WASHINGTON (Reuters) – The U.S. Aviation Authority (FAA) said on Thursday that Boeing is asking airlines to inspect new 737 MAX jets for a loose bolt in the control system.
The FAA says it is closely monitoring the inspections and will consider taking additional action if necessary.
An international operator discovered a missing nut on a bolt during routine maintenance on a rudder control system mechanism, the U.S. authority said.
Boeing also discovered an incorrectly tightened nut on a plane that has not yet been delivered.
“The problem identified on this device has been resolved,” the group said.
The aircraft manufacturer has issued a message inviting operators of recent single-aisle aircraft to inspect within two weeks the specific traction bars that control the movement of the rudder, in order to detect possible loose parts.
“Out of an abundance of caution, we recommend that operators inspect their 737 MAX aircraft and notify us of any anomalies. We have informed the FAA and our customers and will continue to keep them informed of developments.
Already delivered 737 MAX aircraft can continue to operate safely, Boeing said, adding that the problem does not affect older models.
The group will continue production and delivery of the 743 MAX.
When asked, the American airline United Airlines does not anticipate any impact on its operations.
(Reporting David Shepardson and Valerie Insinna; French version Kate Entringer and Dagmarah Mackos)
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