8. HUMAN FACTORS

HUMAN PERFORMANCE AND LIMITATIONS
HUMAN FACTORS: BASIC CONCEPTS
Human factors in aviation
Becoming a competent pilot
State that competence is based on knowledge, skills and attitudes of the individual pilot, and list the ICAO eight core competencies:
— application of procedures;
— communication;
— aircraft flight path management, automation;
— aircraft flight path management, manual control;
— leadership and teamwork;
— problem-solving and decision-making;
— situation awareness;
— workload management.
Intentionally left blank
Flight safety concepts
Threat and error management (TEM) model and SHELL model
Explain the three components of the TEM model.
Explain and give examples of latent threats.
Explain and give examples of environmental threats.
Explain and give examples of organisational threats.
Explain and give a definition of ‘error’ according to the TEM model of ICAO Doc 9683 (Part II, Chapter 2).
Give examples of different countermeasures which may be used in order to manage threats, errors, and undesired aircraft states.
Explain and give examples of procedural error, communication errors, and aircraft handling errors.
Explain and give examples of ‘undesired aircraft states’.
State the components of the SHELL model.
State the relevance of the SHELL model to the work in the cockpit.
Safety culture
Safety culture and safety management
Distinguish between ‘open cultures’ and ‘closed cultures’.
Illustrate how safety culture is reflected in national culture.
Discuss the established expression ‘safety first’ in a commercial entity.
Explain James Reason’s ‘Swiss Cheese Model’.
State the important factors that promote a good safety culture.
Distinguish between ‘just culture’ and ‘non-punitive culture’.
Name the five components which form safety culture (according to James Reason: informed culture, reporting culture, learning culture, just culture, flexible culture).
Name the basic concepts of safety management system (SMS) (including hazard identification and risk management) and its relationship with safety culture in order to:
— define how the organisation is set up to manage risks;
— identify workplace risk and implement suitable controls;
— implement effective communication across all levels of the organisation.
BASICS OF AVIATION PHYSIOLOGY AND HEALTH MAINTENANCE
Basics of flight physiology
The atmosphere
State that the volume percentage of the gases in ambient air will remain constant at all altitudes at which conventional aircraft operate.
Respiratory and circulatory system
List the main components of the respiratory system and their function.
Identify the different volumes of air in the lungs and state the normal respiratory rate.
Explain the role of carbon dioxide in the control and regulation of respiration.
Describe the basic processes of external respiration and internal respiration.
List the factors that determine pulse rate.
Name the major components of the circulatory system and describe their function.
State the values for a normal pulse rate and the average cardiac output (heart rate × stroke volume) of an adult at rest.
Define ‘systolic’ and ‘diastolic’ blood pressure.
State the normal blood pressure ranges and units of measurement.
List the main constituents of blood and describe their functions.
Stress the function of haemoglobin in the circulatory system.
Define ‘anaemia’ and state its common causes.
Indicate the effect of increasing altitude on haemoglobin oxygen saturation.
Hypertension and hypotension
Define ‘hypertension’ and ‘hypotension’.
List the effects that high and low blood pressure will have on some normal functions of the human body.
State that both hypotension and hypertension may disqualify a pilot from obtaining medical clearance to fly.
List the factors which can lead to hypertension for an individual.
State the corrective actions that may be taken to reduce high blood pressure.
Stress that hypertension is the major factor of strokes in the general population.
Coronary artery disease
Differentiate between ‘angina’ and ‘heart attack’.
Explain the major risk factors for coronary disease.
State the role physical exercise plays in reducing the chances of developing coronary disease.
Hypoxia
Define the two major forms of hypoxia (hypoxic and anaemic), and the common causes of both.
State the symptoms of hypoxia.
State that healthy people are able to compensate for altitudes up to approximately 10 000–12 000 ft.
Name the three physiological thresholds and allocate the corresponding altitudes for each of them:
— reaction threshold (7 000 ft);
— disturbance threshold (10–12 000 ft); and
— critical threshold (22 000 ft).
State the altitude at which short-term memory begins to be affected by hypoxia.
Define the terms ‘time of useful consciousness’ (TUC) and ‘effective performance time’ (EPT).
