On 6 June 1982, during the
Falklands War, the British Royal Navy Type 42 destroyer engaged and destroyed a British Army Gazelle helicopter,
serial number XX377, in a
friendly fire incident, killing all four occupants.
Cardiff, on the lookout for aircraft flying supplies to the Argentine forces occupying the
Falkland Islands, had misidentified the helicopter as an enemy
C-130 Hercules. Although the helicopter's loss was initially blamed on enemy action, a subsequent inquiry found
Cardiffs missiles to be the cause.