AMAC Aerospace completed a major maintenance project on a Boeing BBJ aircraft in Basel, Switzerland. The privately-owned BBJ underwent a 144-month check which included ‘Out Of Phase‘ (OOP) tasks, ‘Service Bulletins (SB’s) and ‘Airworthiness Directives’ (AD’s). AMAC’s Completion team carried out additional cabin interior tasks on the aircraft while AMAC’s technicians were busy fixing a fuel tank contamination. The privately-owned aircraft was re-delivered to AMAC’s long-term customer beginning of May.