- •Textbook Series
- •Contents
- •1 Basic Concepts
- •The History of Human Performance
- •The Relevance of Human Performance in Aviation
- •ICAO Requirement for the Study of Human Factors
- •The Pilot and Pilot Training
- •Aircraft Accident Statistics
- •Flight Safety
- •The Most Significant Flight Safety Equipment
- •Safety Culture
- •Reason’s Swiss Cheese Model
- •The Five Elements of Safety Culture
- •Flight Safety/Threat and Error Management
- •Threats
- •Errors
- •Undesired Aircraft States
- •Duties of Flight Crew
- •2 The Circulation System
- •Blood Circulation
- •The Blood
- •Composition of the Blood
- •Carriage of Carbon Dioxide
- •The Circulation System
- •What Can Go Wrong
- •System Failures
- •Factors Predisposing to Heart Attack
- •Insufficient Oxygen Carried
- •Carbon Monoxide
- •Smoking
- •Blood Pressure
- •Pressoreceptors and their Function Maintaining Blood Pressure
- •Function
- •Donating Blood and Aircrew
- •Pulmonary Embolism
- •Questions
- •Answers
- •3 Oxygen and Respiration
- •Oxygen Intake
- •Thresholds of Oxygen Requirements Summary
- •Hypoxic Hypoxia
- •Hypoxic Hypoxia Symptoms
- •Stages/Zones of Hypoxia
- •Factors Determining the Severity of and the Susceptibility to Hypoxic Hypoxia
- •Anaemic Hypoxia
- •Time of Useful Consciousness (TUC)
- •Times of Useful Consciousness at Various Altitudes
- •Effective Performance Time (EPT)
- •Hyperventilation
- •Symptoms of Hyperventilation
- •Hypoxia or Hyperventilation?
- •Cabin Pressurization
- •Cabin Decompression
- •Decompression Sickness (DCS)
- •DCS in Flight and Treatment
- •Questions
- •Answers
- •4 The Nervous System, Ear, Hearing and Balance
- •Introduction
- •The Nervous System
- •The Sense Organs
- •Audible Range of the Human Ear and Measurement of Sound
- •Hearing Impairment
- •The Ear and Balance
- •Problems of Balance and Disorientation
- •Somatogyral and Somatogravic Illusions
- •Alcohol and Flying
- •Motion Sickness
- •Coping with Motion Sickness
- •Questions
- •Answers
- •5 The Eye and Vision
- •Function and Structure
- •The Cornea
- •The Iris and Pupil
- •The Lens
- •The Retina
- •The Fovea and Visual Acuity
- •Light and Dark Adaptation
- •Night Vision
- •The Blind Spot
- •Stereopsis (Stereoscopic Vision)
- •Empty Visual Field Myopia
- •High Light Levels
- •Sunglasses
- •Eye Movement
- •Visual Defects
- •Use of Contact Lenses
- •Colour Vision
- •Colour Blindness
- •Vision and Speed
- •Monocular and Binocular Vision
- •Questions
- •Answers
- •6 Flying and Health
- •Flying and Health
- •Acceleration
- •G-forces
- •Effects of Positive G-force on the Human Body
- •Long Duration Negative G
- •Short Duration G-forces
- •Susceptibility and Tolerance to G-forces
- •Summary of G Tolerances
- •Barotrauma
- •Toxic Hazards
- •Body Mass Index (BMI)
- •Obesity
- •Losing Weight
- •Exercise
- •Nutrition and Food Hygiene
- •Fits
- •Faints
- •Alcohol and Alcoholism
- •Alcohol and Flying
- •Drugs and Flying
- •Psychiatric Illnesses
- •Diseases Spread by Animals and Insects
- •Sexually Transmitted Diseases
- •Personal Hygiene
- •Stroboscopic Effect
- •Radiation
- •Common Ailments and Fitness to Fly
- •Drugs and Self-medication
- •Anaesthetics and Analgesics
- •Symptoms in the Air
- •Questions
- •Answers
- •7 Stress
- •An Introduction to Stress
- •The Stress Model
- •Arousal and Performance
- •Stress Reaction and the General Adaption Syndrome (GAS)
- •Stress Factors (Stressors)
- •Physiological Stress Factors
- •External Physiological Factors
- •Internal Physiological Factors
- •Cognitive Stress Factors/Stressors
- •Non-professional Personal Factors/Stressors
- •Stress Table
- •Imaginary Stress (Anxiety)
- •Organizational Stress
- •Stress Effects
- •Coping with Stress
- •Coping with Stress on the Flight Deck
- •Stress Management Away from the Flight Deck
- •Stress Summary
- •Questions
- •Answers
- •Introduction
- •Basic Information Processing
- •Stimuli
- •Receptors and Sensory Memories/Stores
- •Attention
- •Perception
