EASA Certification Services and Type Certificate Support

Endeavor Elements provides comprehensive EASA (European Union Aviation Safety Agency) certification services for aircraft, engines, propellers, and aviation products. Our team navigates EASA Part-21 requirements, certification specifications (CS), and acceptable means of compliance (AMC) to achieve European type certificate approval.

EASA Type Certificate Process

EASA type certificates are issued under Part-21 Subpart B for aircraft, engines, and propellers meeting applicable certification specifications. Our platform supports:

  • Certification programme development and planning
  • Certification basis establishment with applicable CS standards
  • Compliance demonstration plan preparation
  • Type certification data sheet (TCDS) development
  • Master minimum equipment list (MMEL) coordination
  • Aircraft flight manual (AFM) certification
  • Instructions for continued airworthiness (ICA)
  • EASA certification review item (CRI) tracking

EASA Certification Specifications

CS-23 - Normal, Utility, Aerobatic, and Commuter Aeroplanes

CS-23 establishes airworthiness standards for small aeroplanes with maximum 19 passenger seats and maximum 8,618 kg (19,000 lb) takeoff weight. Amendment 5 (effective 2021) introduced performance-based standards aligned with FAA Part 23, simplifying certification for general aviation aircraft.

CS-25 - Large Aeroplanes

CS-25 governs certification of large transport category aircraft. These extensive requirements address flight characteristics, structures, design and construction, powerplant installation, equipment and systems, operating limitations, and special factors. CS-25 programs require multi-year coordination with EASA certification teams.

CS-27 - Small Rotorcraft

CS-27 establishes airworthiness standards for small rotorcraft with maximum 3,175 kg (7,000 lb) weight and 9 or fewer passenger seats. Requirements address rotorcraft-specific considerations including autorotation, height-velocity envelope, and rotor system design.

CS-29 - Large Rotorcraft

CS-29 governs large rotorcraft certification including transport helicopters. These requirements are more extensive than CS-27 and include additional systems requirements, crashworthiness standards, and operational considerations for multi-engine helicopters.

Acceptable Means of Compliance (AMC) and Guidance Material (GM)

EASA publishes AMC and GM to assist applicants in demonstrating compliance with certification specifications. Our platform helps you:

  • Identify applicable AMC for each certification specification
  • Develop alternative means of compliance when AMC is not suitable
  • Prepare substantiation data for alternative compliance methods
  • Track EASA acceptance of proposed compliance methods
  • Manage compliance matrix linking requirements to evidence
  • Coordinate special condition development for novel designs

Design Organisation Approval (DOA)

Design Organisation Approval under Part-21 Subpart J allows organisations to approve design changes on behalf of EASA. Benefits include:

  • Streamlined approval process for design changes
  • Authority to issue approved design data
  • Reduced EASA direct involvement in minor changes
  • Faster time to market for modifications
  • Enhanced design control and quality systems

Our team supports DOA establishment, DOA manual development, privilege application, and ongoing compliance with Part-21 Subpart J requirements.

EASA and FAA Bilateral Agreement

The FAA-EASA bilateral safety agreement facilitates mutual recognition of certifications between the United States and European Union. Our platform supports concurrent certification:

  • Cross-referenced compliance matrices for FAA and EASA requirements
  • Validation certification project management
  • Equivalent safety finding coordination
  • Technical differences identification and resolution
  • Simultaneous FAA and EASA submission coordination
  • Import/export certificate of airworthiness support

EASA Supplemental Type Certificate (STC)

EASA STCs approve modifications to type-certified products. Common STC applications include:

Modification Types

  • Cabin interior modifications
  • Avionics upgrades and installations
  • Performance enhancement modifications
  • Cargo conversion projects
  • Engine replacement programs
  • Structural repairs and reinforcements

STC Process Support

  • Classification determination (minor/major)
  • Compliance demonstration planning
  • Design data package preparation
  • Flight test coordination if required
  • Instructions for continued airworthiness
  • EASA Form 1 issuance support

EASA Part-M Continuing Airworthiness

EASA Part-M establishes continuing airworthiness requirements for aircraft registered in EASA member states. Our platform supports:

  • Continuing airworthiness management organisation (CAMO) compliance
  • Airworthiness review certificate (ARC) preparation
  • Aircraft maintenance programme development
  • EASA AD compliance tracking and management
  • Technical records management per Part-M requirements
  • Certificate of release to service (CRS) documentation

EASA Part-145 Approved Maintenance Organisation

Part-145 governs approved maintenance organisations performing maintenance on EASA-registered aircraft. Our quality management support includes:

  • Part-145 approval application preparation
  • Maintenance organisation exposition (MOE) development
  • Quality system establishment and documentation
  • Human factors and SMS integration
  • Continued surveillance compliance
  • Technical records and release to service procedures

Navigate EASA Certification Successfully

Whether pursuing EASA type certificate, STC, DOA approval, or Part-M compliance, our platform and engineering team provide expert guidance through European certification requirements. Aviation engineers can use our platform to efficiently respond to airline RFQs and certification requests. Schedule a consultation to discuss your project.