EASA Part 145 Aircraft Maintenance Organisations

  • An Application for EASA Part 145 MRO
  • An Application for EASA Part M Subpart F MRO
  • Shift-Task Handover Procedures
  • An Application for Maintenance Programme
  • An Application for Issue or Change of Part 145
  • Turkish DGCA and EASA Part 145 Audit Preparation
  • An Application for MOE
  • Shift-Task Handover Procedures
  • Airworthiness Directive (AD) Analysis-Development
  • Service Bulletin Analysis
  • Line Maintenance Procedures
  • An Application for Part 145 Quality Corrective Actions
  • An Application for Post Holder
  • Qualification of Part 145 Certifiying Staff
  • Supplier Evaluation and Subcontract Control
  • Storage, Tagging and Release of Aircraft Components
  • Calculation fo Part 145 Man Power
  • Life Limited / Overhaul Parts List Development
  • Maintenance Planning
  • Assessment of Part 145 Audit Reports
  • Technical Records
  • Contracting Operators

Maintenance tasks on any and all aircraft, performed in order to ensure safety in flight operations, to ensure that the aircraft is ready for the flight, and to reduce costs without compromising on safety factor, are carried out and performed by the Maintenance Organizations authorized by our Directorate General.

Under the authorization granted by our Directorate General, Authorized Maintenance Organizations provide maintenance services such as servicing, checks, repair, modification and overhaul conducted in order to keep the aircraft airworthy as of the time when the aircraft is manufactured till the time when the service life of the same is expired.

SHY 145 Approved Maintenance Organizations: The maintenance organizations authorized to render service to any kind of civil aircraft used in commercial air transportation and big aircraft not used in commercial air transportation, as well as any kind of engines, propellers, parts or devices.

F Maintenance Organizations: The organizations authorized in order to provide maintenance services to the aircraft, maximum take-off weight of which is below 5700 kg, the aircraft which are used in non-commercial air transportation, as well as the components thereof, are designated as "F Maintenance Organizations" under the scope of the Regulation and Instruction on Continued Airworthiness and Maintenance Liability.

PART 0 General Organisation (Operators within the European Union)

  • This section is reserved for those maintenance organisations approved under Part-145 who are also operators within the European Union.

PART 1 Management

  • 1.1 Corporate commitment by the accountable manager.
  • 1.2 Safety and quality policy
  • 1.3 Management personnel
  • 1.4 Duties and responsibilities of the management personnel
  • 1.5 Management organisation chart
  • 1.6 List of certifying staff, support staff and airworthiness review staff
  • 1.7 Manpower resources
  • 1.8 General description of the facilities at each address intended to be approved
  • 1.9 Organisations intended scope of work
  • 1.10 Notification procedure to the competent authority regarding changes to the organisation’s activities/approval/location/personnel
  • 1.11 Exposition amendment procedures including, if applicable, delegated procedures

PART 2 Maintenance Procedures

  • 2.1 Supplier evaluation and subcontract control procedure
  • 2.2 Acceptance/inspection of aircraft components and material from outside contractors
  • 2.3 Storage, tagging and release of aircraft components and material to aircraft maintenance
  • 2.4 Acceptance of tools and equipment
  • 2.5 Calibration of tools and equipment
  • 2.6 Use of tooling and equipment by staff (including alternate tools)
  • 2.7 Cleanliness standards of maintenance facilities
  • 2.8 Maintenance instructions and relationship to aircraft/aircraft component manufacturers’ instructions including updating and availability to staff
  • 2.9 Repair procedure
  • 2.10 Aircraft maintenance programme compliance
  • 2.11 Airworthiness directives procedure
  • 2.12 Optional modification procedure
  • 2.13 Maintenance documentation in use and its completion
  • 2.14 Technical record control
  • 2.15 Rectification of defects arising during base maintenance
  • 2.16 Release to service procedure
  • 2.17 Records for the operator
  • 2.18 Reporting of defects to the competent authority/operator/manufacturer
  • 2.19 Return of defective aircraft components to store
  • 2.20 Defective components to outside contractors
  • 2.21 Control of computer maintenance record systems
  • 2.22 Control of manhour planning versus scheduled maintenance work
  • 2.23 Critical maintenance tasks and error-capturing methods
  • 2.24 Reference to specific maintenance procedures such as -Engine running procedures-Aircraft pressure run proceduresircraft towing procedures-Aircraft taxiing procedures
  • 2.25 Procedures to detect and rectify maintenance errors.
  • 2.26 Shift/task handover procedures
  • 2.27 Procedures for notification of maintenance data inaccuracies and ambiguities, to the type certificate holder
  • 2.28 Production planning procedures
  • 2.29 Airworthiness review procedures and records for ELA1 aircraft not involved in commercial operations
  • 2.30 Development and approval processing for maintenance programmes for ELA2 aircraft not involved in commercial operations

