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Guides

EASA regulations, explained and applied

Ordered, citation-verified series that take you from first principles to working practice, grouped by the part of the operation they govern. Every regulation quote is reproduced verbatim from the live EASA library, with its full source reference.

58 guides in 12 seriesLast updated 25 Sep 2026RSS feed

Regulatory foundations

How the rulebooks themselves work — reading the EASA system of implementing rules, AMC, GM and CS, and how the FAA, UK CAA and other national systems compare.

Aviation Regulatory Systems

5 guides · 40 min

How to read aviation regulations and how the major regulatory systems compare — the EASA structure of implementing rules, AMC, GM and certification specifications, the FAA's 14 CFR, and the UK CAA, GCAA, GACA and Transport Canada systems that grew from the same ICAO root.

  1. 1How to Read EASA Rules: IR, AMC, GM and CS13 min
  2. 2EASA Regulatory Map: Which Regulation Applies7 min
  3. 3EASA vs FAA: A Part-by-Part Comparison10 min
  4. 4UK CAA After Brexit, Compared with EASA5 min
  5. 5GCAA, GACA and Transport Canada Compared5 min

Airworthiness and maintenance

How an aircraft is designed, certified and kept fit to fly — from initial type certification, through the approved maintenance organisation, to the records that release it back to service.

EASA Continuing Airworthiness

8 guides · 91 min

Continuing airworthiness under Regulation (EU) No 1321/2014 — Part-M responsibilities and the aircraft maintenance programme, reliability monitoring, airworthiness reviews and the ARC, the Part-CAMO/CAO management organisation, maintenance release to service and records, airworthiness directives, and component and life-limited part records.

  1. 1Continuing Airworthiness: Part-M and Part-CAMO16 min
  2. 2Aircraft Maintenance Programme under Part-M8 min
  3. 3EASA Reliability Programmes and Monitoring3 min
  4. 4Airworthiness Reviews and the ARC11 min
  5. 5CAMO and CAO Continuing Airworthiness Bodies5 min
  6. 6Part-M: Release to Service and Records11 min
  7. 7EASA Airworthiness Directives: AD Compliance Explained20 min
  8. 8LLP Back-to-Birth Records and Component Tracking (M.A.305)17 min

EASA Part-145 Maintenance Organisation

6 guides · 45 min

The EASA Part-145 approved maintenance organisation under Regulation (EU) No 1321/2014 — terms of approval and privileges, certifying and support staff, maintenance data and performing the work, certification of maintenance and records, the maintenance organisation exposition (MOE), and tool control and calibration under 145.A.40.

  1. 1Part-145: The Approved Maintenance Organisation4 min
  2. 2Part-145 Certifying and Support Staff7 min
  3. 3Part-145 Maintenance Data and Performance8 min
  4. 4Part-145 Maintenance Certification and Records6 min
  5. 5The Maintenance Organisation Exposition (MOE)4 min
  6. 6Tool Control in Aviation Maintenance: 145.A.40 Calibration16 min

EASA Part-21 Initial Airworthiness

6 guides · 36 min

Initial airworthiness under Regulation (EU) No 748/2012 (Part-21) — the design-to-service lifecycle, certification specifications and ETSO authorisations, type certificates and the TCDS, design and production organisations, certificates of airworthiness and permits to fly, and parts and the EASA Form 1.

  1. 1Airworthiness Lifecycle: Design to Service4 min
  2. 2EASA Certification Specifications and ETSO4 min
  3. 3Type Certification: TC, TCDS and Changes7 min
  4. 4DOA and POA: Design and Production Organisations6 min
  5. 5Certificates of Airworthiness and Permits to Fly8 min
  6. 6Parts, Appliances and the EASA Form 17 min

Licensing and training

The people who sign for the aircraft and fly it — the engineer and flight-crew licences, and the training organisations that qualify and examine them.

EASA Part-66 Aircraft Maintenance Licence

5 guides · 38 min

The EASA Part-66 aircraft maintenance licence under Regulation (EU) No 1321/2014 — licence categories and privileges, the basic-knowledge module examinations, experience routes and application evidence, and keeping the licence valid through type ratings and renewal.

