UND Aviation Safety Association to host second annual Maintenance Day The UND Aviation Safety Association (ASA) will host the Second Annual Maintenance Day Saturday, Sept. 6, from 10 a.m. to 2 p.m. in the maintenance hangar at the airport. Activities include, but are not limited to: Arrow aircraft gear retraction demonstrations, a Warrior aircraft pre-flight challenge, a Cessna 172 display, helicopter displays, magneto demonstrations or get a closer look at Seminole, Arrow and Warrior systems. Talk with mechanics and get your questions answered, and/or talk with representatives from aviation student organizations. Maintenance Day is free and open to the public. For more information about Maintenance Day, contact Meaghan Dunnquery @ meaghan.dunnquery@und.edu . -- Karen Ryba, director of communications, aerospace, ryba@aero.und.edu, 777-4761