flight was made below cloud practically all the way. Visibility was reasonably good. The captain went below to talk to the passengers for approximately a five minute period. During his absence the first officer set the radio compass on what he thought was Wigan Beacon, but, was in fact Oldham Beacon. The Oldham Beacon is a more powerful NDB with a morse recognition signal 'MYL'. Wigan NDB has a recognition signal 'MYK'. On his return to the cockpit the captain took over the piloting of the aircraft. He assumed that the radio compass was tuned in to Wigan.
Just prior to 09:38 hours the aircraft reported to Preston Control "abeam Blackpool at this time estimating Wigan at 43". At 09:39 the Preston controller radioed: "You are cleared to Wigan 1500 feet remaining contact. Call Manchester Zone for onward clearance."
At 09:44, one minute after it would have been over the Wigan NDB, the flight was in cloud and out of contact with the ground. Manchester Control the radioed, "Charlie Sierra will you make a right turn immediately on to a heading of two five zero. I have a faint paint on radar which indicates you're going over towards the hills." Shortly thereafter in the course of making the right turn as ordered, the aircraft crashed on the northeast slope of Winter Hill, at a height of approximately 1460 ft.
PROBABLE CAUSE: "The error of the first officer in tuning the radio compass on Oldham Beacon instead of on Wigan Beacon. A contributory cause was the failure of the captain to check that the radio compass was tuned on the correct beacon."
| Statuts: | Accident investigation report completed and information captured |
| Date: | jeudi 27 février 1958 |
| Heure: | 09:45 |
| Type/Sous-type: |  Bristol 170 Freighter 21E |
| Compagnie: | Manx Airlines |
| Immatriculation: | G-AICS |
| Numéro de série: | 12762 |
| Année de Fabrication: | |
| Equipage: | victimes: 0 / Ã bord: 3 |
| Passagers: | victimes: 35 / Ã bord: 39 |
| Total: | victimes: 35 / Ã bord: 42 |
| Dégats de l'appareil: | Détruit |
| Conséquences: | Written off (damaged beyond repair) |
| Lieu de l'accident: | Winter Hill ( Royaume Uni)
|
| Élévation des lieux de l'accident: | 445 m (1460 feet) amsl |
| Phase de vol: | En vol (ENR) |
| Nature: | Charter National |
| Aéroport de départ: | Isle of Man-Ronaldsway Airport (IOM/EGNS), Royaume Uni |
| Manchester International Airport (MAN/EGCC), Royaume Uni |
The Bristol 170 aircraft was being operated by Manx Airlines on a flight from the Isle of Man to Manchester, United Kingdom. Prior to takeoff, in order to avoid delay, a clearance to fly at 1500 ft was offered and accepted. In the light of past experience the captain anticipated that he would be cleared to a higher altitude on crossing the English coast. Between Ronaldsway and the reporting point at Squire's Gate the flight was made below cloud practically all the way. Visibility was reasonably good. The captain went below to talk to the passengers for approximately a five minute period. During his absence the first officer set the radio compass on what he thought was Wigan Beacon, but, was in fact Oldham Beacon. The Oldham Beacon is a more powerful NDB with a morse recognition signal 'MYL'. Wigan NDB has a recognition signal 'MYK'. On his return to the cockpit the captain took over the piloting of the aircraft. He assumed that the radio compass was tuned in to Wigan.
Just prior to 09:38 hours the aircraft reported to Preston Control "abeam Blackpool at this time estimating Wigan at 43". At 09:39 the Preston controller radioed: "You are cleared to Wigan 1500 feet remaining contact. Call Manchester Zone for onward clearance."
At 09:44, one minute after it would have been over the Wigan NDB, the flight was in cloud and out of contact with the ground. Manchester Control the radioed, "Charlie Sierra will you make a right turn immediately on to a heading of two five zero. I have a faint paint on radar which indicates you're going over towards the hills." Shortly thereafter in the course of making the right turn as ordered, the aircraft crashed on the northeast slope of Winter Hill, at a height of approximately 1460 ft.
Probable Cause:
PROBABLE CAUSE: "The error of the first officer in tuning the radio compass on Oldham Beacon instead of on Wigan Beacon. A contributory cause was the failure of the captain to check that the radio compass was tuned on the correct beacon."
Sources:
» ICAO Accident Digest, Circular 59-AN/54 (83-92)Photos
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 Isle of Man-Ronaldsway Airport et Manchester International Airport est de 173 km (108 miles).
Accident location: Approximate; accuracy within a few kilometers.
La distance entre Isle of Man-Ronaldsway Airport et Manchester International Airport est de 173 km (108 miles).
Accident location: Approximate; accuracy within a few kilometers.
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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Bristol 170
- 214 built
- 42ème loss
- 27ème accident fatal
- le accident 4ème le plus grave (à ce moment là )
- le accident 4ème le plus grave (en ce moment)
Royaume Uni- le accident 4ème le plus grave (à ce moment là )
- le accident 13ème le plus grave (en ce moment)
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