State that TUC varies among individuals, but the approximate values for a person seated (at rest) are:
— 20 000 ft 30 min
— 30 000 ft 1–2 min
— 35 000 ft 30–90 s
— 40 000 ft 15–20 s
List the factors that determine the severity of hypoxia.
State the equivalent altitudes when breathing ambient air and 100 % oxygen at mean sea level (MSL) and at approximately 10 000, 30 000 and 40 000 ft.
Hyperventilation
Describe the role of carbon dioxide in hyperventilation.
Define the term ‘hyperventilation’.
List the factors that cause hyperventilation.
State that hyperventilation may be caused by psychological or physiological reasons.
List the signs and symptoms of hyperventilation.
List the measures which may be taken to counteract hyperventilation: breath slowly, close one opening of the nose, speak loudly, place a paper bag over nose and mouth.
Decompression sickness/illness
State the normal range of cabin pressure altitude in pressurised commercial air transport aircraft and describe its protective function for aircrew and passengers.
List the vital actions the crew has to perform when cabin pressurisation is lost (oxygen mask on, emergency descent, land as soon as possible, and no further flight for the next minimum 24 hours). State that decompression sickness symptoms can occur up to 24 hours later.
Identify the causes of decompression sickness in flight operation.
State how decompression sickness can be prevented.
List the symptoms of decompression sickness (bends, creeps, chokes, staggers).
Indicate how decompression sickness may be treated.
Define the hazards of diving and flying, and give the recommendations associated with these activities.
Acceleration
Define ‘linear acceleration’ and ‘angular acceleration’.
Describe the effects of z-acceleration on the circulation and blood volume distribution.
List magnitude, duration and onset as factors that determine the effects of acceleration on the human body.
List the effects of positive acceleration with respect to type, sequence and corresponding G-load.
Carbon monoxide
State how carbon monoxide is produced.
State how the presence of carbon monoxide in the blood affects the distribution of oxygen.
List the signs and symptoms of carbon-monoxide poisoning.
Explain immediate countermeasures on suspicion of carbon-monoxide poisoning and how poisoning can be treated later on the ground.
High-altitude environment
State how an increase in altitude may change the proportion of ozone in the atmosphere and that aircraft can be equipped with special ozone removers.
Radiation
State the sources of radiation at high altitude.
List the effects of excessive exposure to radiation.
Humidity
List the factors that affect the relative humidity of both the atmosphere and cabin air.
List the effects of low humidity on human body to be spurious thirst, dry eyes, skin and mucous membranes, and indicate measures that can be taken: drinking water, using eye drops and aqueous creams.
People and the environment: the sensory system
The different senses
List the different senses.
Central, peripheral and autonomic nervous system
Define the term ‘sensory threshold’.
Define the term ‘sensitivity’, especially in the context of vision.
Give examples of sensory adaptation.
Define the term ‘habituation’ and state its implication for flight safety.
Vision
Functional anatomy
Name the most important parts of the eye and the pathway to the visual cortex.
State the basic functions of the parts of the eye.
Define ‘accommodation’.
Distinguish between the functions of the rod and cone cells.
Describe the distribution of rod and cone cells in the retina and explain their relevance to vision.
The fovea (fovea centralis) and peripheral vision
Explain the terms ‘visual acuity’, ‘visual field’, ‘central vision’, ‘peripheral vision’ and ‘the fovea’, and explain their function in the process of vision.
List the factors that may degrade visual acuity and the importance of ‘lookout’.
State the limitations of night vision and the different scanning techniques at both night and day.
State the time necessary for the eye to adapt both to bright light and the dark.
State the effect of hypoxia, smoking and altitude in excess of 5 000 ft on night vision.
Explain the nature of colour blindness.
Binocular and monocular vision
Distinguish between monocular and binocular vision.
Explain the basis of depth perception and its relevance to flight performance.
List the possible monocular cues for depth perception.
State that for high-energy blue light and UV rays, sunglasses can prevent damage to the retina.
Defective vision
Explain long-sightedness, short-sightedness and astigmatism.
List the causes of and the precautions that may be taken to reduce the probability of vision loss due to:
— presbyopia;
— cataract;
— glaucoma.
List the types of sunglasses that could cause perceptional problems in flight.
List the measures that may be taken to protect oneself from flash blindness.
State the possible problems associated with contact lenses.
State the current rules/regulations governing the wearing of corrective spectacles and contact lenses when operating as a pilot.
