Operational Safety in Aviation
FAA System Safety Handbook, Chapter 16: Operational Safety in AviationDecember 30, 2000
Chapter 16: Operational Safety in Aviation
16.1 GLOBAL AVIATION INFORMATION NETWORK (GAIN).................................................. 1
16.2 FLIGHT OPERATIONS QUALITY ASSURANCE PROGRAM (FOQA) ............................... 4
16.3 SPECIAL SAFETY STUDIES AND DATA ANALYSIS............................................................ 5
16.4 OPERATOR’S FLIGHT SAFETY HANDBOOK (OFSH)......................................................... 6
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16.0 Operational Safety in Aviation
This chapter summarizes recent initiatives and other related activities appropriate to operational safety in
aviation. The Global Aviation Information Network (GAIN) program is discussed. Special safety studies
and data analyses directed to aircraft performance risk assessment are presented, and the Operator’s Flight
Safety Handbook (OFSH is summarized and discussed.
Many years ago Heinrich conducted a statistical study of accidents and determined that out of 300
incidents, one fatal accident may occur. This provided a general analogy of a ratio of 1 to 300. Years later,
Frank Byrd conducted a similar study and noted that out of 600 incidents, one fatal accident occurred,
indicating a ratio of 1 to 600. Figure 16-1 illustrates the concept that for every accident or incident that is
reported, there may be a much larger number that are not reported.
It is important to identify incidents that could have resulted in accidents. An incident is any occurrence that
could have resulted in an accident, i.e., fatal harm. But since the harm did not occur, it is considered an
incident. The point is that all incidents that could have resulted in an accident should be reported to
determine the relevant factors associated with that incident.
INCIDENTS
ACCIDENTS
UNREPORTED
OCCURRENCES
Heinrich Pyramid
Figure 16-1
16.1 Global Aviation Information Network (GAIN)
The Federal Aviation Administration (FAA) first proposed a Global Analysis and Information Network
(GAIN) in May 1996 for the worldwide collection, analysis, and dissemination of safety information to
help the aviation community reach the goal of zero accidents. GAIN was envisioned by the FAA as a
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privately owned and operated international information infrastructure that would use a broad variety of
worldwide aviation data sources together with comprehensive analytical techniques to assist in identifying
emerging safety concerns.
As the aviation community exchanged ideas on the GAIN concept over the first 2 ½ years after its
announcement, a variety of descriptions were applied to GAIN by various segments of the aviation
community. The GAIN Steering Committee considered various comments and recommendations on GAIN
and agreed upon the following description of GAIN in January 1999:
“GAIN promotes and facilitates the voluntary collection and sharing of safety information by and among
users in the international aviation community to improve safety.”
The Steering Committee also changed the meaning of the GAIN acronym to “ Global Aviation Information
Network” to better define the program.
The GAIN organization consists of the Steering Committee, Working Groups, Program Office, and a
planned Government Support Team.
The Steering Committee consists of industry stakeholders (airlines, manufacturers, employee groups and
their trade associations) that set high-level GAIN policy, issue charters to direct the Working Groups, and
guide the Program Office. Represented on the GAIN Steering Committee are Airbus Industrie, Air France,
Air Line Pilots Association (ALPA), Air Transport Association (ATA), Boeing Commercial Airplane
Group, British Airways, Continental Airlines, Flight Safety Foundation, International Association of
Machinists (IAM), Japan Airlines, National Air Traffic Controller Association (NATCA), National
Business Aviation Association (NBAA), Northwest Airlines, and the U.S. military. The Steering
Committee meets on a quarterly basis.
The Executive Committee is comprised of several Steering Committee members and acts on behalf of the
whole Steering Committee on administrative matters or as directed.
The Working Groups are interdisciplinary industry/government teams that work GAIN issues in a largely
autonomous fashion, within the charters established for them by the Steering Committee. Working Groups
are listed below in paragraph 16.1.2.
The Program Office administers GAIN and supports the Steering Committee, Working Groups, and the
Government Support Team by communicating with GAIN participants, planning meetings and conferences,
preparing meeting minutes, and other tasks.
A Government Support Team (GST) is planned, which will include representatives of government
regulatory authorities from various countries plus related international groups. The GST will provide
assistance to airlines and air traffic organizations in developing or improving safety reporting systems and
sharing safety information.
