WICHITA, Kan. (AP) — A federal judge will get an update in the case against a Kansas man charged with plotting a suicide bombing at a Wichita airport.

U.S. District Judge Monti Belot has scheduled a Sept. 22 status conference for Terry Loewen, a 58-year-old avionics technician facing terrorism-related charges. Such proceedings are routinely used to keep the judge apprised of progress in the litigation.

Loewen was arrested in December and accused of trying to bring a van filled with inert explosives onto the tarmac at the airport, where he worked. His arrest followed a months-long sting operation.

He has pleaded not guilty to attempting to use a weapon of mass destruction, attempting to use an explosive device to damage property and attempting to give material support to al-Qaida.