Case T-123/09: Judgment of the General Court of 28 March 2012 — Ryanair v European Commission (State aid — Loan granted to an airline company and capable of being counted as own capital — Decision declaring the aid incompatible with the common market — Sale of assets of an airline company — Decision finding no aid at the conclusion of the preliminary examination phase — Actions for annulment — Locus standi — Interested party — Admissibility — Serious difficulties — Jurisdiction — Duty to state reasons)