ICAO PBN Symposium Regulatory and Certification Forum Safety case – procedure ready for publication? Jeff Cochrane, Manager CNS Service Design.

ICAO PBN SymposiumRegulatory and Certification Forum

Safety case – procedure ready for publication?

Jeff Cochrane, Manager CNS Service Design

• Private, non-share capital corporation• 2nd largest ANSP in the world

– 12 million aircraft movements– Over 18 million square km of airspace– 4,900 employees

• Regulated by Federal Government on Safety Performance

• CARs Part VIII, Subpart 5 - Requirement for Safety Management System to be in force January 1st, 2008

• Phased in over four years and completed this year

NAV CANADASMS Certification

2

Mission StatementNAV CANADA facilitates the safe movement of aircraft, efficiently and cost effectively, through the provision of air

navigation services on a long-term, sustainable basis.

Overarching Objectives1. Maintain a safety record in top decile

2. Maintain ANS customer service charges in bottom quartile

3. Implement and maintain a modern, cost-efficient technology platform in the top quartile

4. Ensure a decline in customer service charges over the long term

5. Create a productive and fulfilling workplace, placing us amongst top Canadian employers

6. Identify and, where feasible, introduce measurable benefits which contribute to the reduction of the environmental footprint of the aviation industry.

Safety Planning

Operational Risk

Management

Exchange of Safety

Information

Safety Performance Measurement

SafetyManagement Assurance

Safety Management System

Operational Risk Management

The systematic and effective application of suitable risk-management techniques, employing system safety and human factors concepts to reduce the safety risks resulting from the provision, by NAV CANADA, of air navigation services and products to a level as low as reasonably practicable (ALARP).

Operational Risk Management

Safety Management Checklist

Hazard Identification and Risk Analysis (HIRA)• Multi-disciplinary brainstorming• Systems approach to hazard identification

– People– Procedures– Equipment– Operational environment

• Best practices for indentifying and mitigating operational safety hazards and risks related to technical and human performance

RISKThe product of probability and severity

Severity Probability

A B C D E

1 EXTREME RISK STOP ACTIVITY

VERY HIGH RISK ACTIVITY UNREALISTIC

HIGH RISK SIGNIFICANT MITIGATION NEEDED

MODERATE RISK - MITIGATION NEEDED

LOW RISK-MAY NEED MITIGATION

2 VERY HIGH RISK ACTIVITY UNREALISTIC

HIGH RISK SIGNIFICANT MITIGATION NEEDED

MODERATE RISK – MITIGATION NEEDED

LOW RISK MAY NEED MITIGATION

MINOR RISK MINIMAL MITIGATION

3 HIGH RISK SIGNIFICANT MITIGATION NEEDED

MODERATE RISK –MITIGATION NEEDED

LOW RISK MAY NEED MITIGATION

MINOR RISK MINIMAL MITIGATION

TRIVIAL RISK -LITTLE OR NO MITIGATION

4 MODERATE RISK – MITIGATION NEEDED

LOW RISK -MAY NEED MITIGATION

MINOR RISK MINIMAL MITIGATION

TRIVIAL RISK LITTLE OR NO MITIGATION

NEARLY ZERO RISK- NO MITIGATION NEEDED

Range 10-3 10-4 10-5 10-6 10-7 10-8

RISKThe product of probability and severity

• General

• ATC Based

• Customer Based

Constraints and Assumptions

• Hazard - A latent condition or circumstance that could lead to or contribute to one or more undesirable outcomes.

• Defined in terms of:– Context– Description– Causes– Outcome– Probability x Severity = Risk– Mitigations - effect on “P x S = Risk”– Residual risk is ALARP

Hazards

• Mitigation - Measures taken to reduce risk by eliminating a hazard or reducing the probability and/or severity.

• Mitigation measures complete when the residual risk is ALARP.

• Matrix of mitigations across hazards

Hazard Table – Mitigation Table

SMS success when:• We have a clear understanding of the technical,

operational and organizational factors that affect safety– Current issues– Potential safety risks that could result from business and

operational changes• We implement appropriate and effective mitigation

– e.g. design of airspace, level of service, integration of flight deck with ATS services & products, design of systems/functionality, design of procedures, training programs, staffing, policies, procedures, instruction, supervision, briefings, alerts

Implementing new PBN procedures touches all disciplines requiring a focused effort of

consultation supported by SMS processes

Summary