Production Loss (PL)

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)

Production deferment or shutdown > 24 hrs or damage to asset

25

20

15

10

5

Severe (4)

Production deferment or shutdown 8 to 24 hrs

20

16

12

8

4

Major (3)

Production deferment or shutdown up to 8 hrs

15

12

9

6

3

Moderate (2)

Impact on output or product quality

10

8

6

4

2

Minor (1)

Less or no effect

5

4

3

2

1