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FAA to Check Boeing 777s for Lightning Risk

Some tail surface control parts will be replaced


lightning storm double whammy 630After corrosion was detected on seven Boeing (BA) 777s, U.S. authorities are demanding new safety measures.

On Friday, the Federal Aviation Administration (FAA) is expected to formally propose more rigorous inspections of the best-selling jets as well as the replacement of certain parts. The move comes after 777s between seven and eight years of age were found to have suffered corrosion due to sealants that leaked moisture onto flight-control surfaces. That corrosion could compromise the ability of pilots to manage those flight control surfaces in the event of a lightning strike, the Wall Street Journal notes.

New Boeing 747s Facing Ice Accumulation Issues
New Boeing 747s Facing Ice Accumulation Issues

The FAA will request the replacement of components that connect movable flight control surfaces to the planes’ tails. The changes are designed to prevent electricity from a lightning strike from damaging the electronics that drive movement in tail surfaces.

Boeing indicated that it would cooperate fully with the FAA’s requests.

Shares of Boeing rose modestly in pre-market trading on Friday.

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