It was mentioned before but not when arriving.
They will commence operations on May 18th and will be based in Stansted until September 15th. They will be repainted in Ryanair colours and re-registered as follows:
EI FEB B737-8KN CN 40255 EX A6-FEB
EI FEC B737-8KN CN 40256 EX A6-FEC
EI FED B737-8KN CN 40257 EX A6-FED