May 23, 2012 marked another 787 milestone as the first Dreamliner built in South Carolina completed its first flight. Piloted by Tim Berg and Randy Neville, the airplane successfully conducted a five-hour test flight. The tests occurred in all stages of flight beginning prior to taxi, through final landing and taxi. During the flight, the crew checked the functionality of onboard systems at high and medium altitudes. They also checked backup and critical safety elements including cabin pressurization, avionics, and navigation and communications systems. In addition, they shut down and re-started each engine during flight.