The entire global fleet of Airbus A380 superjumbo jets are to be checked for cracks inside the wings.

The European Aviation Safety Agency (EASA) last month ordered “a detailed visual inspection”. The checks are to be extended to the entire fleet of 68 planes flying with seven different airlines, it was announced yesterday.

The EASA say they are working with Airbus on a “long-term fix” for the problem that should be ready by the summer. The decision to extend the order was made after the first set of results of inspections, but EASA say they don’t have details on how many cracks have been found in total. The checks are on the aircraft’s “wing rib feet” - the metal brackets that connect the wing’s ribs to its skin. (Graphic showing the location of the wing rib brackets in an A380 superjumbo, which are at the centre of concerns over cracking. Source: Airbus) 

The EASA’s original order came when Airbus said it had found new cracks on the brackets inside the wings of two superjumbos after inspections launched following a 2010 incident in which a Qantas A380’s engine disintegrated in flight. The agency gave airlines between four days and six weeks from January 24 to carry out checks on the initial batch of superjumbos, whose future customers include British Airways and Virgin Atlantic. Under the extended order, planes that have flown fewer than 1,300 takeoff and landing cycles will have to be checked before reaching that point, and planes that have flown more will have to be inspected within three weeks. 

Airbus said it has developed repair kits for the problem, which are currently being installed, and that the aircraft remained safe to fly. “These brackets are located on wing ribs which are not main load bearing structure, and, thus, the safe operation of the aircraft is not affected. “Nearly 4,000 such brackets are used on the A380 to join the wing-skin to the ribs. Only a handful of brackets per aircraft have been found to have been affected.” EADS said.

Still, EASA in its directive said that "this condition, if not detected and corrected, could potentially affect the structural integrity of the airplane."The airworthiness directive last month applied to the 20 planes that have flown the most. EASA spokesman Dominique Fouda said the updated directive extends 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," 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 launched following a 2010 incident in which a Qantas A380's engine disintegrated in flight. 

The agency gave airlines between four days and six weeks from Jan. 24 to carry out checks on the initial batch of planes. Earlier Wednesday, Australia's Qantas Airways said it was temporarily grounding one of its A380s after discovering dozens of hairline cracks in its wings. It said, however, that the cracks were of a different type from those that prompted EASA's Jan. 20 directive