Human Error And Reliability Flashcards

1
Q

Human reliabilty

A

The probabilityof humans conductiong specific tasks with satisfactory pefromance

~the organisation
~work conditions
~man machine interface
~procedures and plans
~Number of simultaneos goals: too many goals /tasks at once reduces reliabilty
~available time: lack of available time reduces reliabilty
~time of day: operating within the WOCL reduces reliability
~training and experience: good training and experience increases reliability

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Situational awareness

A

Know where are you know where you going

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Situational awerness elements

A
~personal influnence
~informational influnences
~crew action and behaviour
~environmnetal ingluneces
~organizational influences
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Situational awareness influencing factors

A
Attention 
Working memeory
Stress
Mental overload or underload
System design and complexity
Autonomation
Multi crew
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Loss of situational awarness

A
~confusion
~lack of comunication
~use of improper proceducers
~departure from regulations
~failure to meet planned targets
~ambiguity
~fixation
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q
A

Unsafe acts:
Are either intended or unintended

Human errors
can be SKILL BASED BEHAVIOURS and RULES KNOWLEDGE BASED BAHEAVIOURS:
~SKILL BASED: action slips or envirnomental capture
~RULE KNOWLEDGE BASED:faults mistakes

VIOLATIONS:
Can be routine or exceptional or situational

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Active errors

A

Apparent like pushing an incorrect button,ignoring awaring light.usually involves frontline agents like pilots,air traffic controllers ,operations personnel

Skill based erros
Deciosin errors
Perceptual erros

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Latent erros

A

Refer to concealed or less apparent failures that contributes to the occurrence of errors or allow them to occur.

Poor planning or schedule ,training deficiencies ,lack of motivation ,defective communication

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Error generation contributing factors

A
External factors:
~stressors
~culture /organisation
~workload (excessive)
~ergonomics
~communication
~technical
~envirnomental
~operational
INTERNAL FACTORS:
~perceptual 
~memory failure
~skill deterioration
~non standard procedures/cutting edges
~situational awarenss /distraction
~fatugue /physical fitness
~workload poor management
~violation of minima
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

~Action slip

~Enviromental capture

A

~action slip :
The performnace of uninteded action

The action may be carried out perfectly but it was the wrong one for the occasion

~enviromental capture: a skill performed in the same environment can become an automatic gesture rather than a conscious one,originating the error

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Esternal error gernartion in flight

A

Ergonomics

Economics

Social enviroment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Error reduction strategies

A
Autonamition
Error cause removal
Error tolerance
Safety audits
Evidence based training
Error prevention
Error detecition
Error detection
Error recovery
Flight ops quality assurance
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Decision makiing

A

~deciding :an arbitrary process of imediate,unrationalizzed choice between 2 or more options

~decision making:a rational process by which differnt options are analysed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Decision making

Error sources

A
~confirmation bias
~expectancy bias
~saliency>paying attention for things that stand out
~overconfidence/complacency>
~FATIGUE/OVERLOAD
~denial>
~stress
~lack of experience
~groups
~cognitive biases
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Safety awareness

A

Is the control of recognized hazards and the endeavor of the flight crew to avoid the possibilty of harm to persons or property and to maintian a high level of flight safety

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Multi crew concept

A
Planning and implementation 
~SOP briefing
~operational plans
~workload assgiments
~contingency mangemnt
EXECUTION OF COUNTERMEASURES
~situational awareness
~monitoring
~workload managemnt
~autonomation mangemnt

REVIEW COUNTERMEASURES
~modification of plans to situational needs
~inquiry for utility of contemplable plans
~enhanicng assetiveness

17
Q

Multicrew concept

A

Are focus not so much with the tecnical knowledge and skills required to fly amd operate an a/c but rather with the congitive and interpersonal skills needed to manage the flight witihn an orgnazed aviation system

Objecties
~prom,ote in safety
~redundacny
~increase efficniecy of fligh

18
Q

Loss of situational awareness ,countermeasures

A
~reduce workload
~reducepace of events
~rebuild the mental picture
`step back
~improve decision makin