Pre-Audit Checklists Interviews Evaluation
3.3.3.3 Sampling
The sample size of a population and selection criteria have a direct impact on the validity and confidence level of the results. The following guidelines should be used: a each sample group must stand alone. If there are 1 400 pilots, 2 800 flight attendants, 180 maintenance personnel, and 15 dispatchers, each of the four groups must be considered separately; b the RAP goal is to achieve a 95 per cent confidence level with the results of the sample tested. Often, this goal may not be appropriate; therefore, the audit team must carefully consider both the sample size and the time devoted to the task. Random sampling may be considered an acceptable alternative; c the chart found in Appendix 4 will help determine the sample size needed to achieve a 95 per cent confidence level for populations of 400 or more. For smaller populations, a larger sample must be examined and the following guide should be used: Population Sample 100: 50 per cent 199: 40 per cent Part 2 ✈ Chapter 1 - Airworthiness Audit Policy and Procedures Page 27 Part 1 - Civil Aviation Audit Policy and Procedures MRA – 1st Edition September 1998 399: 35 per cent3.3.4 Verification
1 During this phase, the audit team will gather information to determine the company’s level of conformance. Specifically, verification will: a determine whether company controls are operating effectively and as intended; b determine whether the auditee’s operation conforms to the aviation regulations and standards contained in the audit checklists; and c analyse particular deficiencies to assess their effects and identify the causes. 2 Company files or records should not be accessed without appropriate company authorisation and, when possible, company representatives should be present during the review of these files and records. 3 If the review and verification phases do not provide sufficient confirmation of the company’s level of conformance, further substantiation will be required to ensure that any evidence obtained up to that point supports the audit findings and conclusions. In short, other supporting documentation must be acquired and secured. 4 Verification includes various types of inspections. These may be Aircraft Inspections of each type of aircraft, Pre-FlightRamp Inspections, In-Flight Inspections sampling of company routes, i.e. domestic, transborder, international and new routes and Base Inspections. These inspections may be carried out as co-ordinated inspections. For example, a Pre-Flight. Ramp Inspection may be conducted by a Flight Operations Inspector and an Airworthiness Inspector.3.3.5 Confirmation Request Form CRF
1 The CRF is an effective audit tool in the following cases: a where evidence indicates an audit finding, the company will be given the opportunity to show otherwise; b the auditor will determine the course of action to be adopted based on the auditee’s response; c the auditor will observe the state of the company records management system from the auditee’s perspective; d arbitrary audit findings based on subjective examples will be eliminated;Parts
» Initial Certification Audit Audit Types
» Resource Allocation Criteria Frequency
» Financial Change Labour Difficulties
» Management Practices Risk Indicators
» Poor Internal Audit or Quality Assurance Program
» Change in Operational Scope or Additional Authorities
» Changes in Contracting for Services
» Additions or Changes to Product Line
» Purpose Co-ordination Unity of Control
» Qualifications Principal Inspector Restrictions
» Inconsistencies — Civil Aviation Approvals Parallel Report
» Airworthiness Operations Specialist Audit
» Responsibilities Convening Authority CA
» Terms of Reference Qualifications
» Terms of Reference Qualifications Responsibilities
» Team Selection Observer Pre-Audit
» General Entry Meeting Physical Audit
» Pre-Audit Checklists Interviews Evaluation
» Confirmation Request Form CRF
» Completion of Audit Finding Form
» Daily Briefings Exit Meeting
» General Audit Report Post-Audit
» Parallel Report Follow-Up Post-Audit
» Corrective Action Plan Audit Follow-Up
» Audit Philosophy Applied Standard
» Purpose Policy and Organisation
» Applicability Policy and Organisation
» Approved Maintenance Organizations AMOs
» Foreign Approved Maintenance Organizations FAMOs
» Airworthiness Engineering Organizations AEOs
» Conduct of the Audit Team Use of Checklists
» Maintenance Policy Manual or Maintenance Control Manual
» Technical PublicationsLibrary Approved Maintenance Organizations
» Personnel Approved Maintenance Organizations
» Maintenance Training Approved Maintenance Organizations
» Technical Records Approved Maintenance Organizations
