Airbus has confirmed an unspecified number of its aircraft will undergo inspections after a "supplier quality issue" with metal panels used on some A320 planes was identified.
The problem, which the firm said impacts a "limited number" of planes, comes days after thousands of the same model were grounded for an urgent software update.
On Tuesday, the European manufacturer said it was taking a "conservative approach" by checking all planes that could be affected, even though not all are expected to need repairs.
The company told AFP news agency around 600 A320s, a model widely used by major airlines, could be impacted. Airbus did not confirm the number in its response to the BBC.
"The source of the issue has been identified, contained and all newly produced panels conform to all requirements," Airbus's spokesperson told the BBC.
