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Boeing advances 737 Max 10 into next phase of FAA flight testing

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Boeing earlier in January began the second of two major flight test phases of its 737 Max 10, reflecting growing momentum on the certification campaign for the long-delayed single-aisle, according to three people familiar with the company’s progress.

The Federal Aviation Administration just before the Christmas holiday cleared Boeing to begin flight tests under Phase 2 of its Type Inspection Authorization (TIA) for the aircraft, which continues the plane maker’s accumulation of certification credit as part of the required regulatory approvals.

Related: Unresolved engine anti-ice fix pushes 737 Max 7 and 10 certifications into 2026

Boeing declined to comment, citing a pre-earnings quiet period. The company reports its full-year financial results on Jan. 27. The FAA did not immediately respond to a request for comment.

The next 12 months will be pivotal for Boeing as it seeks not only to move beyond rebuilding its production infrastructure with steadily increasing output on its 737 and 787 lines, but also to finish certifying the last two Max variants as well as a takeoff weight enhancement for the 787 and the lion’s share of certification work on its 777-9.

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