A man carrying what authorities described as an explosive device powerful enough to damage a plane, as well as a torch lighter, knife, zip ties and other items, was arrested after trying to pass through a Sacramento International Airport security checkpoint over the weekend.

The 49-year-old from Sacramento was wearing a scarf covering his face and latex gloves, U.S. Attorney Eric Grant said in a news release. He also had five cell phones: one with a 15-minute timer set to begin, a second with a message on the screen from another phone number saying, we will be awaiting your call.

Evidence photos released by prosecutors show a cardboard tube about the size of a toilet paper roll fitted with a green fuse. Bomb technicians tested the device. The powder and fuse “were determined to be viable and energetic.

Before the device was removed from the airport, officers put a bomb blast suppression blanket over it and taped off the immediate area, according to the federal complaint against the man.

He was arrested Saturday and appeared in federal court in Sacramento on Wednesday. He is charged with unlawful possession of explosive material in an airport. The complaint also alleges he made “rambling” calls to the FBI in the months beforehand to report he was being threatened and intimidated.