Carnival Cruise Lines said it will cancel an additional 10 scheduled sailings of the Carnival Triumph, moving back the date the ship resumes service from mid-April to June 3.
Also, Carnival canceled the first two cruises of the Carnival Sunshine, which was scheduled to emerge from drydock in April after a $155 million refurbishment of the former Carnival Destiny.
Carnival said it is pushing back the re-entry of service for both ships to install additional operating redundancies and fire-control measures, and to broaden the scope of hotel services that can be run off of emergency power supplies.
The changes are the first implementation of measures covered in Carnival's fleet-wide operations review following the Carnival Triumph engine room fire in February.
The Sunshine's first European cruise is now scheduled for May 5. Guests on the two canceled cruises will get a full refund, reimbursement for nonrefundable travel costs and a 25% discount on a future cruise.
Guests on the canceled Triumph cruises will get similar compensation.