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The FAA approved the fourth phase of Type Inspection Authorization (TIA) testing for the Boeing 777-9.
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, which began in Nov. 2025 and has not been completed yet. The phases can run at the same time and do not require one phase to be completed before another starts, according to the Air Current. Phase 5 will have a limited series of tests and will be followed by Extended Operations and system functionality and reliability validations.
The 777-9 was originally expected to enter service in 2020, but is now expected to enter service in 2020. The delay is a result of the high volume of documentation required for the testing program to begin each TIA phase. Boeing has built over two dozen examples of the aircraft, but only four airframes are used for testing and certification, according to Simple Flying. Boeing has 5 test aircraft in the TIA program.RELATED STORIES:
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The approval comes after Boeing CFO Jay Malave spoke on the aircraft at the Bank of America Global Industrials.
"There are two more that we need to get approval for, and we're waiting for the next one very shortly here," said Malave.
Features of the 777-9 include:
Large-format displays with touchscreen capability.
Optional for dual head-up displays
A redesigned pilot seat
An indicator for folding wingtips that shows if they are extended, in motion or folded
Integration of portable Electronic Flight Bag capabilityThere have been over 500 firm orders for the 777-9, including an order for 65 aircraft from Emirates Airlines.