4 fatalities

Short Sunderland crash into the English Channel during reconnaissance exercise (K6249)

The Channel, WorldFlight

On March 27, 1940, an Avro 652 Anson (registration K6249) operated by Royal Air Force - RAF was involved in an aviation accident near The Channel, World in flight. 4 people were killed. Investigators recorded the probable cause as: Loss of control during a turn at low altitude. 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 2026-08-04Data APIEditorial standards

A Short Sunderland crashed into the sea off Sussex while conducting a navigation exercise at low altitude. The aircraft lost control during a turn, and no survivors were found despite search efforts by other crew members.

What happened

The incident occurred during a navigation reconnaissance exercise conducted on behalf of the School of General Reconnaissance, which was based at RAF Thorney Island in Sussex under the command of the 17th Group. The aircraft was operating over the English Channel alongside two other similar machines at an altitude of approximately 700 feet.

During the flight, the pilot initiated a turn when control of the aircraft was lost. The plane subsequently crashed into the sea. The two accompanying Short Sunderland aircraft circled the area for a period to search for wreckage or survivors, but no trace of the missing aircraft or its crew was located.

Findings

The source material does not provide specific technical findings or a formal investigation report regarding mechanical failure or environmental conditions. The event is recorded as a loss of control during a maneuver at low altitude, resulting in the immediate loss of the aircraft and all personnel on board.

Probable cause

Loss of control during a turn at low altitude