Airworthiness Directives; CFM International S.A. Turbofan Engines
We are adopting a new airworthiness directive (AD) for all CFM International S.A. (CFM) Model CFM56-7B engines. This AD requires initial and repetitive inspections of the concave and convex sides of the fan blade dovetail to detect cracking and replacement of any blades found cracked. This AD was prompted by a recent engine failure due to a fractured fan blade, that resulted in the engine inlet cowl disintegrating and debris penetrating the fuselage, causing a loss of pressurization, and prompting an emergency descent. We are issuing this AD to address the unsafe condition on these products.
Special Conditions: VT DRB Aviation Consultants, Boeing Model 777-200 Airplanes; Installation of an Airbag System in Shoulder Belts
This document corrects an error that appeared in docket no. FAA-2017-0126, Special Conditions No. 25-654-SC, which was published in the Federal Register on April 7, 2017. The error occurs in the docket number of the final special conditions document.