2. Learning Objectives
• Recognize the outstanding safety record of commercial aviation relative to other modes of
transportation.
• Explain the difficulty in measuring aviation safety data.
• Explain the difficulty in measuring aviation safety data.
• Identify several non accident safety indicators.
• Distinguish between accidents and incidents.
• Compare and contrast primary, secondary, and tertiary safety factors.
• Describe the role of the airframe and engine manufacturers in analyzing
• safety data.
• Discuss the results of Boeing’s Summary of Commercial Jet
• Transport Aircraft Accidents.
• Summarize the trend in aviation accident statistics as reported by
• the NTSB for Part 121 and Part 135 operators during the 1980s and
• 1990s.
3. • major factors affecting commercial aviation safety
• accident causes and types
• Boeing Company of commercial jet accidents between 1959 and 1999
• Discussion of aviation accident statistics for each segment of commercial aviation during the 1980s
and 1990s
5. Safety Factors
• In passenger transportation…..
safety factors = events or procedures associated with or influence fatality
rates.
no predictive power; an accident=safety degradation
Aviation accidents are rare events that typically are the culmination
of several concurrent failures in mechanical, human, or technological
components in the air transportation system.
In passenger transportation, safety factors are events or procedures that are associated with or influence fatality rates
Accident and fatality rates are alleged to be inadequate measures of safety
Accident and fatality rates are alleged to be inadequate
measures of safety because they are said to have no predictive
power; an accident is the result of safety degradation.
