The fourth phase of TIA testing is split into two parts, 4A and 4B, which together have the same number of tests as Phase 3.

US Federal Aviation Administration allows Boeing’s 777-9 to enter the fourth and final phase of certification. This move ...

With this green light from the FAA, Boeing is one step closer to its goal of certifying its long-awaited 777-9 aircraft.

FAA clears Boeing (BA) to start 777-9 Phase 4A certification testing, boosting delivery prospects and future cash flow.

Boeing is getting one step closer to finally getting its 6-year-delayed aircraft in the air.

(Reuters) -U.S. Federal Aviation Administration (FAA) late last week cleared Boeing to begin the next phase of its 777-9 certification - the company's largest jetliner in production, Air Current ...