PART L2 Additional Line Maintennace Procedures

  • L2.1 Line maintenance control of aircraft components, tools, equipment, etc.
  • L2.2 Line maintenance procedures related to servicing/fuelling/de-icing, including inspection for/removal of de-icing/anti-icing fluid residues, etc.
  • L2.3 Line maintenance control of defects and repetitive defects
  • L2.4 Line procedure for completion of technical log
  • L2.5 Line procedure for pooled parts and loan parts
  • L2.6 Line procedure for return of defective parts removed from aircraft
  • L2.7 Line procedure for critical maintenance tasks and error-capturing methods

PART 3 Quality System Procedures

  • 3.1 Quality audit of organisation procedures
  • 3.2 Quality audit of aircraft
  • 3.3 Quality audit remedial action procedure
  • 3.4 Certifying staff and support staff qualification and training procedures
  • 3.5 Certifying staff and support staff records
  • 3.6 Quality audit personnel
  • 3.7 Qualifying inspectors
  • 3.8 Qualifying mechanics
  • 3.9 Aircraft or aircraft component maintenance tasks exemption process control
  • 3.10 Concession control for deviation from organisations’ procedures
  • 3.11 Qualification procedure for specialised activities such as NDT welding, etc.
  • 3.12 Control of manufacturers’ and other maintenance working teams
  • 3.13 Human factors training procedure
  • 3.14 Competence assessment of personnel
  • 3.15 Training procedures for on-the-job training as per Section 6 of Appendix III to Part-66 (limited to the case where the competent authority for the Part-145 approval and for the Part-66 licence is the same).
  • 3.16 Procedure for the issue of a recommendation to the competent authority for the issue of a Part-66 licence in accordance with 66.B.105 (limited to the case where the competent authority for the Part-145 approval and for the Part-66 licence is the same).


  • 4.1 Contracting operators
  • 4.2 Operator procedures and paperwork
  • 4.3 Operator record completion


  • 5.1 Sample of documents
  • 5.2 List of Subcontractors as per 145.A.75(b)
  • 5.3 List of Line maintenance locations as per 145.A.75(d)
  • 5.4 List of contracted organisations as per 145.A.70(a)(16)

PART 6 Operators Maintenance Procedures

This section is reserved for those maintenance organisations approved under Part-145 who are also operators.

PART 7 FAA Supplementary Procedures for a FAR part 145 Repair Station

This section is reserved for those maintenance organisations approved under Part-145 who are also certificated as a FAA FAR Part-145 repair station.

The contents of this Part should be based on the Maintenance Annex Guidance (MAG) issued by EASA and the FAA following the agreement between the United States of America and the European Union on cooperation in the regulation of civil aviation safety.

PART 8 Transport Canada Civil Aviation(TCCA) Supplementary Procedures for a CAR 573 Maintenance Organisation

This section is reserved for those Part-145 approved maintenance organisations holding a CAR 573 approval.

The content of this Part should be based on the Maintenance Annex Guidance (MAG) issued by EASA and the TCCA following the agreement on civil aviation safety between the European Union and Canada.


  • 1.1 Table of Contents
  • 1.2 List of Effective Pages
  • 1.3 Record of Amendments
  • 1.4 Amendment Procedures
  • 1.5 Distribution List
  • 1.6 Accountable Manager’s Statement


  • 2.1 Organisations Scope of Work
  • 2.2 General Presentation of the organisation
  • 2.3 Management Personnel• Accountable manager• Senior managers• Duties & Responsibilities of Management Personnel
  • 2.4 Organisation Chart(s)
  • 2.5 Certifying Staff and airworthiness review staff
  • 2.6 Personnel
  • 2.7 Facilities
  • 2.8 Tools Equipment and Material
  • 2.9 Maintenance Data


  • 3.1 Organisational Review
  • 3.2 Organisational Review
  • 3.3 Subcontracting of specialised services
  • 3.4 One time authorisations