  1. 1The EASA Part-66 Aircraft Maintenance Licence6 min
  2. 2Part-66 Categories: A, B1, B2, B3 and C7 min
  3. 3Part-66 Modules and Basic Knowledge Exams8 min
  4. 4Part-66 Licence: Experience and How to Apply10 min
  5. 5Part-66 Validity: Type Ratings and Renewal7 min

EASA Part-147 Maintenance Training Organisations

3 guides · 13 min

The EASA Part-147 maintenance training organisation under Regulation (EU) No 1321/2014 — approval, the MTOE and privileges, basic training and knowledge examinations, aircraft type and task training, with a link to the Part-66 experience and application guide.

  1. 1Part-147 Maintenance Training Organisation5 min
  2. 2Part-147 Basic Training, Exams and Assessment4 min
  3. 3Aircraft Type and Task Training under Part-1474 min

EASA Flight Crew Licensing

5 guides · 30 min

Flight crew licensing under Part-FCL of Regulation (EU) No 1178/2011 — the LAPL, PPL, CPL, MPL and ATPL licence ladder, theoretical-knowledge exams and the skill test, class, type and instrument ratings, and keeping the licence valid through revalidation, recency and medical.

  1. 1The Path to an EASA Flight Crew Licence4 min
  2. 2EASA Pilot Licences: LAPL, PPL, CPL, MPL, ATPL5 min
  3. 3EASA Pilot Exams: Theory and the Skill Test7 min
  4. 4Pilot Ratings: Class, Type and Instrument5 min
  5. 5Pilot Revalidation, Recency, Language, Medical9 min

Operations and safety

Running the operation and managing its safety and compliance — safety management and SPIs, audits and findings, air operator certification, occurrence reporting under Just Culture, and information-security management.

Safety Management Systems

2 guides · 34 min

Safety management under the EASA management-system rules (145.A.200, CAMO.A.200 and ORO.GEN.200) — safety performance indicators and monitoring, hazard identification and safety risk management, with a worked SPI set and a worked risk register.

  1. 1EASA Safety Performance Indicators: What the Rules Say17 min
  2. 2Hazard Identification and Safety Risk Management under EASA17 min

Audits, Findings and Compliance Monitoring

3 guides · 51 min

How EASA findings work and how organisations answer them — level 1 and level 2 findings and observations, root cause analysis and corrective action plans under 145.A.95, CAMO.A.150 and ORO.GEN.150, and the compliance monitoring audit programme.

  1. 1EASA Level 1 and Level 2 Findings: Rules and Deadlines17 min
  2. 2Root Cause Analysis and CAPs for EASA Audit Findings16 min
  3. 3Compliance Monitoring Audit Programme: Part-145 and CAMO18 min

EASA Air Operations

6 guides · 53 min

Commercial air transport under Regulation (EU) No 965/2012 — the structure of Part-CAT and the operator's responsibilities, getting and holding an Air Operator Certificate, the operations manual and the Part-ORO management system, flight time limitations and crew, the Part-SPA specific approvals that extend an operator's privileges, and ramp inspection (SAFA/SACA) findings and the operator's reply.

  1. 1EASA Air Operations: Rules, AOC and Duties6 min
  2. 2Apply for an EASA Air Operator Certificate7 min
  3. 3Part-ORO Operations Manual and Management System5 min
  4. 4EASA Flight Time Limitations and Crew Duty14 min
  5. 5Part-SPA Specific Approvals: LVO, PBN, ETOPS5 min
  6. 6SAFA Ramp Inspection Findings: Cat 1, 2, 3 and Your Reply16 min

EASA Occurrence Reporting

5 guides · 32 min

Occurrence reporting under Regulation (EU) No 376/2014 — what to report, the 72-hour deadline and data quality, Just Culture protection for reporters, and closing the loop through analysis and follow-up in your SMS.

  1. 1EASA Occurrence Reporting under 376/20148 min
  2. 2Mandatory vs Voluntary Occurrence Reporting6 min
  3. 3How to File an Occurrence Report in 72 Hours6 min
  4. 4Just Culture and Occurrence Reporter Protection7 min
  5. 5Occurrence Analysis and Follow-up in the SMS5 min

Part-IS Implementation

4 guides · 43 min

Implementing the EASA information-security regulations — (EU) 2022/1645 and (EU) 2023/203 — in maintenance, CAMO and operations organisations: from first concepts to shop-floor practice.

  1. 1Part-IS Requirements, Scope and Deadlines16 min
  2. 2Aviation Information Security, Explained10 min
  3. 3Aviation Cyber Incidents and Their Lessons8 min
  4. 4Part-IS Shop-Floor Practice and Reporting9 min