5 fatalities

Training aircraft mistakenly shot down off Viareggio (MM22022)

Viareggio, ItalyFlight

On April 18, 1943, a Savoia-Marchetti SM.79 Sparviero (registration MM22022) operated by Regia Aeronautica was involved in an aviation accident near Viareggio, Italy in flight. 5 people were killed. Investigators recorded the probable cause as: Mistakenly shot down by friendly fire from a cargo ship crew. 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)Source recordUpdated 2026-08-05Data APIEditorial standards

A three-engine training aircraft was accidentally hit by fire from a German cargo ship while cruising near Viareggio, resulting in the loss of all five crew members.

What happened

The incident involved a three-engine aircraft operating out of Pisa Airport. The crew was conducting a routine training sortie when the accident occurred. While cruising in the vicinity of Viareggio, the aircraft came under fire from the crew of a German cargo ship named 'Nicoline Maersk'. The vessel's personnel mistakenly identified the friendly aircraft as a hostile target and engaged it. Struck by the gunfire, the plane lost control and crashed into the sea. All five members of the crew perished in the accident. Recovery efforts were limited, with some debris from the wreckage eventually located in 1984.

Findings

The official investigation concluded that the loss was due to a friendly fire incident. The primary contributing factor was the mistaken identification of the training aircraft by the personnel aboard the cargo ship, leading to the accidental discharge of weapons against a non-hostile target.

Probable cause

Mistakenly shot down by friendly fire from a cargo ship crew.