Explain the significance of the ‘blind spot’ on the retina in detecting other traffic in flight.
Hearing
Descriptive and functional anatomy
State the basic parts and functions of the outer, the middle and the inner ear.
Differentiate between the functions of the vestibular apparatus and the cochlea in the inner ear.
Hearing loss
Define the main causes of the following hearing defects/loss:
— ‘conductive deafness’;
— ‘noise-induced hearing loss’ (NIHL);
— ‘presbycusis’.
Summarise the effects of environmental noise on hearing.
State the decibel level of received noise that will cause NIHL.
Identify the potential occupational risks that may cause hearing loss.
List the main sources of hearing loss in the flying environment.
List the precautions that may be taken to reduce the probability of onset of hearing loss.
Equilibrium
Functional anatomy
List the main elements of the vestibular apparatus.
State the functions of the vestibular apparatus on the ground and in flight.
Distinguish between the component parts of the vestibular apparatus in the detection of linear and angular acceleration as well as on gravity.
Explain how the semicircular canals are stimulated.
Motion sickness
Describe air sickness and its accompanying symptoms.
List the causes of air sickness.
Describe the necessary actions to be taken to counteract the symptoms of air sickness.
Integration of sensory inputs
State the interaction between vision, equilibrium, proprioception and hearing to obtain spatial orientation in flight.
Define the term ‘illusion’.
Give examples of visual illusions based on shape constancy, size constancy, aerial perspective, atmospheric perspective, the absence of focal or ambient cues, autokinesis, vectional false horizons, field myopia, and surface planes.
Relate these illusions to problems that may be experienced in flight and identify the danger attached to them.
List approach and landing illusions for slope of the runway, black-hole approach, and terrain around runway, and state the danger involved with recommendations to avoid or counteract the problems with high or low approach or flare at the wrong time.
State the problems associated with flickering lights (strobe lights, anti-collision lights, propellers and rotors under certain light conditions, etc.).
Describe vestibular illusions caused by the angular accelerations (the Leans, Coriolis) and linear accelerations (somatogravic, G-effect).
Relate the above-mentioned vestibular illusions to problems encountered in flight and state the dangers involved.
State that the ‘seat-of-the-pants’ sense is completely unreliable when visual contact with the ground is lost or when flying in instrument meteorological conditions (IMC) or with a poor visual horizon.
Differentiate between vertigo, Coriolis effect, and spatial disorientation.
List the measures to prevent or overcome spatial disorientation.
Health and hygiene
Intentionally left blank
Body rhythm and sleep
Name some internal body rhythms and their relevance to sleep. Explain that the most important of which is body temperature.
Explain the term ‘circadian rhythm’.
State the approximate duration of a ‘free-running’ rhythm.
Explain the significance of the ‘internal clock’ in regulating the normal circadian rhythm.
State the effect of the circadian rhythm of body temperature on an individual’s performance standard and on an individual’s sleep patterns.
List and describe the stages of a sleep cycle.
Differentiate between rapid eye movement (REM) and non-REM sleep.
Explain the function of sleep and describe the effects of insufficient sleep on performance.
Explain the simple calculations for the sleep/wake credit/debit situation.
Explain how sleep debit can become cumulative.
State the time formula for the adjustment of body rhythms to the new local time scale after crossing time zones.
State the problems caused by circadian disrhythmia (jet lag) with regard to an individual’s performance and sleep.
Differentiate between the effects of westbound and eastbound travel.
Explain the interactive effects of circadian rhythm and vigilance on a pilot’s performance during flight as the duty day elapses.
Describe the main effects of lack of sleep on an individual’s performance.
List the possible strategies to cope with jet lag.
Problem areas for pilots
Common minor ailments
State the role of the Eustachian tube in equalising pressure between the middle ear and the environment.
State that the in-flight environment may increase the severity of symptoms which may be minor while on the ground.
List the negative effects of suffering from colds or flu on flight operations especially with regard to the middle ear, the sinuses, and the teeth.
State when a pilot should seek medical advice from an aeromedical examiner (AME) or aeromedical centre (AeMC).
Describe the measures to prevent or clear problems due to pressure changes during flight.
Entrapped gases and barotrauma
Define ‘barotrauma’.
