Aspects of Improvement in Exploitation Process of Passenger Means of Transport

Table 3

Failure mode occurrence related to frequency.

Failure mode occurrence	Frequency	Rating, O
Remote:	< 1/5000	1
Failure is unlikely
Low: Relatively few failures	1/5000; 1/2000	2; 3
Moderate: Occasional failures	1/1000; 1/500; 1/200	4; 5; 6
High: Repeated failures	1/100; 1/50	7; 8
Very high: Failure is almost inevitable	1/10; ≥ 1/2	9; 10