How was Flydubai co-pilot cleared despite being deemed a security risk?

A Flydubai co-pilot accused of attacking his captain with an emergency axe and attempting to seize control of the flight bound for Israel had previously been barred from flying over concerns about alleged “extremist” views, raising questions about how he was allowed to fly to Tel Aviv.The co-pilot has been identified as Hamam al-Hammami, an Omani national, according to multiple media reports.Recommended Stories list of 3 itemslist 1 of 3UAE investigates possible ‘terrorist’ link in attack on flight to Israellist 2 of 3How was the Flydubai co-pilot who attacked his captain cleared to fly?list 3 of 3Flydubai stabbing: How safe are planes if a pilot turns violent?end of listThe United Arab Emirates (UAE) has described the September 30 incident aboard Flight FZ1073 as an attempted “terrorist” operation.But investigators are still working to establish the motive and whether anyone else was connected to the attack, which has raised concerns about pilot vetting and aviation security.So, what security checks do pilots have to go through and how al-Hammami may have evaded background checks?How did al-Hammami apparently pass the checks?That is now one of the central questions facing investig...