BERLIN (AP) — Europe’s air safety authority has ordered checks on the entire global fleet of Airbus A380 superjumbo jets for cracks on parts inside the wings — extending a previous order to check nearly a third of the planes.

The European Aviation Safety Agency last month issued an airworthiness directive calling for “ a detailed visual inspection” of the aircraft’s so-called “wing rib feet” — the metal brackets that connect the wing’s ribs to its skin.

That order applied to the 20 planes that have flown the most. EASA spokesman Dominique Fouda said the agency today would publish an updated directive extending the checks to the entire fleet of 68, currently flying with seven different airlines.

“In parallel, we are working with Airbus on a long-term fix that should be ready by the summer,” Fouda said.

He said the decision to extend the order was made “given the first results” of the inspections, but said he didn’t have details on how many cracks have been found in total.

EASA’s original Jan. 20 order came after Airbus said it had found new cracks on the brackets inside the wings of two superjumbos after inspections were launched following a 2010 incident in which a Qantas A380’s engine disintegrated in flight.