No fatalities

Engine failure leads to water landing in River Thames (PH812)

Canvey Island, United KingdomFlight

On December 29, 1953, an Avro 652 Anson (registration PH812) operated by Royal Air Force - RAF was involved in an aviation accident near Canvey Island, United Kingdom in flight. No fatalities were reported. Investigators recorded the probable cause as: The aircraft suffered a complete loss of power due to the failure of both engines during flight. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A); 8 related events involving the same aircraft type or operator are linked below.

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary reportUpdated 2026-06-12Data APIEditorial standards

A crew was forced to ditch an aircraft into the Thames near Canvey Island, Essex, following a simultaneous loss of power in both engines.

What happened

During a flight near Canvey Island in Essex, the aircraft experienced a critical malfunction involving its propulsion system. A double engine failure occurred while the plane was in flight, leaving the crew without sufficient power to maintain altitude or continue the planned route.

In response to the loss of both engines, the crew executed an emergency procedure to ditch the aircraft into the River Thames. The landing took place in the waters off the Essex coast. Following the impact with the water, rescue operations were initiated. Both members of the crew were successfully recovered from the scene without fatal injuries. However, the aircraft itself was not recovered and is considered lost.

Findings

Official investigations into the incident concluded that the primary factor leading to the emergency landing was the simultaneous failure of both engines during the flight phase.

Probable cause

The aircraft suffered a complete loss of power due to the failure of both engines during flight.