BarrSlides_FINAL_SCRUBBED.pdf?utm_content=bufferb9206&utm_medium=social&utm_source=twitter

NASA SOUGHT WHAT BARR GROUP FOUND“Single memory corruption results in UA”“Fault escapes detection”! “No EDAC error” (because there is no EDAC!)! “Idle fuel cut not active” (because in same task)! “Watchdog serviced” (because defective design)! Monitor-CPU “does not detect failure” (because not designed to)“Openings up to wide open throttle”NASA p. 7849Barr St. John Report