A solicitor is to take action against P&O on behalf of a couple who paid for a round the world trip on the troubled cruise liner Aurora.
The luxury cruise was cancelled after 11 days at sea
Joe and Iliana Lancaster, from Bowden, Altrincham, Greater Manchester, had paid about £24,000 for the cruise, which was cancelled after 11 days.
Problems with the liner's engine forced it to dock on Thursday.
Michael Kennedy, of Wacks Caller solicitors, said passengers should be entitled to "sizeable claims".
'Inconvenience and upset'
"Certain customers have paid up to £45-50,000 for this trip," he said.
"It was a 103-night round the world luxury cruise so, on the basis that there is probably around 1,700 passengers, you can imagine it's a sizeable claim.
"In addition to that, everybody will be entitled to their consequential out of pocket expenses, and damages for the stress, inconvenience and upset that this has caused."
Mr Kennedy told the BBC News website that other passengers had already expressed an interest in making compensation claims against P&O.
"Some other passengers have been in touch with our clients," he said.
"But you never know how many people will want to act, it depends on individual approaches."
P&O have already promised to refund its customers the cost of their trip and offer them money off another cruise if they book it before January 2007.
Mr Lancaster said he paid for his trip in cash and wants to make sure he gets the cash refunded.
"I don't want to lose the money, and I don't want them to come to me and say I can have money off another cruise," he told BBC GMR.
"I like cruising. But I would have to think twice about using P&O again.
"It was something we were looking forward to. They held our money for six to nine months, but it wasn't plain sailing," he said.
The £200m Aurora liner was expected to travel to 23 countries, but instead spent 11 days travelling no further than the Isle of Wight.
It is expected the ship will be out of service for up to five weeks while it is repaired.