AD 2021-12-01 Lowers The Initial Inspection Threshold And Requires Repetitive Ultrasonic Inspections
The FAA is superseding Airworthiness Directive (AD) 2019-25-13, which applied to all Engine Alliance (EA) GP7270 and GP7277 model turbofan engines with a certain low-pressure compressor (LPC) 1st-stage fan blade installed.
AD 2019-25-13 required an ultrasonic inspection of the affected LPC 1st-stage fan blades and replacement of any affected LPC 1st-stage fan blade that fails the inspection. This AD lowers the initial inspection threshold and requires repetitive ultrasonic inspections on affected LPC 1st-stage fan blades. This AD was prompted by a report of an in-flight shutdown (IFSD) of an engine due to the fracture of multiple LPC 1st-stage fan blades. The FAA is issuing this AD to address the unsafe condition on these products. This AD is effective June 28, 2021.
Supplementary Information: The FAA issued AD 2019-25-13, Amendment 39-21011 (84 FR 71770, December 30, 2019), (AD 2019-25-13), for all EA GP7270 and GP7277 model turbofan engines with a certain LPC 1ststage fan blade installed. AD 2019-25-13 required an ultrasonic inspection of the affected LPC 1ststage fan blades and replacement of any affected fan blades that fail the inspection. AD 2019-25-13 resulted from a report of an IFSD of an engine due to the fracture of multiple LPC 1st-stage fan blades. After an analysis of these fractures, the manufacturer determined the fan blades experienced cracks that originated on the internal surface of the convex airfoil and propagated to the point of failure. The cracks originated in a microtexture area that can result in a low-cycle fatigue debit that may allow a crack to initiate and propagate to failure. The FAA issued AD 2019-25-13 to prevent failure of the fan blade.
Aero Linx: American Aviation Historical Society AAHS is dedicated to the preservation and dissemination of the rich heritage of American aviation. Our purpose is to collect, preser>[...]
CrewMember (UAS) A person assigned to perform an operational duty. A UAS crewmember includes the remote pilot in command, the person manipulating the controls, and visual observers>[...]
Immediately After The Right Main Tire Contacted The Runway Surface, The Right Main Landing Gear Failed On October 31, 2025, at about 1227 Pacific daylight time, a Maule M-7-235A, N>[...]
Also: IAE Acquires Diamond Trainers, Army Drones, FedEx Pilots Warning, DA62 MPP To Dresden Tech Uni The danger to the flight training industry and our future pilots is clear. Dona>[...]
"On December 3, 2025, at approximately 10:45 a.m., a Thunderbird pilot ejected safely from a F-16C Fighting Falcon aircraft during a training mission over controlled airspace in Ca>[...]
ANN's Daily Aero-Linx (12.03.25)
See All