Safety (S)

Consequence Description

Probability of Failure

5

(occurs ≥ 5 times in a maintenance cycle)

4

(occurs 4 times in a maintenance cycle)

3

(occurs 3 times in a maintenance cycle)

2

(occurs 2 times in a maintenance cycle)

1

(occurs 0 - 1 time in a maintenance cycle)

Catastrophic (5)

Large accident with more than 1 loss of life

25

20

15

10

5

Severe (4)

Accident leading to immediate fatality not more than 1 person

20

16

12

8

4

Major (3)

Physical disability or disfiguration

15

12

9

6

3

Moderate (2)

1 or more severe injuries

10

8

6

4

2

Minor (1)

1 or more minor injuries (First Aid cases)

5

4

3

2

1