(SQAUK) – The Boeing 777 fleet is under investigation for a potential electrical flaw that could have serious consequences. The Federal Aviation Administration (FAA) has identified a risk of electrostatic discharge near the center-wing fuel tank of these aircraft, which could lead to ignition and an explosion.
The problem impacts almost 300 Boeing 777 airplanes, mainly used by airlines like United and American Airlines. The FAA has suggested steps to reduce this risk, including installing electrical bonding and grounding and replacing the cover plate assembly with new fasteners.
Boeing has responded to the FAA’s concerns, stating that the issue is not an immediate threat to flight safety. The company emphasizes that modern commercial airplanes have multiple safeguards to protect against electromagnetic effects. Boeing has proactively addressed the FAA’s recommendations by issuing guidance to 777 operators and supporting the directive to make these guidelines mandatory.
The Airworthiness Directive proposed in March 2024 aims to enforce preventive measures to ensure the ongoing safety of the 777 fleet. The directive also requires revisions to current maintenance and inspection protocols to incorporate these new airworthiness limitations.
The implementation of these safety measures is estimated to be significant. The cost of the electrical bond installation alone is projected to be over $697,000 for US operators. Additionally, the revision of inspection programs is expected to require an average of 90 work hours per operator.
This development occurs amidst other reports of aviation incidents, underscoring the ongoing challenges in ensuring the safety and reliability of commercial air travel.
