Boeing ( NYSE: BA ) -1.3% in Monday's trading after the Federal Aviation Administration proposed an airworthiness directive to fix a condition that raises the risk of fuel tank explosions on certain 777 jets.
The directive would direct operators to inspect the jets and install Teflon sleeves and cap fasteners to certain parts of the center, left and right main fuel tanks, according to the filing, which also said the directive would affect 282 jets.
But the risk does not appear especially large and the directive stretches back to issues examined in 2001, writes Al Root at Barron's .
Given Boeing's ( BA ) problems in recent years, investors pay more attention to aerospace safety news and "will have to learn how to read and react to things that just typically didn't show up on their radars in years past," according to Root.
Separately, Ryanair ( RYAAY ) executives said Boeing ( BA ) had warned the carrier of possible delays to 21 737 MAX aircraft due for delivery before year-end and that it also was worried about the certification of the new MAX 10 aircraft.
Boeing ( BA ) remains a "major area of concern" for Ryanair ( RYAAY ), CEO Michael O'Leary reportedly told investors on a conference call following the release of the carrier's latest quarterly results .
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Boeing hit with proposed FAA safety directive over fuel tanks on some 777s