  • 4.1 Work order acceptance
  • 4.2 Preparation and issue of work package
  • 4.3 Logistics (Storage of Spares)
  • 4.4 Execution (Implementation Procedures)
  • 4.5 Release to Service – Certifying Staff
  • 4.6 Release to Service – Supervision
  • 4.7 Release to Service - Certificate of Release to Service
  • 4.8 Records
  • 4.9 Airworthiness review procedures and records
  • 4.10 Development and approval processing for maintenance programmes
  • 4.11 Special procedures
  • 4.12 Occurrence Reporting
  • 4.13 Management of Indirect Approval of the manual


  • 5.1 Sample of documents used
  • 5.2 List of maintenance locations
  • 5.3 List of Part 145 or M.A.Subpart F organisations
  • 5.4 List of subcontracted specialised services

Section A Procedure for Aircraft Maintenance Organisations

  • 145.A.25 Facility requirements
  • 145.A.30 Personnel requirements
  • 145.A.35 Certifying Staff and support staff
  • 145.A.36 Records of airworthiness review staff
  • 145.A.40 Equipment, Tools and material
  • 145.A.42 Acceptance of Components
  • 145.A.45 Maintenance Data
  • 145.A.47 Production Planning
  • 145.A.48 Performance of maintenance
  • 145.A.50 Certification of Maintenance
  • 145.A.55 Maintenance Records
  • 145.A.60 Occurrence Reporting
  • 145.A.65 Safety and Quality Policy, maintenance procedures and Quality System
  • 145.A.70 Maintenance Organisation Exposition
  • 145.A.75 Privileges of the organisation
  • 145.A.80 Limitations on the organisation
  • 145.A.85 Changes to the organisation
  • 145.A.95 Findings

Section B Procedure for Competent Authorities

  • 145.B.01 Scope
  • 145.B.10 Competent authority
  • 145.B.15 Organisations located in several Member States
  • 145.B.17 Acceptable means of compliance
  • 145.B.20 Initial approval
  • 145.B.25 Issue of approval
  • Appendix III Approval certificate (EASA Form 3)
  • 145.B.30 Continuation of an approval
  • 145.B.35 Changes
  • 145.B.40 Maintenance organisation exposition (MOE) amendements
  • 145.B.45 Revocation, suspension and limitation of approval
  • 145.B.50 Findings
  • 145.B.55 Record-keeping
  • 145.B.60 Exemptions


  • A1 Aeroplanes above 5 700 kg
  • A2 Aeroplanes 5 700 kg and below
  • A3 Helicopters
  • A4 Aircraft other than A1, A2 and A3
  • 1.5 Distribution List
  • 1.6 Accountable Manager’s Statement


  • B1 Turbine
  • B2 Piston
  • B3 APU

Components other than complete Engines and APUs

  • C1 Air Cond & Press
  • C2 Auto Flight
  • C3 Comms and Nav
  • C4 Doors — Hatches
  • C5 Electrical Power & Lights
  • C6 Equipment
  • C7 Engine — APU
  • C8 Flight Controls
  • C9 Fuel
  • C10 Helicopter — Rotors
  • C11 Helicopter — Trans
  • C12 Hydraulic Power
  • C13 Indicating — recording system
  • C14 Landing Gear
  • C15 Oxygen
  • C16 Propellers
  • C17 Pneumatic & Vacuum
  • C18 Protection ice/rain/fire
  • C19 Windows
  • C20 Structural
  • C21 Water ballast
  • C22 Propulsion Augmentation

Specialised Services

  • D1 Non Destructive Testing

1. General/Introduction to human factors

  • 1.1. Need to address human factors
  • 1.2. Statistics
  • 1.3. Incidents
  • A4 Aircraft other than A1, A2 and A3
  • 1.5 Distribution List
  • 1.6 Accountable Manager’s Statement

2. Safety Culture/Organisational factors

3. Human Error

  • 3.1. Error models and theories
  • 3.2. Types of errors in maintenance tasks
  • 3.3. Violations
  • 3.4. Implications of errors
  • 3.5. Avoiding and managing errors
  • 3.6. Human reliability

