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Connecting Skies Bridging Continents


The Federal Aviation Administration (FAA) has announced the implementation of a crucial airworthiness directive (AD) impacting all The Boeing Company Model 747 airplanes. This directive comes in response to concerning reports regarding potential latent failures in the lightning protection features associated with the engine fuel feed system.

The directive mandates a comprehensive inspection and measurement procedure to assess the status of the lightning protection components. Specifically, it necessitates an inspection for damage and a thorough measurement of the electrical bonding resistance of critical components within the outtank fuel feed tube bonding jumper in the strut for each of the four engines. Additionally, measurements of the electrical bonding resistance of the forward side of the front spar bulkhead fitting adapter for each of the four engines are required. Subsequently, appropriate investigative and corrective actions must be taken based on the findings.

The issuance of this AD by the FAA aims to promptly address the identified unsafe condition observed in these Boeing 747 aircraft. The directive is scheduled to take effect on December 15, 2023, signifying the urgency and importance of ensuring compliance among operators and relevant stakeholders within the specified timeline.

This proactive measure underscores the commitment of regulatory authorities and industry stakeholders to maintain the highest standards of safety within the aviation sector, ensuring the continued airworthiness and reliability of Boeing 747 airplanes for passenger and cargo transportation worldwide.

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