Pilot Ground Knowledge - Instrument > Human Factor > Flashcards

Human Factor Flashcards

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1
Q

What are human factors in aviation?

A

The study of how humans interact with aircraft systems, procedures, and the environment, aiming to improve safety, performance, and decision-making.

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2
Q

Why are human factors critical in IFR flight?

A

IFR flight relies heavily on instrument interpretation, decision-making, and ATC communication, where human error can lead to accidents.

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3
Q

What is situational awareness?

A

The perception of the aircraft’s position, attitude, speed, and the external environment, including traffic and weather, to make informed decisions.

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4
Q

How does situational awareness affect IFR operations?

A

Poor situational awareness can lead to controlled flight into terrain (CFIT), airspace violations, or loss of separation.

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5
Q

What is cockpit resource management (CRM)?

A

The effective use of all available resources—human, hardware, and information—to ensure safe and efficient flight operations.

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6
Q

How does single-pilot resource management (SRM) apply in IFR?

A

Pilots prioritize tasks, manage workload, and use automation and ATC resources to safely conduct IFR operations alone.

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7
Q

What is the impact of stress on IFR performance?

A

Stress can impair decision-making, attention, memory, and task management, increasing the risk of errors.

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8
Q

How can fatigue affect IFR flight?

A

Fatigue reduces cognitive function, reaction time, and situational awareness, increasing the likelihood of navigation or procedural errors.

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9
Q

What is spatial disorientation?

A

The inability of a pilot to correctly perceive the aircraft’s attitude, altitude, or motion relative to the Earth, often caused by conflicting sensory inputs.

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10
Q

How can spatial disorientation be mitigated?

A

Relying on instruments, maintaining instrument scan discipline, and trusting the flight instruments over bodily sensations.

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11
Q

What is the primary cause of visual illusions in IFR flight?

A

Limited or misleading visual references, especially in low visibility, night, or featureless terrain conditions.

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12
Q

What is a somatogravic illusion?

A

A false sensation of pitch up or down during rapid acceleration or deceleration, leading to improper control inputs.

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13
Q

What is the leans in aviation?

A

A sensation of bank due to gradual roll that is not sensed by the vestibular system, potentially causing improper attitude corrections.

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14
Q

What is the graveyard spiral?

A

A type of spatial disorientation where a pilot in a prolonged, unnoticed bank increases back pressure, resulting in a descending spiral.

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15
Q

What is hypoxia and its effect on IFR pilots?

A

Oxygen deficiency at altitude that impairs judgment, coordination, and cognitive function; can occur above 10,000 ft without supplemental oxygen.

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16
Q

How can hypoxia be prevented in IFR operations?

A

Use supplemental oxygen above 12,500 ft MSL for flights over 30 minutes and continuously above 14,000 ft MSL.

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17
Q

What is the importance of stress management in IFR flight?

A

Reduces cognitive overload, improves decision-making, and prevents task saturation during high workload situations.

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18
Q

What is task saturation in IFR flying?

A

When the pilot has too many simultaneous tasks, leading to missed procedures, navigation errors, or loss of situational awareness.

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19
Q

How does automation affect human factors in IFR flight?

A

Proper use reduces workload and improves accuracy; misuse or over-reliance can lead to complacency or loss of manual proficiency.

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20
Q

What is mode awareness in automated flight?

A

Understanding the current state, mode, and behavior of automated systems like autopilot and flight director to prevent unexpected aircraft actions.

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21
Q

What is the importance of scan technique in IFR flight?

A

A proper instrument scan ensures all critical flight parameters are monitored to maintain control and situational awareness.

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22
Q

What is the “primary instrument” concept in IFR scanning?

A

Focusing on the instrument that provides the most direct information for maintaining the desired attitude, typically the attitude indicator.

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23
Q

What is the role of fatigue management in human factors?

A

Planning adequate rest, limiting duty periods, and recognizing signs of fatigue to maintain cognitive function during IFR operations.

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24
Q

What is complacency and its risk in IFR operations?

A

Overconfidence or routine behavior can lead to lapses in monitoring instruments, cross-checking charts, or following procedures.

