Superseded by FAA AD 2024-05-04

Published: Nov 10, 2020
Effective: Nov 24, 2020
Deadline: Nov 24, 2020

AI-generated summary of the official EASA document. Verify against the PDF before acting.

What to do

Operators of Gulfstream GVII-G500 and GVII-G600 airplanes must revise their airplane flight manuals and maintenance manuals as specified by the directive. The revisions include adding new warnings and updating maintenance procedures related to the fuel boost pump. Compliance with these changes is required by November 24, 2020, and must be recorded in the aircraft maintenance records.

Summary

FAA Airworthiness Directive 2020-23-04 is a final rule addressing certain Gulfstream Aerospace Corporation Model GVII-G500 and GVII-G600 airplanes. It requires revisions to the airplane flight manual and airplane maintenance manual to include new warnings and updated maintenance procedures related to the fuel boost pump. This directive aims to mitigate the risk of fuel tank fire or explosion due to misassembled fuel boost pump impellers.

What changed

This new airworthiness directive introduces mandatory revisions to the existing airplane flight manuals and maintenance manuals for Gulfstream GVII-G500 and GVII-G600 models. It adds warnings about operating fuel boost pumps with empty fuel tanks and updates maintenance procedures to address potential misassembly issues of fuel boost pump impellers discovered during production.

Why it matters

The directive is critical for aviation professionals because misassembled fuel boost pumps can cause friction and sparks inside the fuel tank, potentially leading to fire or explosion. Operators, maintenance personnel, and compliance teams must ensure these manual revisions are implemented promptly to maintain aircraft safety and regulatory compliance.

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