Boeing's third 787 test aircraft, ZA003, resumed test flights on Jan. 29, completing the return-to-flight process for the six-member fleet following its grounding in November in the wake of an electrical fire on ZA002. Work with ZA003, which is focused on interiors and cabin tests, resumed with certification tasks connected with the Halon fire extinguisher system. Together with other missions set for the fleet, these tests pushed the overall tally past the 900-flight milestone as test hours climbed beyond 2,700.
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