35 fatalities

1954 Comet Structural Failure Over the Tyrrhenian Sea (G-ALYP)

Elbe Island, ItalyFlight

On January 10, 1954, a De Havilland DH.106 Comet (registration G-ALYP) operated by British Overseas Airways Corporation - BOAC was involved in an aviation accident near Elbe Island, Italy in flight. 35 people were killed. Investigators recorded the probable cause as: Structural failure of the pressure cabin brought about by fatigue. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A); 3 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
Aircraft registered G-ALYP
Aircraft registered G-ALYP. Photo: Andy Mabbett / CC BY-SA 3.0, via Wikimedia Commons

A Comet aircraft suffered a catastrophic decompression and structural failure over the Tyrrhenian Sea, killing all 35 occupants. The investigation attributed the crash to pressure cabin fatigue.

Incident Overview and Immediate Aftermath Approximately twenty minutes after departing Rome-Ciampino Airport, the aircraft was cruising at 27,000 feet between the islands of Elbe and Montecristo when it experienced a severe decompression. The aircraft subsequently disappeared from radar and crashed into the Tyrrhenian Sea. All 35 people on board were killed. Debris was located floating roughly 16 kilometers south of Elbe Island, while the main wreckage came to rest at a depth of 600 meters. Approximately 70% of the debris was recovered, and the aircraft was reconstructed in the United Kingdom for investigative purposes. Due to concerns regarding technical issues, BOAC, Air France, and SAA suspended all Comet flights. Following fifty modifications and improvements, the aircraft type resumed operations two months later. The investigation ultimately determined that the aircraft suffered a structural failure and exploded in flight.

Probable cause

Structural failure of the pressure cabin brought about by fatigue.