EASA Module 13 cheat sheet

Part-66 licence categories: A (line maintenance, limited certification), B1 (mechanical), B2 (avionics), B2L (light aircraft avionics), B3 (light aircraft mechanical), C (base maintenance management, certified under Part-145/Part-CAMO).

Category A licence holders may certify line maintenance tasks they have been authorised for, but may not certify base maintenance or issue certificates of release to service for major maintenance.

Basic experience requirements (typical): A - 1 year (with Part-147 training) or 3 years (without); B1.1/B2 - 2 years with Part-147 or 5 years without; B3 - 1 year with Part-147 or 3 years without; C - 3 years as B1/B2 or 5 years in civil aircraft maintenance.

Part-66 licence validity is 5 years; to renew, the holder must show 6 months of maintenance experience in the preceding 24 months or complete approved refresher training.

A Part-66 licence is not a maintenance authorisation by itself: the holder must also receive a company certification authorisation from a Part-145 or Part-CAMO organisation.

Type ratings are endorsed on B1/B2/B3 licences for specific aircraft types; the first type rating requires a Part-147 type course or equivalent, and each additional type requires differences or full course training.

Continuing airworthiness (Part-M/Part-ML) requires an airworthiness review at least every 12 months for aircraft above the light aircraft threshold, and the airworthiness review certificate (ARC) is valid 12 months.

Aircraft maintenance programme tasks must be performed within the tolerances stated in the programme; the operator is responsible for the approved maintenance programme under Part-M/Part-ML.

Part-CAMO replaced Part-M Subpart G for continuing airworthiness management organisations; it covers CAMO approval, airworthiness review, and continuing airworthiness management.

Part-CAO is the combined airworthiness organisation for light aircraft (below the thresholds in Part-ML), combining continuing airworthiness management and limited maintenance.

A CAMO must have a continuing airworthiness management exposition (CAME) approved by the competent authority, defining scope, procedures, and responsibilities.

Airworthiness review staff must be independent of the day-to-day maintenance management of the aircraft they review; they need at least 5 years of continuing airworthiness experience (or equivalent).

The airworthiness review certificate (ARC) is issued for 12 months; it may be extended once for up to 12 months under defined conditions, but not renewed without a new review.

A CAMO must maintain a record system for each aircraft covering airframe, engines, propellers, and components, retained for the periods specified in Part-M/Part-CAMO.

Part-CAO organisations must be approved by the competent authority and must have a maintenance programme and a continuing airworthiness management exposition (CAME) appropriate to the scope.

Major modifications require approval by the competent authority (or EASA) via a supplemental type certificate (STC) or design change approval, before embodiment.

Part-145 approval covers base maintenance, line maintenance, and component maintenance; the organisation must have a maintenance organisation exposition (MOE) approved by the competent authority.

A Part-145 organisation must have a quality system (independent quality function) with a quality manager who has direct access to the accountable manager.

The accountable manager is responsible for ensuring all maintenance is carried out to the required standards and that resources are available.

Certifying staff must be qualified under Part-66 and hold a company authorisation; the organisation must maintain a record of certifying staff qualifications and authorisations.

Maintenance records must be retained for at least 3 years after the certificate of release to service (CRS) is issued, or as required by the competent authority.

A certificate of release to service (CRS) must be issued after maintenance, certifying that the work was carried out in accordance with approved data and that the aircraft is airworthy.

Part-145 organisations must have a maintenance programme and procedures for receiving, storing, and issuing parts, with traceability to the manufacturer or approved source.

Findings from audits must be corrected within a defined timeframe; the organisation must notify the competent authority of any significant findings and changes to the organisation.

Part-147 approval covers basic training, type training, and examinations for Part-66 licences; the organisation must have a training organisation exposition (TOE) approved by the competent authority.

Part-147 training courses must include theoretical training, practical training, and examinations, with a syllabus approved by the competent authority.

Basic training courses must cover the Part-66 appendix modules; the duration and content must be sufficient to meet the knowledge requirements for the licence category.

Type training courses must cover the specific aircraft type and include both theoretical and practical elements; the practical element must be performed on the actual aircraft or approved simulator.

Examinations must be conducted under controlled conditions, with a pass mark of at least 75% for each module, and records retained for at least 5 years.

Instructors and examiners must be appropriately qualified and experienced; the organisation must maintain records of their qualifications and training.

Part-147 organisations must have a quality system and a procedure for handling findings, including corrective actions and notification to the competent authority.

A Part-147 certificate of recognition is issued to students who complete the course; this certificate is used to demonstrate compliance with Part-66 basic training requirements.