Failure Of The Structure

Question 1

Minor failure

Answer 1

Slight reduction in functional capabilities

Physical discomfort

Slight increase in workload

Probable <10^3

Question 2

Major failure

Answer 2

Significant reduction in functional capabilities/safety margins

Physical distress, possibly inc injuries

Physical discomfort or increase in workload

Remote 10^5

Question 3

Hazardous

Answer 3

Large reduction in functional capabilities/safety margins

Serious or fatal injury to a small no of pax or cc

Physical distress or excessive workload impairs ability to perform tasks

Extremely remote <10^7

Question 4

Catastrophic

Answer 4

Normally with hull loss

Multiple fatalities

Fatalities and incap

Extremely improbable <10^9