Part 145

Part 145
Name	Part 145
Caption	Aviation maintenance regulatory framework
Formation	20th century
Type	Aviation maintenance regulation
Headquarters	Varies by jurisdiction
Region served	Global aviation industry
Language	Multilingual

Part 145.

Part 145 denotes a regulatory framework used by aviation authorities to govern the certification, approval, and oversight of repair stations and maintenance organizations. Adopted in various forms by authorities such as the Federal Aviation Administration, the European Union Aviation Safety Agency, and other national civil aviation administrations, Part 145 establishes requirements for facilities, personnel, recordkeeping, and quality systems to ensure the airworthiness of aircraft and components. The rules interface with international standards set by the International Civil Aviation Organization and influence operators including American Airlines, Lufthansa, Air France, British Airways, and maintenance providers such as ST Aerospace, AAR Corporation, and SR Technics.

Overview and Scope

Part 145 frameworks typically cover the approval of repair stations, scope of work for maintenance and overhaul, and limitations on performance of inspections and modifications. Jurisdictions apply Part 145 to organizations performing line maintenance, base maintenance, component repair, and specialized services for manufacturers like Boeing, Airbus, Embraer, Bombardier Aerospace, and Lockheed Martin. The scope intersects with type certificates issued by authorities including the Civil Aviation Authority (United Kingdom), the Transport Canada Civil Aviation, and the Directorate General of Civil Aviation (India). Applicability extends to maintenance on airframes, engines produced by General Electric, Rolls-Royce, and Pratt & Whitney, avionics from Honeywell International and Rockwell Collins, and component work traced through standards influenced by SAE International and RTCA, Inc..

Regulatory Requirements

Regulatory requirements in Part 145 cover facility infrastructure, tooling calibrated per institutions like National Institute of Standards and Technology, personnel qualifications linked to certifications such as those from Civil Aviation Safety Authority (Australia) and Japan Civil Aviation Bureau, and training programs often developed with manufacturers like Dassault Aviation and Sikorsky Aircraft. Documentation and recordkeeping must satisfy retention periods promulgated by authorities including the Federal Aviation Administration and the European Commission. Quality assurance systems align with international standards like those referenced by International Organization for Standardization and operational procedures often cross-reference manuals from Airbus Helicopters and Textron Aviation.

Certification and Approval Process

The certification and approval process for a Part 145 organization involves submission of manuals, maintenance data, training records, and facility inspections to the relevant aviation authority such as the European Union Aviation Safety Agency or the Federal Aviation Administration. Applicants coordinate with national registries including the Civil Aviation Authority of Singapore and the Federal Office of Civil Aviation (Switzerland) to obtain an approval certificate. Oversight may include demonstration inspections involving operators like Delta Air Lines or third-party auditors employed by multinational firms including Deloitte and KPMG that provide compliance advisory services. Amendments to approvals, for work on types such as the Boeing 737 or Airbus A320, require supplemental submissions and may trigger coordinated reviews with type certificate holders like Boeing and Airbus.

Continued Airworthiness and Maintenance Standards

Continued airworthiness obligations under Part 145 mandate adherence to maintenance schedules published by type certificate holders including Boeing and Airbus, service bulletins from OEMs such as GE Aviation and Rolls-Royce, and airworthiness directives issued by authorities including the Federal Aviation Administration and the European Union Aviation Safety Agency. Maintenance standards require qualified personnel with licenses equivalent to those issued by bodies like the Civil Aviation Safety Authority (Australia) or the Air Accidents Investigation Branch-linked recommendations. Records of component repair and life-limited parts track serial numbers and service histories often exchanged with suppliers like MTU Aero Engines and component shops affiliated with Safran.

Compliance, Inspections, and Enforcement

Enforcement mechanisms under Part 145 include surveillance, spot inspections, findings, corrective action plans, and in severe cases, suspension or revocation of approvals by authorities such as the Federal Aviation Administration or the European Union Aviation Safety Agency. Investigative actions can be triggered by incidents involving carriers like United Airlines or by safety recommendations from investigative bodies such as the National Transportation Safety Board, the Air Accidents Investigation Branch, and the Transportation Safety Board of Canada. Third-party audits from organizations including Lloyd's Register and Bureau Veritas often complement national oversight. Enforcement actions may reference international agreements like the Chicago Convention and leverage bilateral safety agreements between states.

International Variations and Harmonization

Although many civil aviation authorities base their repair station rules on a Part 145 model, regional differences exist among the Federal Aviation Administration, European Union Aviation Safety Agency, Transport Canada Civil Aviation, and authorities in China Civil Aviation Administration, Civil Aviation Authority of Singapore, and Directorate General of Civil Aviation (India). Harmonization efforts occur through forums such as the International Civil Aviation Organization and bilateral memoranda of understanding between agencies like the FAA and the EASA to facilitate approvals and exchange of surveillance information. Industry associations including the International Air Transport Association and the Aerospace Industries Association advocate for alignment in training, quality systems, and acceptance of maintenance data to support global aviation networks including carriers like Qantas, Emirates, Singapore Airlines, Cathay Pacific, and Air India.

Category:Aviation safety