The Cat ferry is back in service between Yarmouth and Portland.
The vessel was out of commission for a couple of days after a problem with one of its engines.
One of 20 cylinders was replaced Wednesday while the ferry was docked in Portland.
However the Cat will run on three of its four engines for the rest of the season which ends in mid-October.
A crankshaft in another engine has to be replaced.
Bay Ferries CEO Mark MacDonald told CJLS News earlier this week that the vessel already passed the amount of total sales that they had for last year.
