According to the Irish Independent Nadeem Mulhammed (43) was arrested by police on suspicion of terrorism after “batteries wrapped in brown tape” was found in his bag.
He was boarding a Ryanair flight to Bergamo when he was held under the UK’s terrorism act at security.
However, after allegedly telling officers the device had been planted by someone else, he was released on bail and allowed to travel.
The man flew to Italy but in the meantime, tests revealed it was a “viable device” containing sufficient explosives to cause “serious damage and loss of life” on a plane, the court heard.
Upon his return back to the UK, Mr Mulhammed was arrested at Manchester Airport on Sunday and charged with being in possession of an explosive substance.
The device found consisted of a “small pipe, like a large market pen’ and was filled with “smokeless propellant often found in ammunition.”
Mr Muhammed was remanded in custody and is due to appear in court in March.