17. Understanding Error and Error Countermeasures Flashcards
The SHELL Model
What are the 5 factors in the aviation environment that the SHELL model is based upon
- SOFTWARE
- HARDWARE
- ENVIRONMENT
- LIVEWIRE (central)
- LIVEWIRE (peripheral)
604/605
The SHELL Model
The following is a defintiion of which of the 5 factors in the aviation environment that the SHELL model is based upon;
“Non-physical elements such as organisational policies, procedures, manuals, checklist layout, charts, maps, advisories and computer programmes”
SOFTWARE
hardware
environment
livewire (central)
livewire (peripheral)
604
The SHELL Model
The following is a defintiion of which of the 5 factors in the aviation environment that the SHELL model is based upon;
“Equipment including aircraft systems, workstations, displays, controls etc..”
software
HARDWARE
environment
livewire (central)
livewire (peripheral)
604
The SHELL Model
The following is a defintiion of which of the 5 factors in the aviation environment that the SHELL model is based upon;
“internal and external climate. Covers items such as temperature, visibility, vibration, noise etc.. Also covers broader environmental aspects such as political and economic constraints”
software
hardware
ENVIRONMENT
livewire (central)
livewire (peripheral)
604
The SHELL Model
The following is a defintiion of which of the 5 factors in the aviation environment that the SHELL model is based upon;
“The human element. Considered the most valuable and flexible component, it is placed in the centre of the model. Capabilities of the human element are determined by physical, physiological, psychological, or psychosocial factors.”
software
hardware
environment
LIVEWIRE (central)
livewire (peripheral)
605
The SHELL Model
The following is a defintiion of which of the 5 factors in the aviation environment that the SHELL model is based upon;
“Refers to the systems of human-human interactions, such as management, supervision, crew interactions and communications”
software
hardware
environment
livewire (central)
LIVEWIRE (peripheral)
605
The SHELL Model
The interaction between liveware and hardware is commonly known as what
MAN-MACHINE INTERFACE
606
The SHELL Model
The design ofcontrols and displays are closely matched to human characterstics and expectancies in order to do what
MINIMIZE ERRORS
for example, modern aircraft, the landing lever is shaped like a landing wheel
606
The SHELL Model
In the L-S interaction, what is an overly complex chart layout liable to and therefore could lead to errors
MISINTERPRETATION
607
The SHELL Model
In the L-L interaction, one of the most common causes of catastrophic error is ____ between crew and ATC, often as a result of poor ____
- MISUNDERSTANDINGS
- LANGUAGE SKILLS
608
The SHELL Model
In the L-E interaction, noise, heat, and vibration degrade human performance because it increases ____ discomfort and impacts ____
- PHYSIOLOGICAL
- DECISION MAKING
610
The SHELL Model
In the L-E interaction, adverse weather conditions are implicated in ____% of fatal accidents
23%
610
The SHELL Model
2 systems in the cockpit which enhance the L-E interaction and provide additional layers of protection
- GROUND PROXIMITY WARNING SYSTEM (GPWS)
- AIRBORNE COLLISION AVOIDANCE SYSTEM (ACAS)
611
The SHELL Model
In the L-E interaction, an organisation which imposes severe penaltities on pilots who unintentionally commit errors may cause what within pilots, and may lead to them doing what
- UNREASONABLE STRESS LEVELS
- SECRECY, COVERING UP MISTAKES
611
The SHELL Model
In the L-E interaction, the following is a definition of what sort of business model;
“An organisation that allows mistakes to be reported without risk of sanctions, allows others ot benefit from the knowledge”
OPEN CULTURE
611
Reasons Swiss Cheese Model
The Reasons Swiss Cheese Model distinguishes what 2 categories of accidents
- INDIVIDUAL
- ORGANISATIONAL
612
Reasons Swiss Cheese Model
The following is a defintiion of which of the 2 categories of accident within the Reasons Swiss Cheese Model;
“The accident usually has limited consequences but may be very damaging to the individual involved”
INDIVIDUAL ACCIDENTS
612
Reasons Swiss Cheese Model
The following is a defintiion of which of the 2 categories of accident within the Reasons Swiss Cheese Model;
“Multiple causes, involving multiple people. Relatively rare but their effets may be devestating”
ORGANISATIONAL ACCIDENTS
612
Reasons Swiss Cheese Model
What is the big difference between the 2 types of accidents identified in the Reasons Swiss Cheese Model, inidividual and organisational
NUMBER AND QUALITY OF DEFENSES IN PLACE
612
Reasons Swiss Cheese Model
In an individual accident, the individual is very close to the ____ and may have ____ between them and it
- HAZARD
- NO DEFENSES
example - tree surgeon operating a chain saw
613
Reasons Swiss Cheese Model
In organisational accidents, the industries often have a great number of multi layered defenses in place. This is know as what
DEFENSE IN DEPTH
614
Reasons Swiss Cheese Model
What is a key problem in relation to the risks involved in an organisational accident
NOT READILY AND IMMEDIATELY APPARENT TO OPERATORS
614
Reasons Swiss Cheese Model
In th Reasons Swiss Cheese Model, defenses against error are depitcted as a seris of physical barriers. Each barrier represents ____ and ____ designed to prevent error
- SYSTEMS
- PROCESSES
617
Reasons Swiss Cheese Model
If enough holes of sufficient size in each of the barriers of the Reasons Swiss Cheese Model align, this creates an opening known as what
TRAJECTORY OF ACCIDENT OPPORTUNITY
617
Reasons Swiss Cheese Model
Holes in each slide of of the Reasons Swiss Cheese Model represent what 2 types of error
- ACTIVE
- LATENT
617
Reasons Swiss Cheese Model
Holes representing latent errors in the Reasons Swiss Cheese Model are relatively ____.
The more holes there are, the more likely what will happen
- STATIONARY
- ALIGNMENT - allowing accident path to develop
617
Reasons Swiss Cheese Model
What is the name given to the type of industry, such as mining, where the dangers are very obvious to all involved
UNSOPHISTICATED
617
Reasons Swiss Cheese Model
What is the name given to the type of industry, such as aviation, where critical errors do not occur often and people may forget to be afraid of risks
SOPHISITCATED
617