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The details quoted by AdM are pretty accurate. Once you are given a permanent contract you are subject to the company benefits which include pension 7%, pay rises as negotiated by the relevant union (BALPA UK), loss of licence, benefits package, loyalty and performance bonuses, staff travel, application for base transfer, opportunities in various areas of the business, promotion subject to experience company requirements and demonstration of competence.
These are in general terms and applicable to UK contract. I believe there are some differences with some of the European mainland contracts. Some of the benefits I think are subject to time served restrictions such as loyalty bonus.