Differentiate between otic, sinus, gastrointestinal and aerodontalgia (of the teeth) barotraumas and explain avoidance strategies.
Explain why the effects of otic barotrauma can be worse in the descent.
Gastrointestinal upsets
State the effects of gastrointestinal upsets that may occur during flight.
List the precautions that should be observed to reduce the occurrence of gastrointestinal upsets.
Indicate the major sources of gastrointestinal upsets.
Obesity
Define ‘obesity’.
State the following harmful effects obesity can cause:
— possibility of developing coronary problems;
— increased chances of developing diabetes;
— reduced ability to withstand G-forces;
— development of problems with the joints of the limbs;
— general circulatory problems;
— reduced ability to cope with hypoxia or decompression sickness;
— sleep apnoea.
Describe the problems associated with Type 2 (mostly adult) diabetes:
— risk factors;
— insulin resistance;
— complications (vascular, neurological) and the consequences for the medical licence;
— pilots are not protected from Type 2 diabetes more than other people.
Describe the typical back problems (unspecific back pain, slipped disc) that pilots have. Explain also the ways of preventing and treating these problems:
— good sitting posture;
— lumbar support;
— good physical condition;
— in-flight exercise, if possible;
— physiotherapy.
Food hygiene
Stress the importance of and methods to be adopted by aircrew, especially when travelling abroad, to avoid contaminated food and liquids.
List the major contaminating sources in foodstuffs.
State the major constituents of a healthy diet.
State the measure to avoid hypoglycaemia.
State the importance of adequate hydration.
Tropical climates
List the problems associated with operating in tropical climates.
State the possible causes/sources of incapacitation in tropical countries with reference to:
— standards of hygiene;
— quality of water supply;
— insect-borne diseases;
— parasitic worms;
— rabies or other diseases that may be spread through contact with animals;
— sexually transmitted diseases.
State the precautions to be taken to reduce the risks of developing problems in tropical areas.
Infectious diseases
State the major infectious diseases that may severely incapacitate or kill individuals.
State the precautions that must be taken to ensure that disease-carrying insects are not transported between areas.
Intoxication
Tobacco
State the harmful effects of tobacco on:
— the respiratory system;
— the cardiovascular system;
— the ability to resist hypoxia;
— the ability to withstand G-forces;
— night vision.
Caffeine
Indicate the level of caffeine dosage at which performance is degraded.
Besides coffee, indicate other beverages containing caffeine.
Alcohol
State the maximum acceptable limit of alcohol for flight crew according to the applicable regulations.
State the effects of alcohol consumption on:
— the ability to reason;
— inhibitions and self-control;
— vision;
— the sense of balance and sensory illusions;
— sleep patterns;
— hypoxia.
State the effects alcohol may have if consumed together with other drugs.
List the signs and symptoms of alcoholism.
List the factors that may be associated with the development of alcoholism.
Define the ‘unit’ of alcohol and state the approximate elimination rate from the blood.
State the maximum daily and weekly intake of units of alcohol which may be consumed without causing damage to the organs and systems of the human body.
Discuss the actions that might be taken if a crew member is suspected of being an alcoholic.
Prescription and non-prescription drugs and self‑medication
State the dangers associated with the use of non‑prescription drugs.
State the side effects of common non-prescription drugs used to treat colds, flu, hay fever and other allergies, especially medicines containing antihistamine preparations.
Interpret the rules relevant to using (prescription or non-prescription) drugs that the pilot has not used before.
Interpret the general rule that ‘if a pilot is so unwell that they require any medication, then they should consider themselves unfit to fly’.
Toxic materials
List those materials present in an aircraft which may, when uncontained, cause severe health problems.
List those aircraft-component parts which if burnt may give off toxic fumes.
Describe a fume event and the possible incapacitating effects on those exposed to it.
Incapacitation in flight
State that incapacitation is most dangerous when its onset is insidious.
List the major causes of in-flight incapacitation.
State the importance of crew to be able to recognise and promptly react upon incapacitation of other crew members, should it occur in flight.
Explain methods and procedures to cope with incapacitation in flight.
BASIC AVIATION PSYCHOLOGY
Human information processing
Attention and vigilance
Differentiate between ‘attention’ and ‘vigilance’.
Differentiate between ‘selective’ and ‘divided’ attention.
Define ‘hypovigilance’.
