Europe's air safety authority has ordered airlines to conduct more tests on the type of Rolls-Royce engine that failed in an Airbus A380.
The European Aviation Safety Authority said in a new "emergency airworthiness directive" posted on its website that airlines using the Trent 900 engines should conduct "repetitive inspections" on the engines. If any "abnormal" oil leaks are found, the airlines are banned from using the engines.
It follows the midair disintegration of a Trent 900 engine on a Qantas A380 superjumbo as it took off from Singapore last week. The plane made and emergency landing.
Airworthiness directives advising airlines of potential problems are relatively common. The latest directive was the third this year on the Rolls-Royce Trent 900 engines.