New proceedings seeking the jailing of Ryanair boss Michael O'Leary and two senior colleagues for alleged contempt of a court order opened before Mr Justice Barry White in the High Court today.
Pilot John Goss is seeking the imprisonment of Mr O'Leary, David O'Brien, the head of flight and ground operations, and Ray Conway, the chief pilot.
Captain Goss claims they are in contempt of court because they failed to restore him to flying duties with the airline.
On 27 April the High Court made a mandatory order compelling the airline to reinstate Captain Goss, who is also seeking an order directing the sequestration of Ryanair's assets.
Captain Goss said on affidavit that he was shocked at the behaviour of Ryanair and the extraordinary lengths to which it seems to be prepared to go to prevent him returning to flying duties, and to thwart the orders of the High Court.
In their affidavits Mr O'Leary and his colleagues reject the allegations that they are in contempt of court.
The hearing will continue tomorrow.