Identify the factors that may affect the state of vigilance.
List the factors that may forestall hypovigilance during flight.
Indicate the signs of reduced vigilance.
List the factors that affect a person’s level of attention.
Perception
Name the basis of the perceptual process.
Describe the mechanism of perception (‘bottom‑up’/‘top-down’ process).
Illustrate why perception is subjective and state the relevant factors that influence interpretation of perceived information.
Describe some basic perceptual illusions.
Illustrate some basic perceptual concepts.
Give examples where perception plays a decisive role in flight safety.
Stress how persuasive and believable mistaken perception can manifest itself both for an individual and a group.
Memory
Explain the link between the types of memory (to include sensory, working/short-term and long-term memory).
Describe the differences between the types of memory in terms of capacity and retention time.
Justify the importance of sensory-store memories in processing information.
State the average maximum number of separate items that may be held in working memory (5 ± 2).
Stress how interruption can affect short‑term/working memory.
Give examples of items that are important for pilots to hold in working memory during flight.
Describe how the capacity of the working-memory store may be increased.
State the subdivisions of long-term memory and give examples of their content.
Explain that skills are kept primarily in the long-term memory.
Describe amnesia and how it affects memory.
Name the common problems with both the long- and short-term memories and the best methods to try to counteract them.
Response selection
Learning principles and techniques
Explain and distinguish between the following basic forms of learning:
— classic and operant conditioning (behaviouristic approach);
— learning by insight (cognitive approach);
— learning by imitating (modelling).
Recognise pilot-related examples as behaviouristic, cognitive or modelling forms of learning.
State the factors that are necessary for and promote the quality of learning:
— intrinsic motivation;
— good mental health;
— rehearsals for improvement of memory;
— consciousness;
— vigilance;
— application in practical exercises.
Explain ways to facilitate the memorisation of information with the following learning techniques:
— mnemonics;
— mental training.
Describe the advantage of planning and anticipation of future actions:
— define the term ‘skills’;
— state the three phases of learning a skill (Anderson: cognitive, associative and autonomous phase).
Explain the term ‘motor programme’ or ‘mental schema’.
Describe the advantages and disadvantages of mental schemas.
Explain the Rasmussen model which describes the guidance of a pilot’s behaviour in different situations.
State the possible problems or risks associated with skill-, rule- and knowledge-based behaviour.
Motivation
Define ‘motivation’.
Explain the relationship between motivation and learning.
Explain the problems of over-motivation, especially in the context of the extreme need to achieve.
Human error and reliability
Reliability of human behaviour
Name and explain the factors that influence human reliability.
Mental models and situation awareness
Define the term ‘situation awareness’.
List the cues that indicate loss of situation awareness and name the steps to regain it.
List the factors that influence one’s situation awareness both positively and negatively, and stress the importance of situation awareness in the context of flight safety.
Define the term ‘mental model’ in relation to a surrounding complex situation.
Describe the advantages/disadvantages of mental models.
Explain the relationship between personal ‘mental models’ and the creation of cognitive illusions.
Theory and model of human error
Explain the concept of the ‘error chain’.
Differentiate between an isolated error and an error chain.
Distinguish between the main forms/types of errors (i.e. slips, faults, omissions and violations).
Discuss the above errors and their relevance in flight.
Distinguish between an active and a latent error, and give examples.
Error generation
Distinguish between internal and external factors in error generation.
Identify possible sources of internal error generation.
Define and discuss the two errors associated with motor programmes (action slip and environmental capture).
List the three main sources of external error generation in the flight crew compartment.
Give examples to illustrate the following factors in external error generation in the flight crew compartment:
— ergonomics;
— economics;
— social environment.
Name the major goals in the design of human‑centred human–machine interfaces.
Define the term ‘error tolerance’.
List and describe the strategies that are used to reduce human error.
Describe the advantage of planning and the anticipation of future actions.
Decision-making
Decision-making concepts
Define the terms ‘deciding’ and ‘decision-making’.
Describe the major factors on which decision-making should be based during the course of a flight.
Describe the main human attributes with regard to decision-making.
Discuss the nature of bias and its influence on the decision-making process.
Describe the main error sources and limits in an individual’s decision-making mechanism.
State the factors upon which an individual’s risk assessment is based.