» FuellingDefuelling Approved Maintenance Organizations
» De-Icing ProceduresEquipment Approved Maintenance Organizations
» Service Difficulty Reporting Approved Maintenance Organizations
» Defect Control Deferral Approved Maintenance Organizations
» Sample Aircraft for Conformance
» Sub-base Approved Maintenance Organizations
» Company Quality Audits Approved Maintenance Organizations
» Receiving Inspections Approved Maintenance Organizations
» Maintenance Schedule Approved Maintenance Organizations
» ReliabilityMaintenance Development Programs Approved Maintenance Organizations
» SupportOverhaul Shops Approved Maintenance Organizations
» Control of PartsMaterial Approved Maintenance Organizations
» TestingMeasuring Equipment Maintenance Contracts
» Airworthiness DirectivesService Bulletin Compliance
» Corrosion ControlAging Aircraft Approved Maintenance Organizations
» Non-Destructive Testing Weight and Balance Control
» BorrowingPooling of Parts Certification of Components
» Storage Facilities Approved Maintenance Organizations
» Category IIIII Maintenance Program
» Extended Range Operations EROPs
» Maintenance Program Maintenance Test and Ferry Flights
» Enroute Inspection Air Operator
» Quality Control Curriculum Common Requirements
» Examination Graduation Certificates Common Requirements
» Instructors Organizational Chart Common Requirements
» Facilities CAR 423.08 3a Common Requirements
» Prerequisites and Curriculum Equipment General Aircraft and Avionics
» Facilities General Aircraft and Avionics
» Reference Material Class Size
» Advisory Committee Basic Training Requirements
» Prerequisites and Curriculum Type Training Requirements
» Equipment Type Training Requirements
» Facilities Type Training Requirements
» Mixing of Adhesives Job Cards
» Cleaning Handling Bonding Process
» Loading of Parts into Fixtures
» Certification and Control of Hot Presses, Autoclaves and Jigs References Curing References
» Inspection of Bonded Parts References
» Cadmium Plating Chemical Milling of Aluminum Alloys
» Chemical Conversion Coatings for Aluminum Alodine: Brush
» ChromicSulphuric Acid Anodizing of Aluminum Copper Plating
» Dichromate Treatment of Magnesium Alloys
» Heat Treatment of Aluminum Alloys Air Furnace Heat Treatment of Aluminum Alloys Salt Bath
» Heat Treatment of Steel Sulphuric AcidSodium Dichromate Etch
» Vapour Degreasing Specification Materials
» Aluminum Brazing Dip Brazing
» Fusion Welding Manufacturing Processes
» Metallic Arc Welding Tungsten Inert Gas TIG Shielded-Arc Welding
» CertificationQualification of NDT Personnel
» Eddy Current Inspection Manufacturing Processes
» Liquid Penetrant Inspection Manufacturing Processes
» Magnetic Particle Inspection Manufacturing Processes
» Radiographic Inspection Manufacturing Processes
» Ultrasonic Inspection Manufacturing Processes
» Non-Conforming Material Review Board MRB
» Special Processes Sub-Contractor and Supplier Control
» Production Control System Manual PCSM
» Control of PartsMaterial Distributors
» Recertification of Components Distributors
» Storage Facilities Facilities Distributors
» Engineering Procedures ManualDesign Approval Procedures EPMDAPM
» Technical PublicationsLibrary Airworthiness Engineering Organization
» Personnel Records Airworthiness Engineering Organization
» Quality Audits Airworthiness Engineering Organization
» Data Review Airworthiness Engineering Organization
» Airworthiness Inspection Representative AIR
» Maintenance Policy Manual MPM
» Engineering - Design, Development and Review
» Personnel Avionics Approved Maintenance Organizations and
» Technical Data Control Avionics Approved Maintenance Organizations and
» Control of PartsMaterial Receiving Inspections
» Sub-Contracting and Supplier Control Testing
» Sample Units for Conformance Sample Aircraft for Conformance if applicable
» StorageQuarantine Avionics Approved Maintenance Organizations and
» Inspection Records Avionics Approved Maintenance Organizations and
» Workshop - General Battery Shop LeadAcid CAA EEL1-1
» Battery Shop Nicad CAA EEL1-3 Shipping
» Technical PublicationLibrary Avionics Approved Maintenance Organizations and
» Software Quality Assurance SQA if applicable Electrostatic Sensitive Device ESD
» Testing and Measuring EquipmentSpecial Tools
» Mandatory Reporting of Defects
» Technical Training Standards Avionics Approved Maintenance Organizations and
» OP-10 Flight Documentation Applicability
» OP-11 Aircraft Inspection OP-12 Aircraft Documentation
» OP-13 Minimum Equipment List OP-14 Cabin Safety
» OP-15 Flight Attendant Training Program
» OP-16 Flight Attendant Training Records
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