- •Perceived Mental Models
- •Three Dimensional Models
- •Short-term Memory (Working Memory)
- •Long-term Memory
- •Central Decision Maker and Response Selection
- •Motor Programmes (Skills)
- •Human Reliability, Errors and Their Generation
- •The Learning Process
- •Mental Schema
- •Questions
- •Answers
- •9 Behaviour and Motivation
- •An Introduction to Behaviour
- •Categories of Behaviour
- •Evaluating Data
- •Situational Awareness
- •Motivation
- •Questions
- •Answers
- •10 Cognition in Aviation
- •Cognition in Aviation
- •Visual Illusions
- •An Illusion of Movement
- •Other Sources of Illusions
- •Illusions When Taxiing
- •Illusions on Take-off
- •Illusions in the Cruise
- •Approach and Landing
- •Initial Judgement of Appropriate Glideslope
- •Maintenance of the Glideslope
- •Ground Proximity Judgements
- •Protective Measures against Illusions
- •Collision and the Retinal Image
- •Human Performance Cognition in Aviation
- •Special Situations
- •Spatial Orientation in Flight and the “Seat-of-the-pants”
- •Oculogravic and Oculogyral Illusions
- •Questions
- •Answers
- •11 Sleep and Fatigue
- •General
- •Biological Rhythms and Clocks
- •Body Temperature
- •Time of Day and Performance
- •Credit/Debit Systems
- •Measurement and Phases of Sleep
- •Age and Sleep
- •Naps and Microsleeps
- •Shift Work
- •Time Zone Crossing
- •Sleep Planning
- •Sleep Hygiene
- •Sleep and Alcohol
- •Sleep Disorders
- •Drugs and Sleep Management
- •Fatigue
- •Vigilance and Hypovigilance
- •Questions
- •Answers
- •12 Individual Differences and Interpersonal Relationships
- •Introduction
- •Personality
- •Interactive Style
- •The Individual’s Contribution within a Group
- •Cohesion
- •Group Decision Making
- •Improving Group Decision Making
- •Leadership
- •The Authority Gradient and Leadership Styles
- •Interacting with Other Agencies
- •Questions
- •Answers
- •13 Communication and Cooperation
- •Introduction
- •A Simple Communications Model
- •Types of Questions
- •Communications Concepts
- •Good Communications
- •Personal Communications
- •Cockpit Communications
- •Professional Languages
- •Metacommunications
- •Briefings
- •Communications to Achieve Coordination
- •Synchronization
- •Synergy in Joint Actions
- •Barriers to Crew Cooperation and Teamwork
- •Good Team Work
- •Summary
- •Miscommunication
- •Questions
- •Answers
- •14 Man and Machine
- •Introduction
- •The Conceptual Model
- •Software
- •Hardware and Automation
- •Intelligent Flight Decks
- •Colour Displays
- •System Active and Latent Failures/Errors
- •System Tolerance
- •Design-induced Errors
- •Questions
- •Answers
- •15 Decision Making and Risk
- •Introduction
- •The Mechanics of Decision Making
- •Standard Operating Procedures
- •Errors, Sources and Limits in the Decision-making Process
- •Personality Traits and Effective Crew Decision Making
- •Judgement Concept
- •Commitment
- •Questions
- •Answers
- •16 Human Factors Incident Reporting
- •Incident Reporting
- •Aeronautical Information Circulars
- •Staines Trident Accident 1972
- •17 Introduction to Crew Resource Management
- •Introduction
- •Communication
- •Hearing Versus Listening
- •Question Types
- •Methods of Communication
- •Communication Styles
- •Overload
- •Situational Awareness and Mental Models
- •Decision Making
- •Personality
- •Where We Focus Our Attention
- •How We Acquire Information
- •How We Make Decisions
- •How People Live
- •Behaviour
- •Modes of Behaviour
- •Team Skill
- •18 Specimen Questions
- •Answers to Specimen Papers
- •Revision Questions
- •Answers to Revision Questions
- •Specimen Examination Paper
- •Answers to Specimen Examination Paper
- •Explanations to Specimen Examination Paper
- •19 Glossary
- •Glossary of Terms
- •20 Index
Introduction to Crew Resource Management
Perceiving
These people like to live in a flexible, spontaneous way.
They:
•are flexible and spontaneous by nature.
•prefer to keep their options open, continuing to gather information.
