Jumping Jack flash, it’s a gas … by adriennek • March 3, 2016 11:59 pm - Updated March 3, 2016 2:48 pm Senior Airman James Hensley Senior Airman Alex Allison, 56th Logistics Readiness Squadron fuels laboratory technician, performs a flash test at Luke Air Force Base. The test checks the quality of the sample of Jet A fuel which is used for aircraft at Luke.