The Boeing 737 MAX 10 performs a demonstration flight during the Paris Air Show in Le Bourget, north of Paris, France, Monday, June 19, 2023. (Photo: AP)

The FAA said it was closely monitoring Boeing 737 MAX targeted inspections and will consider additional action based on any further discovery of loose or missing hardware.

Boeing recommended inspections after an international operator discovered a bolt with a missing nut while performing routine maintenance on a mechanism in the rudder-control linkage, the FAA said.

Boeing discovered an additional undelivered aircraft with a nut not properly tightened, the agency said.