Advanced Composites Structural Repair (Stage III)

All  EFC courses comply SAE-CACRC, AIR 4938 and FAA and EASA standards.

In this course, Advanced Composites  Repair for aviation maintenance is all about working with advanced composites performing structural repairs and is our  Hands-On TOP  ‘level Stage III’, course as a follow-up for our TECH 010, (Stage II)  
This course is meant for personnel of technical departments of aviation maintenance who want to acquire the knowledge and skills taught in this upper level of Aviation and Aerospace composite repair.


Day(-s): 5 / Tech code: TECH-020


  • EFC TECH-001-(Stage I): Basic of Composite fabrication & Repair (Stage I)
  • EFC TECH 010-(Stage II): Intermediate of composite repair course  (Stage II)
  • Or equivalent level. Please do contact us if you want to access your equivalent level
  • Participants must be able to speak, understand and  read Technical English

Personnel of technical departments in aircraft maintenance or aerospace composites who want to become a Composite (Repair) technician who has a full understanding of, in-depth skills in Advanced Composite Repair, damage assessment and will be able to repair single and double curved damages following the OEM Structural Repair Manuals.

Minimum required 2 and maximum 8 per course*.

* Courses will be confirmed as running by EFC as soon as sufficient applications are received!

At the end of this course the participants:

  • Must be able to work as a team but also independently with minimum supervision
  • Must be attentive to details
  • Will work according to Safety regulations and can recognize hazardous materials & situations
  • Can read and understand OEM Ply-Lay-Up drawings
  • Will have the utmost in-depth understanding of vacuum bag techniques
  • Will have advanced knowledge of glass and carbon fiber materials and their properties
  • Can assess several types of damage by photography & record keeping
  • Can perform structural repairs on composite parts and repair several damage types according to the OEM manuals
  • Has the excellent practical hands-on experience in taper sanding with various taper ratios and variations in overlaps as required by the OEM
  • Can recognize, cut, sand and remove different honeycomb core materials
  • Knows how to use and program, monitor different Heat systems for curing
  • Knows how to fabricate one-of composite repair tool for repair assist
  • Can use drill guide, pre-drill and drill holes in edge bands of composite panels with drill fixtures and bushings
  • Can build a Quick repair support doubler and a part using Heat systems
  • Must be able to understand the criteria required in AIR 4838 (Latest revision)

  • Health & Safety
  • O.E.M. Comparison of manuals and other necessary documents
  • O.E.M. Advanced Ply Lay-Up/blueprint reading and interpretation
  • O.E.M. Additional Repair manual Damage assessment and record keeping documentation and photography
  • Composite awareness & damage incident reporting
  • Composite materials such as fiberglass and Carbon fiber Materials & processes
  • Surface prep & different repair type assessments and composite faster removal
  • Composite fastener hole drilling in fiberglass  and carbon fiber panels
  • Use of Hot-Bonding equipment, and Pro’s and Con’s of varying heating devises
  • Application of Quick Repair Tooling
  • Vacuum support technique on repair area single side repairs
  • Safety

(Level 3)

Participants will be daily intensively, individually monitored and evaluated by the instructor while repairing their individual parts!

Participants will fill in their personal logbook daily which is signed of by the instructor(s)

The participant will be able to:

  • perform Damage assessment by inspection and photography and have to keep a record
  • prepare a Quick support Tool, cure it at a low temp and apply a release agent to it
  • perform vacuum leak checks on every repair, keep a record of it
  • make use of different types of heating equipment
  • scarfing carbon fiber panels with a 1/2" and 1/4" Steps 
  • apply the ‘Felt part support technique’ for repair
  • prepare surface and repair steps and determination of working order steps
  • layup the pre-preg carbon fiber fabric in the correct Warp clock directions
  • Apply vacuum materials and heat blankets or other heat sources
  • prepare a support doubler (Tool) on a damaged carbon part
  • make a repair doubler next to the damaged area on an existing  part
  • attach the tool and fasteners on an existing panel and cure
  • perform a post-repair inspection on all repair and keep a record
  • program & monitor Hot bonding equipment, change programs and parameters during a high temp. cures.

  • Multiple choice questions from each of the teachings Level 1-2 and 3
  • Successful completion is 75% correct answers
  • The examination will be closed book and  can be conducted by a Part 147 approved Examiner
    upon request
  • The practical mark will be the average of all marks gained from the practical exercises
  • All grades will be recorded in the participant individual training records and kept on record at EFC for unlimited time (compliant with Reference EASA Commission Regulation (EU) No 1321/2014) and the GDPR rules
  • A certificate of accomplishment is handed out to each participant
  • Assessment activities are built into our courses, to give feedback on the achievement and personal potential and kept a record in their personal logbook.
  • The final outcome of the participant's Examination, assessment document and practical logbook per student will be digitally sent to your company responsible manager or HR department
  • We also comply with the European  GDPR rules as effective on May 25th, 2018 concerning storage of private information of participants who attended our courses…

This course can also be held at our facility in Leipzig Germany at the facilities of our partner HEICO. If you have a need for this, please contact our purchasing manager Rolf Hovener via his page.

For your company to benefit, this course can be held ‘On-Site’ at your facility under certain conditions.
Click on this link to the Onsite information webpage!

Courses as noted on our course schedule page can be run on request to meet your required start and end date.

All listed course prices are Excl VAT. (Dutch VAT is 21%). EFC complies with Dutch tax laws. On request, companies can be sent an invoice instead of paying direct On-line with PayPal, IDEAL or credit card.

Payment is securely arranged via Mollie.nl . More information can be found on the website of Mollie.

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There are no dates planned yet, if you are interested in this course, please contact us?