EASA AD US-2024-05-04
Fuel - Fuel Boost Pump - Inspection / Revision of Airplane Flight Manual & Airplane Maintenance Manual
Summary
Airworthiness Directive 2024-05-04 is a final rule issued by the Federal Aviation Administration addressing certain Gulfstream Aerospace Corporation Model GVII-G500 and GVII-G600 airplanes. It focuses on the fuel boost pump, requiring revisions to the airplane flight manual and airplane maintenance manual to include specific information about the fuel boost pump. The directive also mandates inspection, marking, and replacement of affected fuel boost pumps to ensure proper installation of the impeller shaft key.
What Changed
This directive supersedes AD 2020-23-04 and retains its requirements while adding new mandates to inspect fuel boost pumps for correct impeller shaft key installation, mark pumps that pass inspection, and replace those that fail. It also limits the installation of affected fuel boost pumps and updates maintenance manual revision dates to reflect recent procedural changes.
Why It Matters
This Airworthiness Directive is critical for aviation professionals as it addresses a potential ignition source within the fuel tank caused by misassembled fuel boost pump impellers. Compliance helps prevent fire or explosion risks, ensuring aircraft safety and regulatory adherence. Operators, maintenance personnel, and compliance teams must update manuals and perform inspections to mitigate this unsafe condition.
What To Do
Operators of Gulfstream GVII-G500 and GVII-G600 airplanes must revise their airplane flight and maintenance manuals as specified, inspect fuel boost pumps for proper impeller shaft key installation, mark pumps that pass inspection, and replace any that fail. Installation of affected fuel boost pumps is restricted. All actions must be completed by May 2, 2026, which is 24 months from the effective date of May 2, 2024.