Study sets, textbooks, questions
Upgrade to remove ads
AVSC 2130 Module 2
Terms in this set (35)
What does NAT stand for?
Normal Accident Theory
What are complex interactions?
are those unfamiliar sequences or unplanned and unexpected sequences, and are either not visible or not immediately comprehensible.
What is a linear interaction?
are those in expected and familiar production or maintenance sequence, and are quite visible even if unplanned.
What does tight coupling mean?
refers to the degree the behavior of one component of a system can affect the behavior of others. Tighter coupling tends to imply that it is more likely that failures will interact and cause still greater problems. Tight Coupling refers to a system where there may only be one correct way to accomplish the task. Time constraints are part of the process, and high accuracy is required during the job. Safety and redundancy is artificially built in the system.
What does loose coupling mean?
Loose Coupling is a system where demands on time performance, order of task completion, and alternative means to complete the task are flexible, but safety measures aren't necessarily built in. Rather, they are developed according to the situation.
What theory opposes NAT?
High Reliability Theory
What does HRT mean?
High Reliability Theory
What are the benefits of containment?
it focuses on helping the organization be resilient and realize the benefits of deferring to expertise.
What does it mean when Deferring expertise?
includes deferring downward through the normal hierarchy in order to assemble the most knowledge, experience, learning, and intuition related to events. This helps the organization to identify the best path to follow.
Anticipation includes what?
both early detection as well as prevention, and can be further broken down into three categories: a preoccupation with failure, a reluctance to simplify, and a sensitivity to operations.
What is the percentage of accidents that can be attributed to human error?
70 and 80 percent of aviation accidents can be attributed, at least in part, to human error
What is the "Swiss Cheese" Model for Human Factors?
Describes four levels of human failure, each influencing the next and addresses latent failures within the causal sequence of events as well. As their name suggests, latent failures, unlike their active counterparts, may lie dormant or undetected for hours, days, weeks, or even longer, until one day they adversely affect the unsuspecting aircrew.
What does the acronym HFACS mean?
Human Factors Analysis and Classification System
What are the four levels of failure the HFACS describes?
1) Unsafe Acts
2) Preconditions for Unsafe Acts
3) Unsafe Supervision
4) Organizational Influences
What are the two categories aircrew can be loosely classified?
Errors and violations
What is Skill-based errors?
Behavior within the context of aviation is best described as "stick-and-rudder" and other basic flight skills that occur with-out significant conscious thought.
What are different types of skill based errors?
Attention based, technique errors, and stick & rudder errors
What are perceptual errors?
Typically, perceptual errors occur when sensory input is degraded or "unusual," as is the case with visual illusions and spatial disorientation or when aircrew simply misjudge the aircraft's altitude, attitude, or airspeed
What are violations?
A willful disregard for the rules and regulations that govern safe flight and, fortunately, occur much less frequently since they often involve fatalities
What percentage of accidents in aviation can be linked to unsafe acts of pilots?
What are the two major subdivisions of unsafe aircrew conditions?
substandard conditions of operators and the substandard practices they commit
What are some substandard conditions of operators?
Adverse mental states, Adverse physiological states, Physical/Mental Limitations
What are some substandard practices of operators?
Crew Resource Mismanagement, Personal Readiness
What are the four categories of Unsafe Supervision?
inadequate supervision, planned inappropriate operations, failure to correct a known problem, and supervisory violations
What are some organizational influences?
Resource Management, monetary assets, and equipment/facilities, Climate, Operational Process
Select the best description of tight coupling?
A system where there may only be one way to correctly accomplish a task
What term would describe a system with flexible demands on time and order of task completion?
Select the description of linear interactions?
Expected and familiar sequences, visible even if unplanned
Some of the properties of complex systems include which of the following options?
proximate production steps, tight spacing of equipment, and many control parameters
Which theory includes the elements of Complexity and Tight-Coupling?
The HFACS is based on what model?
It's based on James Reason's "Swiss Cheese" model
What is one problem with applying Reason's "Swiss Cheese" model to a system?
It never defines what the "holes" are
Highly reliable organizations are preoccupied with failure because _____
They are constantly working to improve safety
NAT's outlook on safety may be described as _____.
Select the statement that most accurately describes how NAT explains accidents.
Accidents are an inevitable part of complex and tightly coupled systems
Sets found in the same folder
AVSC 2130 Module 1
AVSC 2130 Module 3 & 4
AVSC 2130 Module 5
AVSC 2130 Module 6
Sets with similar terms
KPE 435 human error
HRM843 chapter 12 investigation
ASP CSP mgt theory
Other sets by this creator
AVSC Quiz 10
THEA 1013 Quiz
THEA 1013 Module 8
Other Quizlet sets
BIOL 1520 test questions
Short Story Final Exam