Consolidated Best Practices-All Domains
Early Engagement & Preparation
- Initiate pre-application meetings to clarify expectations, referencing the EASA MSAT maturity model.
- Use the MSAT maturity model during documentation review to ensure that even at “Present” stage, the organisation demonstrates a structured, coherent management system (MS) rather than fragmented procedures.
- Verify resources-staffing, funding, tools, and training-against key risk areas before approval.
Integrated Oversight & Interface Management
- When multiple certificates are held (e.g., Operator + CAMO + AMO), apply the “one MS = one assessment” principle (MSAT p.9).
- Review documented arrangements between certificate holders (e.g., Airport-ATC, Operator-CAMO, AMO-CAMO).
- Require an interface matrix showing how CAMO processes link with each client operator and AMO, including responsible persons, communication channels, and escalation points for safety-critical issues.
Two-Stage Certification Oversight
Stage 1-Desk-based Documentation & Policy Validation:
- Conduct detailed documentation review.
- Review runway safety team meeting minutes and evidence of recent joint hazard reviews with ATC and airline operators.
Stage 2-On-site Practical Implementation Readiness:
- Conduct facility inspections and on-site interviews.
- Include joint ERP interoperability exercises observed by CA inspectors to test response speed, decision-making, and communication effectiveness.
Validation Through Interviews
- Interview the Accountable Manager, Safety Manager, and Compliance Monitoring Manager to validate that the MS is understood and ready for implementation.
- Conduct joint interviews with the CAMO Safety Manager and Operator’s Continuing Airworthiness Postholder, and separately with a Part-145 Quality Manager, to confirm alignment of procedures and responsibilities.
- Interview line maintenance staff, supervisors, and compliance auditors to validate understanding and application of MOE processes.
Live or Simulated Scenario Testing
- Require a demonstration of the reporting chain in a live or simulated case-from occurrence detection to final risk control measure-before certification.
- Require the CAMO to demonstrate a full defect-to-corrective-action trace using a simulated defect report, showing communication with both the operator and maintenance organisation.
- Require the AMO to demonstrate a full maintenance workflow in a practical scenario-from work order receipt to Certificate of Release to Service (CRS)-to verify that procedures match real practice.
Subcontractor Oversight Verification
- Request evidence of recent subcontractor oversight activities-such as audit reports, corrective action follow-ups, and safety meeting records-to confirm active management of external risks.
Best Practices Checklist – All Domains
Early Engagement & Preparation
- Hold pre-application meetings to clarify expectations (reference EASA MSAT maturity model).
Use MSAT maturity model during documentation review to ensure structured, coherent MS.
Verify resources (staffing, funding, tools, training) against identified key risk areas before approval.
Integrated Oversight & Interface Management
- Apply “one MS = one assessment” principle for organisations with multiple certificates.
- Review documented interface arrangements (e.g., Airport-ATC, Operator-CAMO, AMO-CAMO).
- Confirm presence of an interface matrix linking CAMO processes to each operator and AMO, showing responsible persons, communication channels, and escalation points.
Two-Stage Certification Oversight
Stage 1-Desk-based Documentation & Policy Validation
Conduct in-depth documentation review.
Review runway safety team minutes and recent joint hazard reviews with ATC and operators.
Stage 2-On-site Practical Implementation Readiness
Conduct facility inspections and on-site interviews.
Observe a joint ERP interoperability exercise to test response speed, decision-making, and communication effectiveness.
Validation Through Interviews
- Interview Accountable Manager, Safety Manager, Compliance Monitoring Manager for MS readiness.
- Conduct joint interviews with CAMO Safety Manager & Operator Continuing Airworthiness Postholder, plus a Part-145 Quality Manager, for alignment of procedures.
- Interview line maintenance staff, supervisors, compliance auditors to confirm understanding and application of MOE processes.
Live or Simulated Scenario Testing
- Require reporting chain demonstration (occurrence detection to final risk control measure).
- Require CAMO defect-to-corrective-action trace using a simulated defect report, showing full communication chain.
- Require AMO maintenance workflow demonstration (work order receipt to CRS).
Subcontractor Oversight Verification
- Review subcontractor oversight evidence (audit reports, corrective actions, safety meeting records) to confirm active risk management.
Next Steps
Sofema Aviation Services (SAS) provides the following 2 day course available as Classroom or Webinar-Using The EASA Management System Assessment Tool (EASA MSAT)-2 Days.
Tags:
Best Practice, safety meeting records, subcontractor oversight evidence, responsible persons, communication effectiveness, Two-Stage Certification, staffing, MSAT, Communication Channels, CAMO, Corrective Actions, audit reports, ATC, Decision Making, SAS blogs, Documentation, Training, Part 145
