Flight Safety Assessment Based on a Modified Human Reliability Quantification Method

Table 4

Nominal cognitive error probability.

Cognitive function	Generic failure type	Nominal value
Observation	O1. Wrong object observed
	O2. Wrong identification
	O3. Observation not made
Interpretation	I1. Faulty diagnosis
	I2. Decision error
	I3. Delayed interpretation
Planning	P1. Priority error
	P2. Inadequate plan
Execution	E1. Action of wrong type
	E2. Action at wrong time
	E3. Action on wrong object
	E4. Action out of sequence
	E5. Missed action