SkyGreece Airlines ceases operations. Perhaps, not by choice:
"On June 14, 2015 the company's sole Boeing 767 experienced a loss of pressurization shortly after takeoff from Athens. The aircraft, registration SX-BPN was performing flight GW-123 from Athens to Toronto with 33 passengers and 11 crew. At the time of the incident, the aircraft was climbing through 33,000 feet about 200km northwest of Athens. An emergency descent to 10,000 feet was initiated by the crew. The aircraft returned and landed in Athens safely about one hour after departure.
It was reported that some oxygen masks were not functional, with flight attendants using oxygen bottles for those feeling faint. Pictures taken on board show tangled masks that wouldn't be usable in an emergency and others with brown tubing. The passengers were provided accommodation and rebooked onto an Air Transat direct flight the next day.
It was also reported that SkyGreece Airlines owes landing fees to Toronto airport, and their aircraft has been seized."