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25
How does workload management improve IFR safety?
Prioritizing tasks, delegating when possible, and pacing actions to prevent errors during high-demand phases of flight.
26
What is the effect of stress on instrument interpretation?
Can lead to fixation, misreading instruments, delayed decision-making, or ignoring critical warnings.
27
What is visual-vestibular conflict?
A situation where visual and inner ear senses provide conflicting information, often leading to spatial disorientation.
28
How can single-pilot IFR mitigate human factor risks?
Using checklists, automation, effective task prioritization, situational awareness, and communication with ATC.
29
What is a mental model in aviation?
A pilot’s internal understanding of the aircraft, systems, and environment used to anticipate and respond to changing situations.
30
How does workload increase during approach and landing under IFR?
Increased tasks include navigation, ATC communication, configuration changes, altitude/airspeed control, and monitoring for obstacles.
31
What are common human factor errors during missed approaches?
Failure to execute procedures correctly, improper altitude or heading, loss of situational awareness, and confusion with ATC instructions.
32
What is decision-making under IFR?
Evaluating information, assessing risks, and selecting the safest course of action, including go/no-go and missed approach decisions.
33
How does situational awareness degrade under high workload?
Pilots may miss ATC instructions, fail to monitor instruments, or misinterpret navigation data.
34
What is the impact of sensory illusions during night IFR flight?
Reduced visual references can lead to false perceptions of attitude, altitude, or motion, requiring reliance on instruments.
35
How can pilots mitigate human factor risks during automation failure?
Maintain proficiency in hand-flying, cross-check instruments, revert to known procedures, and communicate with ATC.
36
What are physiological factors affecting IFR pilots?
Fatigue, hypoxia, dehydration, illness, stress, and sensory illusions—all impacting performance and decision-making.
37
What is the role of human factors in accident prevention?
Understanding limitations, managing workload, maintaining situational awareness, and applying decision-making strategies reduce error risk.
38
What is situational overload, and how does it occur in IFR operations?
A state where task demands exceed the pilot’s capacity, often during complex approaches, ATC communication, or system failures.
39
What is the difference between cognitive and perceptual human factor errors?
Cognitive: decision-making or judgment errors. Perceptual: misinterpretation of sensory information, such as illusions or spatial disorientation.
40
What is the impact of startle and surprise in IFR emergencies?
Rapid, unexpected events can trigger reflexive reactions, degrading decision-making and instrument scanning.
41
What is attentional tunneling?
Focusing too narrowly on one instrument or task, leading to neglect of other critical instruments or flight conditions.
42
How can pilots avoid attentional tunneling during IFR flight?
Use a disciplined instrument scan, cross-check automation modes, and periodically assess the overall situation.
43
What is the role of memory in IFR human factors?
Pilots must recall procedures, clearances, checklists, and navigation data accurately under workload and stress.
44
How does stress affect short-term and long-term memory in IFR flight?
Short-term: forgetting recent instructions or waypoint fixes. Long-term: difficulty recalling emergency or procedure training.
45
What is startle effect management in IFR?
Training to respond calmly, focus on primary flight instruments, and use standard operating procedures during unexpected events.
46
What is the effect of complacency on IFR instrument scanning?
Reduced attention to cross-checking instruments and monitoring automation, increasing risk of deviation from assigned flight paths.
47
What is the relationship between automation reliance and manual flying skills?
Over-reliance can degrade hand-flying proficiency; pilots must practice manual control to maintain competence.
48
How can fatigue influence decision-making under IFR?
Increases reaction time, reduces risk assessment ability, and may lead to procedural errors during critical phases of flight.
49
What is the “startle and freeze” phenomenon?
Momentary inaction or confusion in response to unexpected events, potentially delaying correct responses in IFR emergencies.
50
How can single-pilot IFR mitigate human factor risks during high workload?
Prioritize tasks, use automation effectively, brief procedures in advance, and communicate clearly with ATC.
51
What is error chain theory in aviation safety?
Accidents result from a sequence of errors, where human factor errors accumulate until an undesired outcome occurs.
52
How does task management affect missed approach execution?
Proper sequencing ensures correct navigation, configuration, communication, and altitude assignments under pressure.
53
What are the effects of sensory illusions during IMC?
False perceptions of motion, attitude, or altitude that can lead to inappropriate control inputs if instruments are ignored.
54
What is the significance of vigilance in IFR operations?
Continuous monitoring of instruments, ATC communications, and automation to detect deviations or anomalies promptly.
55
What is proactive decision-making in IFR flight?
Anticipating potential problems and taking timely actions to maintain safety and prevent emergency situations.
56
How does automation mode confusion occur?
When the pilot misinterprets the current mode or behavior of the autopilot/FMS, leading to unexpected aircraft responses.
57
What is the importance of a mental picture or mental model in IFR?
Helps pilots anticipate aircraft position, route, obstacles, and ATC instructions for proactive decision-making.
58
What is cognitive tunneling and its hazard in IFR?
Focusing on one task at the expense of others, potentially missing altitude deviations, traffic, or ATC instructions.
59
How can pilots prevent cognitive tunneling in complex IFR approaches?
Use a structured instrument scan, cross-check altitudes, and verify navigation inputs continuously.
60
What is risk management in IFR human factors?
Identifying, assessing, and mitigating hazards such as weather, workload, automation failure, or pilot fatigue.
61
How does communication affect human factors in IFR?
Clear, concise communication with ATC and crew reduces errors, improves situational awareness, and prevents misinterpretation.
62
What is the role of cockpit automation in reducing workload?
Assists with navigation, altitude, and speed control, allowing the pilot to focus on monitoring, decision-making, and situational awareness.
63
What is cognitive overload in IFR flight?
When the pilot’s mental capacity is exceeded, leading to mistakes in navigation, procedure execution, or ATC compliance.
64
What is the importance of briefings in IFR human factors?
Preflight, departure, approach, and missed approach briefings ensure pilots anticipate tasks, altitudes, and procedures.
65
How do human factors affect emergency procedures in IFR?
Effective workload management, prioritization, and procedural knowledge reduce stress-induced errors during critical situations.
66
What is the impact of decision fatigue on IFR operations?
Repeated decisions over time can degrade judgment, increase error likelihood, and slow reaction to dynamic situations.
67
How can single-pilot IFR mitigate startle and surprise effects?
Maintain proficiency, practice scenario-based training, and apply checklist discipline to maintain control under unexpected events.
68
What is threat and error management (TEM) in IFR?
A framework to identify operational threats, anticipate errors, and implement recovery or mitigation strategies before they affect safety.
69
How does situational awareness influence missed approach success?
Awareness of aircraft position, altitude, navigation, and terrain ensures safe execution of the missed approach procedure.
70
How can checklists improve human factor performance in IFR?
Provide structured task sequencing, reduce reliance on memory, and prevent omission of critical procedures.
71
What are some indicators of fatigue or overload in IFR pilots?
Slowed reaction time, missed callouts, skipped checklist items, disorganized instrument scanning, and reduced situational awareness.
72
How does stress interact with fatigue in human factors?
Combined effects exacerbate workload limitations, impair cognitive function, and increase the risk of errors.
73
What is the effect of high workload on decision-making under IFR?
Can cause delayed responses, prioritization errors, or task saturation, potentially leading to unsafe flight situations.
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