1 SWISS Safety, 30 March 2006 SVFB Welcome! Operational Safety – Technical Safety.
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Transcript of 1 SWISS Safety, 30 March 2006 SVFB Welcome! Operational Safety – Technical Safety.
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1SWISS Safety, 30 March 2006 SVFB
Welcome!
Operational Safety – Technical Safety
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2SWISS Safety, 30 March 2006 SVFB
Operational Safety – Technical Safety
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3SWISS Safety, 30 March 2006 SVFB
Operational Safety – Technical Safety
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4SWISS Safety, 30 March 2006 SVFB
3.4
8.1
0.4
1.82.2
0.2
World 1.2
Hull Losses per Million Departures. Western Built J ets 1990 - 1999
2.00.6
4.00.4
ACCIDENT RATES VARYACCIDENT RATES VARY
Operational Safety – Technical Safety
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5SWISS Safety, 30 March 2006 SVFB
Operational Safety – Technical Safety
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6SWISS Safety, 30 March 2006 SVFB
Human Factor
– Intentional non - compliance– Proficiency– Operational Decision– Communication– Procedural– Incapacitation
Operational Safety – Technical Safety
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LOSA results: Errors committed and consequences (per 100 flights)
0 10 20 30 40 50 60
Violation(intentional)
Procedural(un-intentional)
Communication
Proficiency / Skill
OperationalDecision-making
number of errors which became consequential
number of flights with errors
Source: UT; Dr. R. Helmreich
Note:
Crews which committed violations
where twice as likely
to encounter an additional error!
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8SWISS Safety, 30 March 2006 SVFB
Operational Safety – Technical Safety
Without the whole hearted commitment of management, any safety program will be ineffective
Safety is good for business
Question: Who is producing Safety?
Safety Culture
Senior Management Commitment
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9SWISS Safety, 30 March 2006 SVFB
ReactiveFocus
Normal Operations
Exceedences
ProactiveFocus
Incidents
Accidents
Accident Precursors
Incident Precursors
Operational Safety – Technical Safety
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10SWISS Safety, 30 March 2006 SVFB
Operational Safety – Technical Safety
Data provided by Quick Access Recorder
B - 747 - 500 Parameters
MD - 11 - 1’500 Parameters
A320 - 2’500 Parameters
A330 - 4’000 Parameters out of 10’000
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11SWISS Safety, 30 March 2006 SVFB
Operational Safety – Technical Safety
“Stop shaking, man! Just tell me what happened?”
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12
Flight Data Monitoring
12SWISS Safety, 19 May 2005 WANO
Operational Safety – Technical Safety
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13SWISS Safety, 30 March 2006 SVFB
0% 5% 10% 15% 20% 25%
Percentage of Occurences
Time Pressure
Equipment Deficiencies
Inadequate Training
Fatigue
Co-ordination difficulties
Procedures
Supervision
Environment
Previous error
Co
ntr
ibu
tin
g F
ac
tors
Operational Safety – Technical Safety
Contributing factors to maintenance errors
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14SWISS Safety, 30 March 2006 SVFB
We must not aim to eliminate human error
Error is a useful mechanism to allow humans to learn
However, we must manage error where it can have a significant impact on:
– Aircraft Safety– Health and Safety– Economics
Operational Safety – Technical Safety
Managing maintenance errors
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15SWISS Safety, 30 March 2006 SVFB
In Europe, EASA have identified maintenance human factor issues
Currently have plans to develop regulations governing all areas of the industry between 2005 and 2007:– Design organisations, (Part21-P-NPA)– Airframe manufacturers, (Part25- P- NPA 25-310)– Powerplant manufacturers (Part E- NPA-E-38)– Maintenance organisations: (Part 145 Amendment 5)
Operational Safety – Technical Safety
Regulators approach
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16SWISS Safety, 30 March 2006 SVFB
– Error reporting system– Efficient shift and task handover
procedures– Organisation of shifts– Effective planning of maintenance tasks– HF training– etc
EASA PART Part 145 Amendtment 5 requires
Operational Safety – Technical Safety
Regulators approach
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17SWISS Safety, 30 March 2006 SVFB
Maintenance organizations are faced with the practical questions of Human Factors, including:– Minimizing the number of errors and their consequences
Error detection (e.g. reporting) Event analysis and improvement actions Training
– Dealing with violations Understanding violations and removing the need to violate Violation management
Operational Safety – Technical Safety
Managing maintenance errors
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18SWISS Safety, 30 March 2006 SVFB
The Challenge– The conflict of maintenance professionalism– Maintenance personnel in some organisations are unable to
openly report for fear of disciplinary action
The Solution– These issues cannot be solved by one measure alone, but in the
development of a “Just and Learning Safety Culture”
Blame Just and Learning No Blame
Styles of Safety Culture
Operational Safety – Technical Safety
Managing maintenance errors
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19SWISS Safety, 30 March 2006 SVFB
Operational Safety – Technical Safety
Airbus maintenance error study
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20SWISS Safety, 30 March 2006 SVFB
Operational Safety – Technical Safety
Top Six Error Types:– 13% Installation incomplete, component installed but not
secured– 10% Installation incorrect, incorrect torque applied – 9% Installation incomplete, component/ fluid/ material
missing – 8% Installation incomplete, access panel not closed/ secured– 6% Installation incorrect, system/ equipment incorrectly set
or reset– 5% Installation incorrect, incorrect component/ part/ fluid/
gas/ material installed
Airbus maintenance error study
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21SWISS Safety, 30 March 2006 SVFB
A B C D E F G H
Goal
F HA B C D E G
Removal: 1 way
C
FB
E
D
G
H
A
Installation: 40,000 combinations - not including omissions
[Adapted from Hall, Human Factors Training Module 1
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22SWISS Safety, 30 March 2006 SVFB
“Reducing Errors to Make Flights Safer”The Wall Street Journal Europe
Operational Safety – Technical Safety
Conclusion
• Reducing seemingly minor errors is only going to become more critical
• As skies and airport get more crowded, mistakes can have more serious consequences
• What is safe today is not going to be safe enough tomorrow
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23SWISS Safety, 30 March 2006 SVFB
Operational Safety – Technical Safety
Thank you!
Questions? and Answers!