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DEFINITIONS.

Published byLouise McGee Modified over 5 years ago

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Presentation on theme: "DEFINITIONS."— Presentation transcript:

1 DEFINITIONS

2 OVERVIEW HAZARD RISK PROBABILITY CONSEQUENCES
ALARP (As Low As Reasonably Practical) SAFETY SAFETY PERFORMANCE INDICATORS SAFETY MANAGEMENT SYSTEM RISK ANALYSIS Aerodrome Safety Workshop - Almaty, Kazakhstan - 18 to 22 November 2002

3 Hazard (1) A scenario which, if it occurs, can have negative consequences to personnel, material (or the environment) Aerodrome Safety Workshop - Almaty, Kazakhstan - 18 to 22 November 2002

4 Hazard (2) Examples related to an aerodrome:
An aeroplane leaving the runway Aeroplanes colliding on the runway Aeroplanes colliding on the movement area A vehicle colliding with an aeroplane Aircrew being misled by confusing visual aids Aerodrome Safety Workshop - Almaty, Kazakhstan - 18 to 22 November 2002

5 Risk = Probability * Consequences
Aerodrome Safety Workshop - Almaty, Kazakhstan - 18 to 22 November 2002

6 Probability Extremely improbable (<E-9)
Extremely Remote (E-7 – E-9) Remote (E-5 – E-7) Reasonable Probable (E-3 – E-5) Frequent (E-3) All per flight hour or per movement Qualitative definitions also available Aerodrome Safety Workshop - Almaty, Kazakhstan - 18 to 22 November 2002

7 Consequences Catastrophic Hazardous Major Minor
Aerodrome Safety Workshop - Almaty, Kazakhstan - 18 to 22 November 2002

8 Risk Tolerability Aerodrome Safety Workshop - Almaty, Kazakhstan - 18 to 22 November 2002

9 ALARP As Low As Reasonable Practical Risk Limit Risk Target
Cost/Benefit Aerodrome Safety Workshop - Almaty, Kazakhstan - 18 to 22 November 2002

10 Aerodrome Safety Workshop - Almaty, Kazakhstan - 18 to 22 November 2002

11 Safety (1) Doc 9735: A condition in which the risk of harm and damage is limited to an acceptable level Air Navigation Commission: The state of freedom from unacceptable risk of injury to persons or damage to aircraft and property Aerodrome Safety Workshop - Almaty, Kazakhstan - 18 to 22 November 2002

12 Safety (2) Practical terms:
All risk levels kept below the risk limit (ALARP figure) All risks are kept in the acceptable region (Risk Tolerability Matrix) Aerodrome Safety Workshop - Almaty, Kazakhstan - 18 to 22 November 2002

13 Safety Performance Indicators (1)
Necessary to monitor safety performance Necessary to identify areas for improvement Aerodrome Safety Workshop - Almaty, Kazakhstan - 18 to 22 November 2002

14 Safety Performance Indicators (2)
Fatal accidents per million movements not useful for individual aerodromes Incidents which have a severe potential Aerodrome Safety Workshop - Almaty, Kazakhstan - 18 to 22 November 2002

15 Safety Performance Indicators (3)
Movement Area Safety Pavement Maintenance Winter Operation Electrical Services RFF Aerodrome Safety Workshop - Almaty, Kazakhstan - 18 to 22 November 2002

16 Safety Management System (1)
Doc 9774: Safety management system. A system for the management of safety at aerodromes including the organizational structure, responsibilities, procedures, processes and provisions for the implementation of aerodrome safety policies by an aerodrome operator, which provides for the control of safety at, and the safe use of, the aerodrome. Aerodrome Safety Workshop - Almaty, Kazakhstan - 18 to 22 November 2002

17 Safety Management System (2)
A systematic approach to safety Safety shall be managed and controlled An organisation Procedures A safety policy Implementation Aerodrome Safety Workshop - Almaty, Kazakhstan - 18 to 22 November 2002

18 Risk Analysis (1) A systematic approach for describing and/or calculating risk Quantitative or Qualitative Aerodrome Safety Workshop - Almaty, Kazakhstan - 18 to 22 November 2002

19 Risk Analysis (2) A description of problems and objectives
Selection of procedures, methods and data sources Identification of undesired events An analysis of causal factors and consequences A description of risk Mitigating measures Presentation of results Aerodrome Safety Workshop - Almaty, Kazakhstan - 18 to 22 November 2002

20 Review Some central terms related to safety management
Most are NOT found in Doc 9774 All are in the hand-out Aerodrome Safety Workshop - Almaty, Kazakhstan - 18 to 22 November 2002

21 QUESTIONS? Aerodrome Safety Workshop - Almaty, Kazakhstan - 18 to 22 November 2002

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