Explain the relationship between risk assessment, commitment and pressure of time in decision‑making strategies.
Explain the risks associated with dispersion or channelised attention during the application of procedures requiring a high workload within a short time frame (e.g. a go-around).
Describe the positive and negative influences exerted by other group members on an individual’s decision-making process (risky shift).
Explain the general idea behind the creation of a model for decision-making based upon:
— definition of the aim;
— collection of information;
— risk assessment;
— development of options;
— evaluation of options;
— decision;
— implementation;
— consequences;
— review and feedback.
Avoiding and managing errors: cockpit management
Safety awareness
Justify the need for being aware of not only one’s own performance but that of others before and during a flight and the possible consequences or risks.
Coordination (multi-crew concepts)
Name the objectives of the multi-crew concept.
State and explain the elements of multi-crew concepts.
Describe the concepts of ‘standard operating procedures’ (SOPs), checklists and crew briefings.
Describe the purpose of and procedure for crew briefings.
Describe the purpose of and procedure for checklists.
Describe the function of communication in a coordinated team.
Explain the advantages of SOPs.
Explain how SOPs contribute to avoiding, reducing and managing threats and errors.
Explain potential threats of SOPs, for example during company or type conversion (e.g. motor programmes, company culture, hazardous attitudes, developed habits).
Cooperation
Distinguish between cooperation and coaction.
Define the term ‘group’.
Illustrate the influence of interdependence in a group.
List the advantages and disadvantages of teamwork.
Explain the term ‘synergy’.
Define the term ‘cohesion’.
Define the term ‘groupthink’.
State the essential conditions for good teamwork.
Explain the function of role and norm in a group.
Name the different role patterns which occur in a group situation.
Explain how behaviour can be affected by the following factors:
— persuasion;
— conformity;
— compliance;
— obedience.
Distinguish between status and role.
Stress the inherent dangers of a situation where there is a mix of role and status within the flight crew compartment.
Explain the terms ‘leadership’ and ‘followership’.
Describe the trans-cockpit authority gradient and its affiliated leadership styles (i.e. autocratic, laissez‑faire and synergistic).
Name the most important attributes of a positive leadership style.
Communication
Define the term ‘communication’.
List the most basic components of interpersonal communication.
Explain the advantages of in-person two-way communication as opposed to one-way communication.
Intentionally left blank
Name the importance of non-verbal communication.
Describe the general aspects of non-verbal communication.
Describe the advantages/disadvantages of implicit and explicit communication.
Describe the advantages and possible problems of using ‘social’ and ‘professional’ language in high‑and low-workload situations.
Name and explain the major obstacles to effective communication.
Explain the difference between intrapersonal and interpersonal conflict.
Describe the escalation process in human conflict.
List the typical consequences of conflicts between crew members.
Explain the following terms as part of the communication practice with regard to preventing or resolving conflicts:
— inquiry;
— active listening;
— advocacy;
— feedback;
— metacommunication;
— negotiation.
Describe the limitations of communication in situations of high workload in the flight crew compartment in view of listening, verbal, non‑verbal and visual effects.
Human behaviour
Personality, attitude and behaviour
Describe the factors that determine an individual’s behaviour.
Define and distinguish between ‘personality’, ‘attitude’ and ‘behaviour’.
State the origin of personality and attitude.
State that with behaviour good and bad habits can be formed.
Explain how behaviour is generally a product of personality, attitude and the environment to which one was exposed at significant moments (childhood, schooling and training).
State that personality differences and selfish attitude may have effects on flight crew performance.
Individual differences in personality and motivation
Describe the individual differences in personality by means of a common trait model (e.g. Eysenck’s personality factors) and use it to describe today’s ideal pilot.
Self-concept
Define the term ‘self-concept’ and the role it plays in any change of personality.
Explain how a self-concept of under-confidence may lead to an outward show of aggression and self- assertiveness.
Self-discipline
Define ‘self-discipline’ and justify its importance for flight safety.
Identification of hazardous attitudes (error proneness)
Explain dangerous attitudes in aviation:
— anti-authority;
— macho;
— impulsivity;
— invulnerability;
— complacency;
— resignation.
Describe the personality, attitude and behaviour patterns of an ideal crew member.
Summarise how a person’s attitude influences their work in the flight crew compartment.
Human overload and underload
Arousal
Explain the term ‘arousal’.
