5 fatalities

Training Flight Crash at Whitehaven Due to Structural Failure (R9780)

Whitehaven, United KingdomFlight

On October 14, 1943, an Avro 652 Anson (registration R9780) operated by Royal Air Force - RAF was involved in an aviation accident near Whitehaven, United Kingdom in flight. 5 people were killed. Investigators recorded the probable cause as: An inherent, undetectable structural defect caused the airframe to fail in 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 2026-08-05Data APIEditorial standards

A military training aircraft crashed near Whitehaven after suffering a sudden structural failure, resulting in the loss of all five crew members on board.

What happened

The incident occurred during a routine training flight that departed from RAF Millom in Cumberland. As the aircraft proceeded northward toward Whitehaven, located approximately thirty miles away, it experienced a catastrophic mechanical issue. The plane suffered a sudden structural failure while airborne, which led to an immediate loss of control and a subsequent crash. All five aircrew members aboard the aircraft were killed in the accident.

Findings

Investigations into the crash revealed that the root cause was an inherent defect within the aircraft's structure. This specific flaw was determined to be undetectable through standard pre-flight inspections or maintenance procedures prior to the incident. In response to this discovery, authorities grounded all similar aircraft models temporarily. Reinforcement work was carried out on the fleet to address the structural weakness and prevent any recurrence of such a failure.

Probable cause

An inherent, undetectable structural defect caused the airframe to fail in flight.