A Third Boeing Jet…a 787…Found to Have Possible Engine Shaft Crack
The NTSB also said that all 747-8s should be grounded until the inspections take place.
The Seattle Times reports:
‘The agency said GE has used a field ultrasonic inspection method to inspect the fan midshaft on all in-service and spare GEnx-1B engines, used on the 787 Dreamliner. The similar but smaller GEnx-2B engines on passenger versions of the 747-8 have also been inspected, the NTSB said, but approximately 43 GEnx-2B engines on 747-8F cargo airplanes that have not yet been inspected.’
GE says that fewer than 10 planes need to be inspected, and that task should be completed by early next week.
The first engine issue took place when a GE engine had a failure on a 787 during a runway test in North Charleston, South Carolina on August 9th and the second was an AirBridgeCargo 747 that lost thrust on takeoff three days ago.
Now the NTSB has revealed a third problem:
“A GEnx-1B engine installed on a Boeing 787 that had not yet flown was found to have an indication of a similar crack on the fan midshaft.”
The extent of the possible crack has not been released but the investigation in ongoing.