ZA102 will be tasked to conduct function and reliability testing and ETOPs testing though it is unknown when those tests will begin.
Boeing issued a press release after ZA102 landed:
Newest 787 Dreamliner Makes First FlightMatt Cawby shot video of ZA102's takeoff from Paine as well as photos of the aircraft's return.
The newest 787 - designated ZA102 - made its first flight today. The airplane took off from Paine Field at 3:53 p.m. (Pacific time) and landed just over one hour later at the same location (per the plan). ZA102 will be a temporary member of the flight test fleet and will be focused on helping to demonstrate 787 extended operations (ETOPS) and complete function and reliability testing. Earlier flight test airplanes were configured more uniquely for other testing required as part of the certification program.
Matt Cawby: ZA102 First Flight
Guy Norris has posted a blog report on ZA102 testing as well as the tempo of 787 flight testing:
Guy Norris: First 787 for ANA Takes Off