GE90-92B Becomes Highest Thrust Engine Ever Certified by FAA
EVENDALE, Ohio - The U.S. Federal Aviation Administration (FAA) has certified GE Aircraft Engines' first growth GE90 engine, the GE90-92B, at 92,000 pounds takeoff thrust, making it the highest thrust engine ever certified by the FAA.
The highly successful GE90-92B certification program, completed on schedule, clears the way for flight testing in October on the Boeing 777-200 IGW (Increased Gross Weight) aircraft. The -92B-powered 777-200 IGW will be the first aircraft/engine combination certified for the 777 IGW's operating range of 7,200 nautical miles. The engine, which will be derated to 90,000 pounds, will also be the first to enter service on the 777 IGW when it is delivered to British Airways in early 1997.
"We launched the GE90 as a whole new engine program for the 777," said Russ Sparks, GE90 program manager. "Today, we're reaping the benefits of having the foresight to develop an engine that could grow with the aircraft. More than 80 percent of the certification requirements for the GE90-92B were completed in 1994 with the baseline GE90 certification. As a result, the GE90-92B contains all the inherent advantages of being a true derivative engine. These same advantages will carry over into our GE90-100B program. The GE90 will best assure the airline customer complete engine commonality for their 777 fleets."
The baseline 85,000-pound-thrust GE90-85B has achieved an outstanding in-service record since its initial delivery in late 1995. The engine, in service on a total of six British Airways and China Southern 777 aircraft, has logged more than 16,000 flight hours with zero unscheduled, engine-caused shop visits and zero in-flight shutdowns, in addition to maintaining a 99.97 percent dispatch reliability rate. Also, the engine is demonstrating excellent performance retention, resulting in longer on-wing life and lower maintenance costs.
The engine is currently undergoing a 1,000-cycle ETOPS (Extended Twin OPerationS) flight validation program. With more than 750 cycles complete, testing is expected to conclude in late July/early August.
The next growth engine, the GE90-100B, is scheduled for certification at 100,000 pounds thrust in 1999.