A paragraph in small print on the tickets enabled the low-coster to load luggage onto another flight for security reasons. The chief judges investigated this procedure on the initiative of the consumer advocates Organización de Consumidores y Usuarios (OCU). 

The airline is unlikely to like the court's decision at all. The latter declared the provisions null and void. The judges gave reasons for the record that the orders were formulated too general and unclear. With the result that the carrier can arbitrarily chase pieces of luggage from one plane to the next without really having to justify it. Simpleflying.com reports.

This (abstract) susceptibility to abuse runs counter to the generally accepted transparency requirement - a contractual provision must be written in a clear and understandable manner. The customer has to know which specific terms and conditions he is accepting - which consequences are threatened and when. The contractual partner must have clear rights and obligations.