4. Human performance & limitations

  • 4.1. Vision
  • 4.2. Hearing
  • 4.3. Information-processing
  • 4.4. Attention and perception
  • 4.5. Situational awareness
  • 4.6. Memory
  • 4.7. Claustrophobia and physical access
  • 4.8. Motivation
  • 4.9. Fitness/Health
  • 4.10. Stress
  • 4.11. Workload management
  • 4.12. Fatigue
  • 4.13. Alcohol, medication, drugs
  • 4.14. Physical work
  • 4.15. Repetitive tasks/complacency

5. Environment

  • 5.1. Peer pressure
  • 5.2. Stressors
  • 5.3. Time pressure and deadlines
  • 5.4. Workload
  • 5.5. Shift Work
  • 5.6. Noise and fumes
  • 5.7. Illumination
  • 5.8. Climate and temperature
  • 5.9. Motion and vibration
  • 5.10. Complex systems
  • 5.11. Hazards in the workplace
  • 5.12. Lack of manpower
  • 5.13. Distractions and interruptions

6. Procedures, information, tools and practices

  • 6.1. Visual Inspection
  • 6.2. Work logging and recording
  • 6.3. Procedure - practice/mismatch/norms
  • 6.4. Technical documentation - access and quality
  • 6.5. Critical maintenance tasks and error-capturing methods (independent inspection, reinspection, etc.)

7. Communication

  • 7.1. Shift/Task handover
  • 7.2. Dissemination of information
  • 7.3. Cultural differences

8. Teamwork

  • 8.1. Responsibility
  • 8.2. Management, supervision and leadership
  • 8.3. Decision making

9. Professionalism and integrity

  • 9.1. Keeping up to date; currency
  • 9.2. Error provoking behaviour
  • 9.3. Assertiveness

10. Organisation’s HF program

  • 10.1. Reporting errors
  • 10.2. Disciplinary policy
  • 10.3. Error investigation
  • 10.4. Action to address problems
  • 10.5. Feedback

Our EASA Part 145 A320 and B737NG sojt provides the practical hands on expertise in the aircraft’s electrical systems, airframe systems, powerplant and avionics systems that are required under EASA Part 145 approval. Completion of the SOJT enables B1/B2 licence holders to perform qualified maintenance checks on the aircraft type concerned with his specific A320 or B737NG type.


To give the student an in-depth hands on of the A320 or B737ng Airframe/ Power plant/Electrical Systems and Avionics Systems. At completion of the course the student will have sufficient knowledge to perform the duties of an B1/B2 certifying engineer and to apply for Appropriate company approvals.

After completing the A320 or B737NG B1/B2 maintenance course, the participant will be able to:

  • Recall the safety precautions.
  • Provide detailed descriptions of systems, structures and powerplant and their inter relationships.
  • Use and interpret the relevant documentation, including the SRM and the TSM.
  • Identify special tooling and test equipment.
  • Identify the locations of principal components.
  • Collate information from various sources for troubleshooting purposes.
  • Describe and perform servicing procedures.
  • Describe typical functional checks per AMM.
  • Describe the removal and installation procedures unique to the aircraft type.

Target Group:

The sojt is intended for EASA Part 66 Category B1/B2 maintenance engineering/technicians.

The sojt is intended for EASA Part 147 approved A320 series or B737NG theoretical and practical element courses completed Category B1/B2 maintenance engineering/technicians.


In compliance with EASA and other national authorities, we will gladly provide you with individual sojt training solutions. Discuss your requirements with us.


As determined by Company requirements but ideally will not be less than the holding of a EASA Part 66 B1 and/or B2 Aircraft Maintenance License. Participants must have the expertise and experience to meet the knowledge and skill levels required for the corresponding EASA licences. Knowledge of the relevant manuals such as the maintenance manual, the systems schematics manual, the wiring manual and the illustrated parts catalogue, as well as of the requisite tooling and equipment will also be required.

As determined by Company requirements but Candidate should get permission from EASA member licence authority before starting our SOJT programme.

Assessment And Approvals:

To ensure that the key course goals are achieved, every participant will be required to undergo assessments


  • A320 or B737NG SOJT: 40 days


  • İstanbul Atatürk Airport
  • İstanbul Sabiha Gökçen Airport

Engine Types:

  • A320 V2500
  • A320 CFM56
  • B737NG CFM56


  • Address: Sefaköy Halkalı Caddesi 1. Özbey Sokak No:3 Küçükçekmece-İSTANBUL

  • Pbx: +90 212 541 9466
  • Email: mail@sinerjiaviation.com

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