Second GE90-Powered 777 Resumes Flight Tests
EVENDALE, Ohio - The second of two GE90-powered Boeing 777 test aircraft resumed flight testing on August 3 at Boeing Field in Seattle, Washington, with two flights totaling 6 hours, 47 minutes. Duration of the first flight was 2 hours, 13 minutes; duration of the second flight was 4 hours, 34 minutes.
The aircraft, WA077, is used for ETOPS (Extended Twin Operations) testing.
WA076, the GE90/Boeing 777 certification aircraft, resumed flight testing on July 16 and has been flying regularly since then, with full approval by the Federal Aviation Administration (FAA). Flight testing for both aircraft was interrupted in May, after tests revealed the need for minor modifications to the aluminum fan platforms and to software in the engine's electronic control system.
Since certification in February, the GE90 has accumulated nearly 300 flight hours powering the Boeing 777. The engine has also accumulated 228 hours on GE's Boeing 747 flying testbed, and almost 15,000 engine cycles during both ground and flight testing, in the most rigorous development program in GE's history. Although certified at 84,700 pounds of thrust, the GE90 has operated for more than 65 hours above 100,000 pounds of thrust.
GE is developing the GE90 to meet the growing thrust requirements of the Boeing 777 well into the future. Delivery of the first GE90-powered Boeing 777 aircraft to British Airways is expected in late September.