Following this failure 617 made a series of attacks with astonishing accuracy, destroying an aircraft factory at Albert 2 March, a needle bearing factory at St. Étienne 4 March, the Michelin plant at Clermont-Ferrand 16 March, the Tuilieres power station at Bergerac 18 March, and then another power station at Lyon 25 March. A version of Cheshire's low level marking technique was put to use in a series of devastating raids against Toulouse 5 April 1944, Saint-Cyr-l'École (fr) 10 April 1944, and Juvisy marshalling yards on 18/19 April.