•seek to understand life rather than control it.
On the flight deck they tend to:
•adapt to changing situations readily.
•be less affected by delays and departures from standard.
•delay making a decision and keep looking for further information.
•review decisions taken.
Behaviour
Although people have a relatively constant personality, it is our behaviour that determines
how others perceive us. It is important to remember that ....
We choose our behaviour!!!
Pilots are constantly meeting fellow crew members (flight deck and rear crew), company and airport representatives and passengers for the first time. A bad first impression can take a lot of time and effort to undo, therefore, make a habit of considering your behaviour before you meet people.
Modes of Behaviour
Remember the modes of behaviour that are available to you:
“Parent, Adult and Child Modes”
Also remember that by staying in “Adult Mode” you can avoid reacting to inappropriate behaviour.
To achieve effective behaviour try to:
•Focus on the outcome of your meeting.
•Listen to each other and use reflective statements to show the “agitated” person that you are listening.
•Talk about the issues, avoid personalities and the word “YOU”.
•Remember that the aim is to achieve mutual understanding.
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Introduction to Crew Resource Management
Feedback
Feedback is defined as “useful information provided for improvement of performance or correction of error”. It not only rests at the centre of a pilot’s training, but continues throughout his / her aviation career. It should also be recognized as a useful life skill. However, people often shy away from giving feedback and feel uncomfortable receiving it. Like many other human factors topics giving and receiving feedback well is a skill which requires thought and practice.
When giving feedback consider:
•WHY are you giving it - ensure that it is to encourage change and develop - not to vent your frustration!
•WHAT are you going to discuss - check the facts and confirm your interpretation/perception of the events.
•HOW you are going to deal with the issues to be raised - ensure that you focus on the issues and not the individual. Look for, and encourage, open but directed discussion.
•WHEN is the most appropriate time - a quiet moment after the flight is sure to be better than when working hard in the air!
When receiving feedback:
•Listen carefully and check your understanding of the problem.
•Try not to be defensive (for everyone has room to learn) and work hard to remain in the “Adult Mode” - focus on the issues for you may “learn something”!
•Acknowledge the giver’s effort for it may have been a difficult decision to come forward and instigate the discussion.
Teamwork
Crew Resource Management aims to improve teamwork through improving human factors skills in all areas. The NASA Team Skills shown on the next pages are particularly related to the multicrew flight deck environment and are used by British Airways in debriefing CRM aspects of LOFT and simulator exercises.
Use your time to improve your CRM skills, reap the benefits of improved learning and remember CRM is fundamentally about flight safety.
Team Skill
Briefing
•sets open tone, call for questions
•team concept (“we”) encourages participation
•covers valid safety and operational issues
•includes cabin crew in team
•states how “SOP” deviations will be handled
•addresses crew roles and division of labour
•sets automation guidelines; PF & PNF duties
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Inquiry, Advocacy and Assertiveness
•crew members speak up with appropriate persistence until there is some resolution
•all are encouraged to state recommendations
•each seeks information, asks questions, and tests assumptions
•flight automation questioned to verify situation
Feedback (Crew Self-critique)
•crew provides information to “self-correct”
•provided at appropriate times
•covers both positive and negative performance
•feedback given tactfully, accepted non-defensively
•blame avoided, what is right - not “who is right”
Communications/Decisions
•participation in decision process encouraged
•“bottom lines” established
•big picture shared with all, including cabin crew and others
•decisions clearly stated and acknowledged
Leadership/Followership/Tasks
•balance between authority and assertiveness
•climate appropriate to situation (e.g. social tasks during low work load, not in high load/ sterile below 10 000 ft !)
•acts decisively when situation requires
•shows desire for most effective operation
•uses all available resources
•recognizes demands imposed by automation
Interpersonal Relations/Climate
•tone of flight deck is friendly, relaxed, supportive
•adapts to other crew members’ personalities
•recognizes effects of stress, fatigue and overload in self and in others
Preparations/Plans/Vigilance
•crew “stays ahead of aircraft”, monitors developments (WX, ATC, TIME, FUEL, ETC.) and anticipates required action
•maintains situational awareness
•“model” of what is happening shared with crew
•ensures cockpit and cabin crew are aware of plans
•conflicts, doubts, “warnings” resolved quickly
•time allowed to programme the automatic systems
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Workload/Avoids Distractions
•work distribution communicated and acknowledged
•crew efficiency is maximised
•reports overload in self and in others
•secondary tasks (passenger needs, company communications, etc.) prioritized to deal with primary flight duties
•recognizes distractions of automation, disengages if necessary
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