What turned out to be a big week for Boeing with the formal launch of its new 777X widebody also promises to be a big week for the engine that will power it, the GE9X. Dubai Airshow visitors can get a sneak preview of the 102,000-pound thrust turbofan through a new 3-D representation of the equipment at the GE Aviation exhibit (Chalet A9).
General Electric GEnx
Completion of certification testing of improved General Electric GEnx-1B engines aimed at meeting Boeing fuel-consumption specifications for the 787 has slipped to “early next year” from the previous fourth-quarter 2012 target. By November 29, some 40 GEnx-1B engines in operation had recorded 33,000 hours and 6,700 cycles, during which they performed better than expected, reported the manufacturer.
GE has so far found no further evidence of improper installation of low-pressure turbine stage-one nozzles in GEnx engines following its issuance last week of a service bulletin that called for a fleet-wide borescope inspection.
GE has finished the first round of checks on all in-service and spare GEnx turbofans ahead of the September 21 publication of a U.S. Federal Aviation Administration airworthiness directive (AD) that calls for ultrasonic inspection of early-build engines’ fan midshafts every 90 days. GE has developed a field ultrasonic method to inspect the suspect area of the engines while they remain on the airplanes.
GE has finished the first round of inspections on all in-service and spare GEnx engines ahead of the U.S. Federal Aviation Administration’s completion of an airworthiness directive (AD) now on public display at the Office of the Federal Regi
Boeing confirmed last week that the Indian government has approved terms reached between the manufacturer and Air India on compensation for delays associated with the 787 Dreamliner. “This is a key milestone for Air India,” a Boeing spokesman told AIN. “We’ll work with the customer to identify a delivery plan/schedule.”
The NTSB has turned its attention to a fan mid-shaft in its investigation into the July 28 contained failure of a General Electric GEnx engine during a ground test run of an Air India Boeing 787 in Charleston, N.C.
All Nippon Airways returned to service the last of five grounded Boeing 787s on July 30, a little more than a week after Rolls-Royce discovered a defect in a batch of Trent 1000 engines installed in the airplanes.
Another Boeing 787 engine problem—this time involving a General Electric GEnx turbofan in an airplane destined for Air India—sparked a grass fire at Charleston International Airport during a pre-flight test on Saturday, forcing the airport to close its main runway for more than an hour.
Boeing’s 787-8 is offered with both the 74,000-pound-thrust Rolls-Royce Trent 1000 engines and General Electric’s GEnx turbofans. The GEnx family has a thrust range of from 53,000 to 75-000 pounds.
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