PEAR Model

Description

The mnemonic PEAR is used to recall the four considerations for assessing and mitigating human factors in aviation maintenance:

  • People who do the job;
  • Environment in which they work;
  • Actions they perform; and
  • Resources necessary to complete the job.

People

Physical Factors

  • Physical Size
  • Gender
  • Age
  • Strength
  • Sensory Limitations

Physiological Factors

  • Nutritional factors
  • Health
  • Lifestyle
  • Fatigue
  • Chemical dependancy

Psychological Factors

  • Workload
  • Experience
  • Knowledge
  • Training
  • Attitude
  • Mental or emotional state

Psychosocial Factors

  • Interpersonal conflicts
  • Personal loss
  • Financial hardships
  • Recent divorce

Environment

Physical

  • Weather
  • Location inside/outside
  • Workspace
  • Shift
  • Lighting
  • Sound level
  • Safety

Organisational

  • Personnel
  • Supervision
  • Labour-management relations
  • Pressures
  • Crew structure
  • Size of company
  • Profitability
  • Morale
  • Corporate culture

Actions

  • Steps to perform task
  • Sequence of activity
  • Number of people involved
  • Communication requirements
  • Information control requirements
  • Knowledge requirements
  • Skill requirements
  • Attitude requirements
  • Certification requirements
  • Inspection requirements

Resources

  • Procedures/work cards
  • Technical manuals
  • Other people
  • Test equipment
  • Tools
  • Computers/software
  • Paperwork/signoffs
  • Ground handling equipment
  • Work stands and lifts
  • Fixtures
  • Materials
  • Task lighting
  • Training
  • Quality systems

Related Articles

▼ Human Performance Modelling

Generic Error-Modelling System (GEMS)

Heinrich Pyramid

Human Factors Analysis and Classification System (HFACS)

Human Performance Modelling (HPM)

ICAO SHELL Model

James Reason HF Model

LMQ HF Model

PEAR Model

Further Reading

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