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16.1.1 The 1999 GAIN Action Plan
Acknowledging that the groundwork had been laid at the Long Beach conference, the GAIN Steering
Committee unanimously agreed at their January 1999 meeting that the time had come to begin
implementing the global sharing of safety information. After reviewing a compilation of comments and
recommendations made by GAIN participants, the Steering Committee developed a 1999 GAIN Action
Plan addressing the following areas:
- Increase global awareness of and support for GAIN
- Increase participation from the international aviation community to continue the expansion of
GAIN
- Influence the reduction of organizational, regulatory, civil litigation, criminal sanction, and public
disclosure impediments to voluntary, non-punitive collecting and sharing of safety information
- Promote the initiation of additional internal safety data collection and analysis programs, with the
help of GAIN partners
- Support expansion of existing sharing among users
- Promote development and use of analytical methods and tools
- Plan next GAIN conference to continue development and assess progress.
16.1.2 GAIN Working Groups
The Steering Committee established four GAIN Working Groups (WGs) to assist the Steering Committee
in implementing the 1999 GAIN Action Plan, and developed charters to define the responsibilities of each
working group. Brief descriptions of the Working Groups are provided below.
WG A: Aviation Operator Safety Practices - This group will develop products to help operators obtain
information on starting, improving, or expanding their internal aviation safety programs. The products
should include commonly accepted standards and best operating practices, methods, procedures, tools and
guidelines for use by safety managers. The group will identify currently available materials that support
the development of these products. These materials could include sample safety reporting forms, computer
programs for tracking safety reports, suggested procedures, manuals, and other information to help
operators start or improve programs without "reinventing the wheel." The working group will then develop
products that safety officers can use to implement programs to collect, analyze, and share aviation safety
information.
WG B: Analytical Methods and Tools - The group will: (a) identify and increase awareness of existing
analytical methods and tools; (b) solicit requirements for additional analytical methods and tools from the
aviation community; and (c) promote the use of existing methods and tools as well as the development of
new ones. The group will endeavor to address various types of safety data and information (including
voluntary reports and digitally derived aircraft and ATC system safety performance data). They will also
benchmark or validate to the extent possible the usefulness and usability of the tools and level of
proficiency needed as a guide for potential users, identify data needs where required for use of tools, and
transfer knowledge about methods and tools to users.
WG C: Global Information Sharing Prototypes - This group will develop prototypes to begin global
sharing of aviation safety information. These prototypes could include (a) a sharing system capability for
automated sharing of safety incident/event reports derived from existing and new safety reporting systems
to enhance current sharing activities among airline safety managers; (b) a sharing library containing safety
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information "published" by airlines and other aviation organizations; (c) an aviation safety Internet site to
encourage use of existing "public" information/data sources.
WG D: Reducing Impediments (Organizational, Regulatory, Civil Litigation, Criminal Sanction,
and Risk of Public Disclosure) - This working group will identify and evaluate barriers that prevent the
collection and sharing of aviation safety information among various organizations and propose solutions
that are reasonable and effective. They will pursue changes in ICAO Annexes to appropriately protect
information from accident/incident prevention programs. They will propose means to obtain legislation to
protect reporters and providers of safety information. They will promote “jeopardy-free” reporting
procedures and create methods to obtain organizational commitment to sharing safety information.
16.2 Flight Operations Quality Assurance Program (FOQA)
The FAA Administrator has announced that the FAA will soon issue a notice of proposed rulemaking on
Flight Operations Quality Assurance Programs (FOQA).
"This rule is intended to encourage the voluntary implementation of FOQA by providing assurance that
information obtained from such programs cannot be used by the FAA for punitive enforcement purposes,"
FOQA is the voluntary collection, analysis, and sharing of routine flight operation data, obtained by
analysis of flight data recorder information. The FOQA program is one of several where the FAA is
working in partnership with industry and labor to enhance aviation safety.
