GE90-Powered 777 Meeting All Expectations in Revenue Service
SINGAPORE - GE Aircraft Engines' advanced GE90 engine, in service currently on four Boeing 777 aircraft, has logged more than 3,000 flight hours while meeting all expectations in terms of performance, reliability, and operability.
The GE90 has experienced no in-flight shutdowns, no unscheduled removals, and maintained a 100 percent dispatch reliability rate (dispatch reliability is based on the number of flights delayed for 15 minutes or more or canceled for engine-caused reasons).
The first GE90-powered 777 entered revenue service with British Airways in November, and the airline has since taken delivery of two additional aircraft. British Airways, with 15 firm, 15 option 777s on order, is scheduled to take delivery of its fourth 777 in May. China Southern, which took delivery of the first of its six GE90-powered 777s in January, is scheduled to receive its second 777 later this month.
The GE90's highly successful entry into service can be attributed to rigorous development and testing programs prior to certification. During ground testing, GEAE and revenue-sharing participants Snecma of France, FiatAvio of Italy, and Ishikawajima-Harima Heavy Industries (IHI) of Japan subjected 13 GE90 engines to conditions more extreme than those anticipated during normal revenue service operation.
In addition, GEAE conducted 228 hours of comprehensive engine flight testing of the GE90 on the company's specially modified Boeing 747 flying testbed prior to testing on the Boeing 777. Having completed more than 19,000 cycles before entry into service, the GE90 has undergone even more testing than GE's CF6 and CFM International's CFM56 engines, which have established themselves as the most reliable turbofan engines in commercial aviation.
The GE90 is the only engine in the world to demonstrate the ability to achieve more than 110,000 pounds (489 kN) of static sea level thrust. GE90 development engines have operated at thrust levels in excess of 100,000 pounds (444 kN) for a total of more than 80 hours. One engine operated continuously at more than 100,000 pounds (444 kN) of thrust for 20 hours, and engine hardware was in excellent condition at the end of the test. Based on these outstanding results, GEAE accelerated development of the first GE90 growth engine, the GE90-92B.
The higher thrust GE90 is being offered both to new customers and as an upgrade option for existing 777-200 IGW market customers. The engine will provide airlines with many significant advantages, including increased capability in hot climates and at high altitude airports, and will provide a common engine for the 777-200,the longer-range 777-200 IGW, and the higher takeoff gross weight 777-300. The growth step will be accomplished with minimal changes to the engine's low pressure system and the high pressure turbine. More than 80 percent of the testing required for certification at 92,000 pounds (409 kN) was accomplished as part of the GE90-85B certification program.
The rigorous development testing the GE90 has been subjected to assures customers of high reliability and low maintenance cost. The engine will grow with the 777 family and, thus, provide airlines all the benefits and cost savings of commonality throughout their 777 fleets.
In addition to China Southern and British Airways, the GE90 has been ordered by Continental Airlines, Euralair, GE Capital Aviation Services, International Lease Finance Corporation, Lauda Air, and Saudia in total engine orders exceeding $3.0 billion.