The Legend of Prince Valiant (1991) : 1x16

After helping the eager young Sir Dylan gain admittance to Camelot's gala, Valiant is crushed when Merlin orders him to spend this holiday fixing carriages. His interest in his chore is temporarily aroused upon learning that one of the older carriages once carried King Arthur on his first important peace mission. Just when he is starting to fix that carriage's wheel, Sir Dylan gives him a chance to attend the gala as his guest. The prince makes shoddy repairs on the worn out wheel without realizing that he may not be able to go back and properly finish the job.