Describe the relationship between arousal and performance.
Explain the circumstances under which underload may occur and its possible dangers.
Stress
Explain the term ‘stress’ and why stress is a natural human reaction.
State that the physiological response to stress is generated by the ‘fight or flight’ response.
Describe the function of the autonomic nervous system (ANS) in stress response.
Explain the relationship between arousal and stress.
State the relationship between stress and performance.
State the basic categories of stressors.
List and discuss the major environmental sources of stress in the flight crew compartment.
Discuss the concept of ‘break point’ with regard to stress, overload and performance.
Name the principal causes of domestic stress.
State that the stress experienced as a result of particular demands varies among individuals.
Explain the factors that lead to differences in the levels of stress experienced by individuals.
List the factors that influence the tolerance of stressors.
State that stress is a result of perceived demands and perceived ability.
Explain the relationship between stress and anxiety.
Describe the effects of anxiety on human performance.
State the general effect of acute stress on people.
Describe the relationship between stress, arousal and vigilance.
State the general effect of chronic stress and the biological reaction by means of the three stages of the general adaptation syndrome (Selye): alarm, resistance, and exhaustion.
Explain the differences between psychological, psychosomatic and somatic stress reactions.
Name the typical common physiological and psychological symptoms of human overload.
Describe the effects of stress on human behaviour.
Explain how stress is cumulative and how stress from one situation can be transferred to a different situation.
Explain how successful completion of a stressful task will reduce the amount of stress experienced when a similar situation arises in the future.
Describe the effect of human underload/overload on effectiveness in the flight crew compartment.
List sources and symptoms of human underload.
Intentionally left blank
Intentionally left blank
Fatigue and stress management
Explain the term ‘fatigue’ and differentiate between the two types of fatigue (short-term and chronic fatigue).
Name the causes of short-term and chronic fatigue.
Identify the symptoms and describe the effects of fatigue.
List the strategies that prevent or delay the onset of fatigue and hypovigilance.
List and describe strategies for coping with stress factors and stress reactions.
Distinguish between short-term and long-term methods of stress management.
Give examples of short-term methods of stress management.
Give examples of long-term methods of coping with stress.
Describe the fatigue risk management system (FRMS) as follows: a data-driven means of continuously monitoring and managing fatigue‑related safety risks, based upon scientific principles and knowledge as well as operational experience that aims to ensure relevant personnel are performing at adequate levels of alertness.
Advanced cockpit automation
Advantages and disadvantages
Compare the two basic concepts of automation:
— as per Boeing, where the pilot remains the last operator;
— and as per Airbus, where automated systems can correct erroneous pilot action.
Explain the fundamental restrictions of autoflight systems to be lack of creativity in unknown situations, and lack of personal motivation with regard to safety.
List the principal strengths and weaknesses of pilot versus autopilot systems to be creativity, decision‑making, prioritisation of tasks, safety attitude versus precision, reliability.
Explain the ‘ironies of automation’: designers’ errors due to wrong interpretation of the data, leaving tasks to the pilot that are too complex to automate, loss of manual and cognitive skills of the pilot.
State the necessity for regular training flights as one possible countermeasure.
Describe methods to overcome the drawbacks of autoflight systems to be loss of manual flying capabilities, additional workload through programming, risk of slips during programming, and hypovigilance during cruise.
Automation complacency
State the main weaknesses in the monitoring of automatic systems to be hypovigilance during flight, and loss of flying skills.
Explain some basic flight crew errors and terms that arise with the introduction of automation:
— passive monitoring;
— blinkered concentration;
— confusion;
— mode awareness.
Explain how the method of call-outs counteracts ineffective monitoring of automatic systems.
Define ‘complacency’.
Working concepts
Explain that the potential disadvantages of automation on crew communication are loss of awareness of input errors, flight modes, failure detection, failure comprehension, status of the aircraft and aircraft position.
Explain how the negative effects of automation on pilots may be alleviated by degrading to a lower level of automation to recover comprehension of the flight status from VNAV/LNAV to ALT/HDG or even to manual flying.
Interpret the role of automation with respect to flight safety regarding the basic principle of the use of manual versus autoflight in normal operations, frequent changes in the flight profile, and in abnormal situations.

Leave a Reply

Your email address will not be published.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.