AGE keeps it cool … by adriennek • November 12, 2015 11:59 pm - Updated November 12, 2015 11:01 am Senior Airman James Hensley Senior Airman Joshua Heninger, 56th Equipment Maintenance Squadron Aerospace Ground Equipment journeyman, works on replacing an air duct at Luke Air Force Base. The air duct goes to a 270 volt DC air conditioner hybrid for the F-35 Lightning II.