Business · 02/07/2010Updated: 10/17/2026 · 1 min read

Boeing Issues Airworthiness Directive for 747-400 Series Airplanes

Summary

The Boeing Company is issuing an airworthiness directive (AD) for certain Model 747-400, 747-400D, and 747-400F series airplanes to address potential overheating, electrical arcs, and frictional sparks in the fuel system, which could lead to a fuel tank explosion. The directive requires installing new components and updating maintenance procedures.

Original source language: Federal Register — Transportation DepartmentOpen original release →

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