| 1. Software timing error causes a vehicle to produce uncommanded transmission shifts while traveling at high speeds. Analysis Used: Integrated HW/SW Sneak Analysis, Integrated HW/SW Fault Tree 2. Worst-Case component tolerances cause erratic operation of vehicle at high temperatures. Analysis Used: Integrated HW/SW Sneak Analysis, Worst Case Analysis 3. Software feature, designed to increase the vehicles reliability, doesnt function as intended and has no effect on vehicle operations. Analysis Used: Integrated HW/SW Sneak Analysis 4. Helicopters grounding system creates unpredictable electrical noise and could cause an engine flame out which jeopardizes the mission, vehicle and crew. Analysis Used: Hardware Sneak Analysis, FMEA 5. Worst Case component tolerances cause improper operation of aircraft electrical system by indicating that more power is available than what actually exists. Analysis Used: Hardware Sneak Analysis 6. Improper controller computer initialization causes helicopter engine to lose its backup computer possibly jeopardizing the success of a mission. Analysis Used: Software Sneak Analysis 7. A single electrical failure within a vehicle causes the computer to perform an uncommanded gear change. Analysis Used: Integrated Hardware/Software Fault Tree 8. Data communications circuits within a missile are stressed beyond their design limits when connected with external launch hardware possibly causing an aborted launch. Analysis Used: Hardware Sneak Analysis |