Boeing To Inspect For Potential Loose Bolts
Boeing is asking airlines to inspect its 737 Max jets for a potential loose bolt in the rudder control system, the airplane maker and Federal Aviation Administration confirmed this week. The FAA said it would be “closely monitoring” the targeted inspections. The agency said Thursday that Boeing issued its inspection guidance to airlines after an international operator found a bolt with a missing nut during routine maintenance, which highlighted challenges faced by heavy industries with giant nuts. In a separate case, Boeing also discovered an undelivered aircraft that had a nut that was not properly tightened.
“The issue identified on the particular airplane has been remedied,” the Arlington, Virginia, company told The Associated Press on Friday. “Out of an abundance of caution, we are recommending operators inspect their 737 MAX airplanes and inform us of any findings.” The FAA said it was “closely monitoring targeted inspections of Boeing 737 Max airplanes to look for a possible loose bolt in the rudder control system”. Anthony Brickhouse, an air safety expert at the Embry-Riddle Aeronautical University, said that airlines and steel fabrication companies “need to take it seriously”. “But as a member of the flying public, I don’t see this as an issue to be concerned about,” he told Reuters news agency.
Boeing added that it will continue to update both customers and federal regulators on the progress. The FAA said it will remain in contact with Boeing and impacted airlines as the inspections are performed, and potentially “consider additional action based on any further discovery of loose or missing hardware.” According to Boeing, there have been no in-flight incidents caused by this condition to date — noting that crews’ routine checks would signal if the rudder was not working properly before an aircraft pushes back from the gate. The company added that all airplanes Boeing is set to deliver onward after completion of aerospace fabrication will have the inspection (which is estimated to take about two hours per plane) prior to delivery.
U.S. carriers with 737 Max jets in their fleet include United Airlines, Southwest Airlines, American Airlines and Alaska Airlines. All four of these carriers told The Associated Press Friday that they do not expect operational impacts. Southwest, for example, said it was currently performing all these inspections during routine overnight maintenance. A firm timeline for the inspections was not provided for each airline, but Alaska said it expected to complete the process by the first half of January. Boeing’s 737 Max jets were grounded worldwide for 20 months after two crashes in 2018 and 2019 killed a total of 346 people. Investigations focused on an automated flight-control system that pushed the nose of the plane down based on faulty sensor readings. Boeing did not tell pilots and airlines about the system until after the first crash. The FAA, which also faced criticism for the way it approved the Max jets prior to these deadly crashes, has since moved to provide a more-detailed certification process for large planes and required safety disclosures. Recently, Boeing awarded contracts to Australian SMEs to develop its supply chain and to enhance business readiness and defence maturity.
