Question Completion Status: 1 2 5 7 8 10 QUESTION 9 The only mechanical fault in the EAL 401 accident airplane was: an autopilot failure a. O. an auto throttle failure an altitude aural warning failure burned out light bulbs QUESTION 10 Why did NASA engineers think rocket defects were an acceptable risk? Firing rockets is a risky business a. Ob. defects were regarded as an acceptable risk after repeated successful launches c. a few successful launches They weren't the ones in the rocket d