EASA Module 13 study materials
EASA Module 13 study resources

EASA Module 13 study plan

EASA Module 13 · Give each week a clear focus.

8 weeks · About 6 hours per week

Week 1

Aircraft Maintenance and Continuing Airworthiness (Part-66 domain)

  • Map the Part-66 licence categories (A, B1, B2, B3, C, and the L categories) and state for each the certification privileges, the basic experience requirement, and which aircraft or system types it covers, writing the comparison in your own words.

  • Trace the continuing airworthiness chain from the type-certificate holder through the design approval, the operator, and the maintenance organisation, and explain in writing who is responsible at each link for airworthiness data reaching the line engineer.

  • List the components of a maintenance programme (scheduled tasks, thresholds, intervals, escalation, and the operator's responsibility to have it approved) and explain how a task is added, deleted, or escalated under the applicable Part-66 domain rules.

  • Distinguish airworthiness directives, service bulletins, and mandatory continuing airworthiness information, and state the compliance obligation and record-keeping duty attached to each.

  • Define the categories of maintenance (scheduled, unscheduled, line, base) and match each to the Part-66 licence holder who may certify it.

Your checkpoint

A one-page A3 mind map of the continuing airworthiness chain with every actor, document, and responsibility labelled, plus a 20-term glossary written from memory and checked against your notes.

Week 2

Aircraft Maintenance and Continuing Airworthiness (Part-66 domain)

  • Explain the role of the continuing airworthiness management exposition and list the information a certifying engineer must be able to find in it.

  • Describe the aircraft technical log, the certificate of release to service, and the maintenance record requirements, and state how long each record must be retained and by whom.

  • Work through the mass and balance, and configuration-deviation, reporting duties that fall on maintenance staff, and state who is notified and when.

  • Explain the purpose of the airworthiness review certificate, who may issue it, and how the review interacts with the maintenance programme and defect history.

Your checkpoint

A written 600-word case study of one aircraft's annual cycle (check, defect, AD compliance, release, airworthiness review) with every responsible person and document named and every record retention period stated.

Week 3

Aircraft Maintenance and Continuing Airworthiness (Part-66 domain) & Continuing Airworthiness Organisations (Part-CAMO, Part-CAO)

  • Transition from the Part-66 domain into Part-CAMO by mapping each continuing airworthiness management task to the CAMO function that owns it.

  • Compare Part-CAMO with Part-CAO and state, for a small operator, which organisation is appropriate and why, giving at least three distinguishing criteria.

  • List the Part-CAMO approval scope items (aircraft types and the continuing airworthiness management tasks) and explain how a scope is extended or varied.

  • Explain the role of the continuing airworthiness management organisation's safety and quality interface and how findings are raised and closed.

Your checkpoint

A two-column comparison table of Part-CAMO versus Part-CAO covering approval basis, scope, personnel requirements, and subcontracting, with at least 12 rows completed from memory and then verified.

Week 4

Continuing Airworthiness Organisations (Part-CAMO, Part-CAO)

  • Describe the nominated persons required by a continuing airworthiness management organisation and state the qualifications and responsibilities of each.

  • Explain the maintenance programme development and approval process a CAMO performs, including the reliability programme where applicable.

  • Outline the CAMO's quality system, its audit cycle, and how it interfaces with the competent authority's oversight.

  • Explain subcontracting and the conditions under which a CAMO may contract out continuing airworthiness management tasks, and the responsibility that remains in-house.

Your checkpoint

A mock CAMO exposition table of contents annotated in your own words, with a short note against each section saying what an auditor would look for.

Week 5

Maintenance Organisations (Part-145)

  • Map the Part-145 approval classes and ratings to the maintenance they authorise, and state what an organisation must hold to release a given task.

  • Explain the Part-145 personnel requirements, including the accountable manager, the nominated postholders, and the certifying staff qualification routes.

  • Describe the certifying staff authorisation process, the scope of the authorisation, and the conditions under which it may be limited or withdrawn.

  • Explain the Part-145 quality system, the independent audit function, and the finding classification and closure process.

Your checkpoint

A one-page flowchart of the certifying staff authorisation route from recruitment to first release, with every gate (experience, type training, assessment, authorisation) and the evidence required at each.

Week 6

Maintenance Organisations (Part-145) & Continuing Airworthiness Organisations (Part-CAMO, Part-CAO)

  • Explain the maintenance organisation exposition, its approval, and the change notification duties to the competent authority.

  • Describe the interface between a Part-145 organisation and a CAMO, covering work orders, task cards, deferred defects, and release back to the operator.

  • Explain the conditions for issuing a certificate of release to service, including the role of the approved data and the independent inspection where required.

  • Outline the Part-145 requirements for facilities, tooling, calibration, and stores, and how each is audited.

Your checkpoint

A 500-word written procedure for handling a defect found during a scheduled check, from discovery through deferral or rectification to release, naming every document and signatory.

Week 7

Maintenance Training Organisations (Part-147)

  • Explain the Part-147 approval scope for basic training, type training, and examinations, and state what each approval authorises.

  • Describe the Part-147 personnel and facility requirements, including instructors, examiners, and the knowledge and practical assessment standards.

  • Outline the Part-147 quality system and the record-keeping duties for trainee records, examination results, and certificates issued.

  • Explain how a Part-147 certificate of recognition is used in the Part-66 licence application and what the training organisation must certify.

Your checkpoint

A sample Part-147 training syllabus outline for one aircraft type, covering knowledge modules, practical elements, examination, and the records generated, written from your own understanding.

Week 8

Aircraft Maintenance and Continuing Airworthiness (Part-66 domain) & Continuing Airworthiness Organisations (Part-CAMO, Part-CAO) & Maintenance Organisations (Part-145) & Maintenance Training Organisations (Part-147)

  • Reconcile the four domains by building a single responsibility matrix showing, for ten common maintenance events, which organisation and which person owns each step.

  • Sit two full timed mock papers under exam conditions and record your score per domain.

  • Re-study only the two weakest sub-topics identified by the mock results and write a one-page correction sheet for each.

  • Recite the key definitions (continuing airworthiness, maintenance, release to service, airworthiness review) from memory and check them word for word against the regulation text.

Your checkpoint

A completed responsibility matrix plus a mock exam score sheet showing per-domain percentages, with both mock scores at or above 75 percent overall and no domain below 65 percent.

Milestones

Week 2: Without notes, explain the full continuing airworthiness chain and the record retention rules to another person for ten minutes; they should be able to repeat the chain back to you.

Week 4: Score at least 70 percent on a 30-question self-written test covering domains 1 and 2, and correctly state the Part-CAMO versus Part-CAO distinction in under two minutes.

Week 6: Correctly describe the Part-145 certifying staff authorisation route and the CRS conditions in writing, with no reference material, and pass a 20-question domain 3 self-test at 70 percent or above.

Week 8: Achieve at least 75 percent overall on two timed full mock papers, with no single domain below 65 percent, and have every correction sheet reviewed and closed.