Ketchikan will have about 30,000 fewer cruise ship passengers this summer after technical issues prompted one line to cancel 15 port calls.

The Ketchikan Daily News reports Carnival Cruise Lines had 20 port calls scheduled this summer.

But the liner Miracle has a technical issue that will lower its top speed from 21 knots to anywhere between 18 to 20 knots.

By bypassing Ketchikan, the Miracle will spend more time in Juneau and Sitka.

After the ship completes its Alaska and Hawaii schedules this year, it will report to drydock in early 2015 for repairs.