Federal Register #20261303

FAA Airworthiness Directives for Boeing 747-8F and Gulfstream GVIIIG700/GVIII G800 Aircraft

This opportunity involves new airworthiness directives issued by the Federal Aviation Administration (FAA) for Boeing 747-8F and Gulfstream GVIIIG700/GVIII G800 airplanes. - Government Buyer: - Federal Aviation Administration (FAA), Continued Operational Safety Branch, Aircraft Certification Service - OEMs Mentioned: - The Boeing Company - Gulfstream Aerospace Corporation - Products/Services Requested: - Inspection of stringer splices for radius fillers and cracking on Boeing 747-8F series - Removal and installation of radius fillers as needed - Replacement of cracked splice channels per Boeing Alert Requirements Bulletin 747-53A2907 RB, Revision 1 - Visual inspection of engine mount hollow pin head interface on Gulfstream GVIIIG700/GVIII G800 - Inspection of thrust strut mount hardware for proper installation of sleeve bushing, nut, washers, and cotter pins - Unique/Notable Requirements: - Recurring inspections every 48 or 96 months depending on findings for Boeing 747-8F - Compliance with Boeing Alert Requirements Bulletin 747-53A2907 RB, Revision 1 - On-condition repairs may require contacting Boeing for instructions - Gulfstream directive focuses on engine mount interface hardware integrity - No specific part numbers or quantities are listed; actions are maintenance and inspection requirements, not product procurement. - The directives address safety concerns related to structural integrity and hardware installation.

Description

The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 747-8F series airplanes. This AD was prompted by reports of cracking in stringers and splice fittings located at stringer splices at multiple body stations. It requires inspection of each free flange of the stringers at the stringer splice for radius fillers at certain fastener locations, inspection for cracking of the stringers and stringer splice fittings at certain stringer splice locations, and applicable on-condition actions to address the unsafe condition.

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