Understanding the People Risks Behind Safe Drone Operations
Most Safety Issues Start With People, Not Aircraft
When operators think about safety, they often focus on:
- aircraft performance
- equipment reliability
- battery management
- weather and airspace
These all matter.
However, many operational failures begin somewhere else:
Human factors
Human factors are the physical, mental, and organisational influences that affect how people perform.
For RPAS operators, this includes:
- judgement
- communication
- fatigue
- distraction
- workload
- supervision
- decision-making
A professional operation must actively manage these risks.
What Are Human Factors?
Human factors are the influences that affect a person’s ability to perform safely and effectively.
In RPAS operations, this means understanding how people can be affected by:
- stress
- fatigue
- illness
- pressure
- distraction
- poor communication
- weak procedures
- organisational culture
Human factors are not just about pilot error.
They are about:
why people make mistakes, and how operations can be designed to reduce the likelihood and consequences of those mistakes
Why Human Factors Matter in RPAS Operations
RPAS operations often appear lower risk than crewed aviation.
That assumption can create complacency.
In reality, RPAS operations still involve:
- aviation decision-making
- airspace awareness
- operational approvals
- time pressure
- equipment limitations
- interaction with other people and systems
When human factors are not managed, the result is often:
- poor judgement
- procedural drift
- missed hazards
- communication breakdown
- unsafe normalisation of shortcuts
Common Human Factors in RPAS Operations
Fatigue
Fatigue affects:
- concentration
- situational awareness
- reaction time
- decision-making
Fatigue is not limited to long shifts.
It can also result from:
- poor sleep
- early starts
- travel
- heat
- repetitive operations
- high cognitive workload
A tired operator is more likely to:
- miss hazards
- skip checks
- make poor decisions
Distraction
RPAS operations are easily disrupted by distraction.
Sources of distraction may include:
- phone calls
- spectators
- client interaction
- changing weather
- crew interruptions
- software and alerts
Distraction affects the operator’s ability to:
- maintain control
- monitor the environment
- follow procedures correctly
Complacency
Complacency often appears when:
- the same task is repeated frequently
- the operator becomes overconfident
- previous operations have gone well
This can lead to:
- reduced attention to checklists
- casual risk assessment
- assumptions replacing verification
Repetition can build skill — but it can also reduce vigilance
Stress and Pressure
Pressure may come from:
- clients
- deadlines
- weather windows
- operational complexity
- internal expectations
Stress affects:
- judgement
- attention
- communication
- willingness to stop an operation
A common trap in RPAS operations is:
continuing because the job needs to be done, even when the conditions or risks say otherwise
Poor Communication
Communication failures can occur between:
- remote pilots and observers
- pilots and the CRP
- field crew and management
- operators and clients
Poor communication can result in:
- misunderstood hazards
- incorrect assumptions
- inconsistent control measures
- delayed response to changing conditions
High Workload
Some RPAS operations create significant workload, particularly when the operator is required to:
- monitor the aircraft
- watch airspace
- manage mission objectives
- communicate with observers
- monitor weather
- manage the public or site personnel
As workload increases, performance often decreases.
This is especially relevant in:
- controlled airspace
- EVLOS operations
- urban environments
- complex industrial sites
Human Factors Are Also Organisational
Human factors are not only about individuals.
They are also shaped by the operation itself.
Poor organisational design can create human factors problems through:
- unrealistic workloads
- weak procedures
- poor training
- lack of supervision
- unclear responsibilities
- pressure to keep operating
This means human factors must be considered at two levels:
- individual performance
- system design
Examples of Human Factors Issues in RPAS Operations
Human factors may be involved when:
- a pilot flies despite being tired
- a checklist is skipped because the task is routine
- a hazard is missed due to distraction
- a crew member does not speak up about a concern
- a flight continues in marginal weather due to client pressure
- an operation is approved without proper review because the team is busy
In each case, the problem is not just the final action.
It is the combination of:
people, pressure, process, and environment
The Role of the CRP
The Chief Remote Pilot plays a critical role in managing human factors.
This includes:
- setting operational standards
- identifying patterns of unsafe behaviour
- ensuring reporting pathways exist
- monitoring fatigue and workload
- reinforcing a culture where people can stop unsafe operations
A CRP should be able to recognise when a problem is not simply “pilot error”, but a sign of a broader human factors issue.
Practical Human Factors Controls
Professional operators should build controls into their system.
Examples include:
Clear SOPs
Reduce ambiguity and variability.
Pre-operational briefings
Improve shared understanding and coordination.
Fatigue and fitness for duty rules
Reduce impairment risk.
Checklists
Support consistency and reduce reliance on memory.
Reporting culture
Encourage near miss and hazard reporting.
Operational oversight
Ensure supervision remains active as the operation scales.
Human Factors and the Safety Management System
Human factors should be integrated into the operator’s:
- risk assessments
- SOPs
- training programs
- incident reporting
- Safety Management System (SMS)
This helps the organisation identify:
- where people are struggling
- where workload is excessive
- where procedures are unclear
where culture may be allowing unsafe behaviour
Human Factors and Incident Investigation
When something goes wrong, the correct question is not:
“Who made the mistake?”
It is:
“What human factors contributed to this outcome?”
This may include:
- fatigue
- distraction
- workload
- poor supervision
- unclear procedures
- inadequate training
A good operator looks beyond blame and tries to understand:why the system allowed the mistake to occur
Common Mistakes
We frequently see operators:
- treating human factors as a theory topic only
- focusing only on aircraft and technical risk
- ignoring fatigue and workload
- relying on experience instead of structure
- blaming individuals instead of examining the system
What Good Human Factors Management Looks Like
A strong RPAS operation:
- recognises that people are fallible
- builds procedures that reduce error risk
- encourages reporting and communication
- monitors fatigue, workload, and performance
- treats human factors as part of operational design
In simple terms:
good operators do not assume people will always perform perfectly — they build systems that help them perform well
How Uncrewed Approvals Can Help
Uncrewed Approvals supports operators to integrate human factors into:
- operational procedures
- CRP oversight
- safety systems
- training and assessment
- incident review and continuous improvement
We help operators move from:
technical compliance → professional operational maturity
Frequently Asked Questions
Are human factors only about pilot error?
No. Human factors include workload, fatigue, communication, supervision, and organisational influences.
Why are human factors important in RPAS?
Because many safety issues are driven by people, decisions, and system weaknesses rather than aircraft failure alone.
Does a small RPAS operator need to think about human factors?
Yes. Human factors apply to all operations, regardless of size.
How do human factors link to safety management?
They should be addressed through SOPs, reporting, training, risk assessments, and SMS processes.
People Are Part of the System
RPAS safety is not only about aircraft, software, and approvals.
It is also about:
- how people think
- how they communicate
- how they respond under pressure
- how the operation is structured around them
If human factors are ignored, risk will eventually appear somewhere else in the system
