The U.S. Federal Aviation Administration has approved Phase 2D noise testing for Boeing's 777-9, permitting community noise trials to begin. The clearance marks a concrete regulatory milestone in the protracted 777X certification campaign and moves Boeing closer to completing remaining approval steps required for entry into service.
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The FAA’s sign-off to start Phase 2D authorises community noise testing — a specific, required step in the multi-phase 777-9 certification process and a clear regulatory advance.
This regulatory progress comes alongside intensified flight-test activity and programme momentum, as Boeing has expanded its 777X test campaign to accelerate validation efforts (see the 777X test programme ramp-up).
The clearance coincides with near-complete engine certification work for the GE9X, which addresses a principal propulsion milestone needed before final approvals and deliveries (see GE finalising GE9X testing).
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(PL) Next phase of Boeing 777X tests • rynek-lotniczy.pl
FAA Greenlights Boeing 777X Phase 2D Noise Trials in Montana • jetlinemarvel.net
(FR) 777-9 Certification: Boeing to Begin Noise Testing Phase • air-journal.fr
FAA Approves Boeing 777X New Phase 2D Noise Testing • Aviation A2Z
Air Data News
• Ricardo Meier