The FAA also has a new program where the FAA is working in partnership with industry to use improved
methods and technology to detect potential defects in aircraft engines
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16.3 Special Safety Studies and Data Analysis
AVERAGE VERTICAL SPEED 2000 TO 1000 FT
go-around #3
Figure 16.1-1 Example Histogram for Illustrative Purposes Only
Average vertical speed 2kft to 1kft (larges)
Sample Size: 391
Mean: 984.38
Std. Deviation: 247.656
16.3.1 Model Development
FAA, in cooperation with NASA and general industry, is developing models to evaluate aviation data from
routine flights in order to identify precursor events that indicate a risk of incidents and accidents. Models
are under development by the Office of System Safety, working in conjunction with the System Data and
Modeling activity of the NASA Aviation Safety Program (AvSP). The modeling effort is closely related to
the Aviation Performance Measurement System (APMS) program, Global Aviation Information Network
(GAIN), and Flight Operations Quality Assurance (FOQA) programs. APMS is being developed by NASA
to provide technical tools to ease the large-scale implementation of flight data analyses in support of airline
FOQA. The GAIN program is designed to promote the sharing of safety information including aircraft
flight data, to proactively improve safety.
One of the models under development is the Aircraft Performance Risk Assessment Model (ASPRAM). It
has the objective of using empirical data and expert judgment to quantify the risk of incidents and
accidents. The general approach is to develop an automated means of analyzing commercial aircraft flight
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recorder data from non-accident precursors and their causes. Expert opinion is incorporated into the
automated model through the use of knowledge-based rules, which are used to identify precursor events
and assess the risk of incidents and accidents.
16.4 Operator’s Flight Safety Handbook (OFSH)
The GAIN "Aviation Operator's Safety Practices" Working Group has developed the “Operator’s Flight
Safety Handbook” (OFSH). Specifically, the international aviation safety community, in coordination with
industry and government, worked together to modify the Airbus "Flight Safety Manager's Handbook" to a
generic, worldwide product. It is intended to serve as a guide for the creation and operation of a flight
safety function within an operator’s organization. The operator is encouraged to tailor the document as
necessary to be compatible with the philosophy, practices, and procedures of the organization.
1
Section 1 of the OFSH
2
lists the important elements of an effective safety program:
- Senior management commitment to the company safety program
- Appointment of a Flight Safety Offices reporting directly to the CEO
- Encouragement of a positive safety culture
- Hazard identification and risk management
- Ongoing hazard reporting system
- Safety audits and assessment of quality or compliance
- Accident and incident reporting and investigation
- Documentation
- Immunity-based reporting systems
- Implementation of a Digital Flight Data Recorder information collection agreement with the pilots
- The exchange of valuable “Lessons Learned” with manufacturers and other airlines
- Safety training integration into the organization's training syllabi
- Human Factors training for all personnel
- Emergency response planning
- Regular evaluation and ongoing fine tuning of the program.
Section 2 of the OFSH discusses Organization and Administration. “A safety programme is essentially a
coordinated set of procedures for effectively managing the safety of an operation.”
3
Management should:
specify the company’s standards, ensure the everyone knows the standard and accepts them, make sure
there is a system in place so that deviations from the standard are recognized, reported, and corrected.
The Company’s Policy Manual should contain a signed statement the Chief Executive Officer which
specifies the safety culture and commitment in order to give credence and validation.
Section 3 outlines the elements of a Safety Program:
1
GAIN Working Group A, “Aviation Operator’s Safety Handbook”, 3
rd
Draft Review, March 13-14, 2000.
2
IBID, GAIN Working Group A.
3
IBID, GAIN Working Group A
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- Safety Objectives
- Flight Safety Committee
- Hazard Reporting
- Immunity-based Reporting
- Compliance and Verification
- Safety Trends Analysis
- FOQA Collection/Analysis
- Dissemination of Flight Safety Information
- Liaison with other Departments
Section 4 is a review of Human Factors issues in aviation. The key points touched on in this section
include:
- Human Error
- Ergonomics
- The SHEL Model
- Aim of Human Factors in Aviation
- Safety & Efficiency
- Personality vs. Attitude
- Crew Resource Management
Section 5 discusses the concepts of Incident/Accident Investigation and Reports. Specific definitions of
concepts associated with incident/accident investigation is presented. Accident investigation and reporting
is also addressed.
Section 6 discusses Emergency Response and Crisis Management. A detailed checklist is provided which
provides requirements for a Crisis Management Center.
Section 7 of the AOS handbook discusses Risk Management. The true cost of risk is highlighted as well as
risk profiles, decision making and cost/benefit considerations.
Section 8 provides information on external program interfaces, safety practices of contractors, subcontractors, and other third parties.
The appendices provide additional detailed information, including sample report forms, references,
organization and manufacturer information, reviews of analytical methods and tools, sample safety surveys
and audits, an overview of the risk management process, and corporate accident response team guidelines.
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