Introduction to the Concept of Continuing Airworthiness

1
Introduction to the Concept of Continuing
Airworthiness

• Cooperative Development of Operational
• Safety Continuing Airworthiness
• COSCAP

2
Continuing Airworthiness

• Continuing airworthiness covers all of the
  processes ensuring that, at any time in their
  operating life, all aircraft comply with the
  airworthiness requirements in force and are in a
  condition for safe operation.

3
Continuing Airworthiness

• Continuing Airworthiness and the transfer of
  information is referred to in
• Annex 6, Part I, 8.6, "Modifications and
  repairs"
• Annex 6, Part 1, 8.8, "Records"

4
Continuing Airworthiness

• (Continued)
• Annex 6, Part I, 8.9, "Continuing
• Airworthiness Information"
• Annex 6, Part I, 11.3, "Maintenance manual"
• Annex 8, Part II, 4.2, "Information related to
  continuing airworthiness of aircraft".

5
Continuing Airworthiness

• DEFINITIONSState of Design and the State of
  Registry
• The State of Design
• The State having jurisdiction over the
  organization responsible for the type design.
• The State of Registry
• The State on whose register the aircraft is
  entered.

6
Continuing Airworthiness

• Continuing Airworthiness includes, under the
  control of the respective Civil Aviation
  Authorities of the State of Design and the State
  of Registry, eight basic requirements.

7
Continuing Airworthiness

• Part A DESIGN CRITERIA which provide the
  necessary accessibility for inspection and permit
  the use of established processes and practices
  for the accomplishment of maintenance

8
Continuing Airworthiness

• Part A - TYPICAL DESIGN CRITERIA
• Part 21 - Certification Procedures for Products
  and Parts
• Part 23 - Airworthiness Standards Normal,
  Utility, Acrobatic, and Commuter Category
  Airplanes
• Part 25 - Airworthiness Standards Transport
  Category Airplanes
• Part 27 - Airworthiness Standards Normal
  Category Rotorcraft

9
Continuing Airworthiness

• Part 29 - Airworthiness Standards Transport
  Category Rotorcraft
• Part 31 - Airworthiness Standards Manned Free
  Balloons
• Part 33 - Airworthiness Standards Aircraft
  Engines
• Part 35 - Airworthiness Standards Propellers

10
Continuing Airworthiness

• PART B - Maintenance Requirements
• Preparation by the organization responsible for
  the type design of the specifications, methods,
  procedures and tasks necessary to maintain the
  aircraft and publication of this information in a
  format that can be readily adapted for use by an
  operator

11
Continuing Airworthiness

• PART B - Maintenance Requirements
• Methods, Procedures and Tasks necessary to
  maintain the aircraft
• Early in a new types development an INDUSTRY
  STEERING COMMITTEE is formed to manage
  maintenance program development activities. The
  committee is composed of members from a
  representative number of operators and a
  representative of the prime airframe and engine
  manufacturer.

12
Continuing Airworthiness

• Responsibilities of the committee include
• Establishing policy
• Setting initial goals for scheduled maintenance
  check intervals
• Directing the activities of the WORKING GROUPS
• Carrying out all liaison with the manufacturer
  and other operators
• Preparing the final program recommendations
• Coordinating any future revisions
• Representing the operators during contact with
  the authority of the State of Design

13
Continuing Airworthiness

• WORKING GROUPS
• A group designated by the industry steering
  committee that consists of specialist
  representatives from the participating operators,
  the prime manufacturer, and the authority of the
  State of Design. A working group is responsible
  for designated systems of the aircraft and is
  tasked to determine, by a structured analysis,
  the initial maintenance requirements for a new
  aircraft type.

14
Continuing Airworthiness

• Output of Working Groups
• The results of the Working Groups are published
  by the Industry steering committee in the form of
  a report (MSGR). This report forms the basis for
  the manufacturer to publish the MAINTENANCE
  PLANNING DOCUMENT (MPD) and Aircraft Maintenance
  manual.

15
Continuing Airworthiness

• Part C COMPANY M/M
• Adoption by the operator of specifications,
  methods, procedures and tasks using the
  information provided by the organization
  responsible for the type design ,(MPD) and
  preparing that material in the form of a
  maintenance programme suitable for its operation

16
Continuing Airworthiness

• Part C - Company Maintenance Program
• A new operator is responsible for producing his
  own maintenance program tailored for his specific
  operation. This program must be based on the MPD
  and not based on another operators experience.

17
Continuing Airworthiness

• Part D - REPORTING
• The reporting of defects and other significant
  maintenance and operational information by the
  operator to the organization responsible for the
  type design in accordance with the requirements
  of the State of Registry

18
Continuing Airworthiness

• Part D - Mandatory Defect reporting.
• States should require an operator to report all
  significant airworthiness defects and other data
  within a stipulated time period (72 hours) to the
  authority/manufacturer.

19
Continuing Airworthiness

• Part E - DEFECT ANALYSIS
• The analysis of defect, accident and other
  maintenance and operational information by
  the organization responsible for the type
  design, the State of Design and the State of
  Registry and the initiation and transmission of
  information and recommended or mandatory action
  to be taken in response to that analysis

20
Continuing Airworthiness

• Part E - DEFECT ANALYSIS
• The manufacturer in cooperation with the state of
  design shall analyse all reports from operators
  (Defect reliability) and foreign authorities.
  The results of this analysis could result in

21
Continuing Airworthiness

• Part E - DEFECT ANALYSIS
• The results of this analysis by the
  manufacturer and his authority could result in
• Issue of Service Information(SB, SL etc.
• Issue of an Airworthiness directive.
• Change to the MPD, MM etc,
• Change to AFM.

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Continuing Airworthiness

• PART F - Local compliance
• Consideration of, and, as deemed appropriate by
  the operator or the State of Registry, action on
  the information provided by the organization
  responsible for the type design or the State of
  Design, with particular emphasis on action
  designated as "mandatory"

23
Continuing Airworthiness

• PART F - Local compliance
• The operator must review all service information
  and take appropriate action.
• The authority should also review all local
  service information and SOD Airworthiness
  Directives and issue local Directives as
  applicable.

24
Continuing Airworthiness

• PART G - Compliance with Life limits
• Accomplishment by the operator of all mandatory
  requirements concerning the aircraft with
  particular reference to fatigue life limits and
  any special tests or inspections required by the
  certification process or subsequently found
  necessary to ensure structural integrity and

25
Continuing Airworthiness

• PART H - Compliance with SIP
• Preparation of and compliance with Supplemental
  Structural Inspection Programmes and subsequent
  requirements related to aging aircraft.

26
Continuing Airworthiness

• General information on the continuing
  airworthiness procedures followed in individual
  ICAO Contracting States is published in ICAO
  Circular 95 -The Continuing Airworthiness of
  Aircraft in Service.
• (End)