On this day, 22 March 1974, Scottish workers in the East Killbride Rolls Royce factory refused to work on engines from planes belonging to right-wing dictatorship of general Augusto Pinochet. They kept the refusal up for four years, leaving the engines outside to rust, before they went missing one night. Their story is told in the 2018 film, Nae Pasarán.
Pictured: The workers, with one of the engines https://www.facebook.com/workingclasshistory/photos/a.296224173896073/1947269882124819/?type=3