Airworthiness Manual Advisory (AMA) No. 549.5: Appendix A

Appendix A

Information Note:

The purpose of the Checklist is to record the amount of fabrication and assembly accomplished by the kit manufacturer, and the fabrication and assembly necessary for the builder to complete the aircraft.

The numbers derived from the "manufacturer" and "builder" columns on the checklist indicate the percentage of the aircraft fabricated and assembled by the manufacturer and the builder.  To meet the requirements of Chapter 549 the sum total in the builder's column must be greater than in the manufacturer's.

It is not necessary that a major portion of the individual parts be fabricated by the builder.  If there is some work; i.e., trimming, measuring, cutting, drilling, gluing, layup, etc., required to prepare the individual part for installation/assembly into the aircraft, and if this work is performed on a representative number of parts listed under each applicable section of the aircraft, the kit would be considered eligible, as long as fabrication and assembly make up the "major portion".

As used in this AMA: 

"fabricate" means to make or construct parts or assemblies from raw materials or other parts.  This involves operations such as measuring, cutting, drilling, bending, welding, riveting, gluing, bonding, etc.  It also involves operations such as soldering, crimping, swaging, "covering" and painting.

"assemble" means to fasten parts or assemblies together, using screws, bolts, nuts, or other mechanical fasteners.

Instruction for Completing Checklist

  1. Enter the kit manufacturer's company name and address.
  2. Enter model of kit by name and/or number.
  3. List the latest date or revision date of kit parts list.
  4. Enter type of aircraft (land, sea, fixed-wing, rotorcraft    etc.).
  5. Enter the date of the evaluation.
  6. Review each operation for its applicability to the kit under  evaluation.
  7. Check the respective block under "accomplished by" (manufacturer, or builder).
  8. Enter any operations not on list in blank spaces.
  9. If the operation is not applicable to the kit construction enter "N/A" in the respective blocks.
  10. Operations that are accomplished by other manufacturers or suppliers are to be checked in the kit manufacturer block.
  11. Only special tools and fixtures, (i.e., jigs, templates, etc.) fabricated by the builder will be give credit.  (No credit for hand tools).
  12. When the evaluation is complete the total check marks are to be entered in the respective blocks on page 3 of the checklist.
  13. Sign and date the checklist.

Instructions For Determining Totals To Complete An Amateur-Built Aircraft Kit, using the Checklist at Annex A.

  1. For each item on the checklist (Annex A) that is accomplished by the manufacturer, a checkmark is entered under the "KIT MANUFACTURED" column.  This should not include jigs, special fixtures, etc.
  2. For each item that is fabricated or installed by the amateur-builder, a checkmark is entered under the "AMATEUR BUILDER" column.  This can include jigs and fixtures that would be necessary for the amateur-builder to make in the fabrication of the aircraft or components thereof.
  3. When this is completed for the aircraft the two columns are totalled and the percentage of checkmarks in the "AMATEUR BUILDER" column determined.


Company Name;

Parts List Date

Aircraft Model
Type of Aircraft


Accomplished by


Kit Mfr



 1. Fabricate Special Tools or Fixtures



 2. Fabricate Longitudinal Members, Cores or Shells



 3. Fabricate Bulkheads or Cross Members



 4. Assemble Fuselage Basic Structure



 5. Fabricate Brackets and Fittings



 6. Install Brackets and Fittings



 7. Fabricate Flight Control System Components



 8. Install Flight Control System Components



 9. Fabricate Cables, Wires and Lines



10. Install Cables, Wires and Lines



11. Fabricate Fuselage Covering or Skin



12. Install Fuselage Covering or Skin



13. Fabricate Windshield/Windows/Canopy



14. Install Windshield/Windows/Canopy




 1. Fabricate Special Tools or Fixtures



 2. Fabricate Wing Spars



 3. Fabricate Wing Ribs or Cores



 4. Fabricate Wing Leading and Trailing Edge



 5. Fabricate Drag/Anti-Drag Truss Members



 6. Fabricate Wing Brackets and Fittings



 7. Fabricate Wing Tips



 8. Assemble Basic Wing Structures



 9. Install Wing Leading/Trailing Edge and Tips



10. Install Wing Ailerons



11. Install Wing Drag/Anti-Drag Truss



12. Fabricate Cables, Wires and Lines



13. Install Cables, Wires and Lines



14. Fabricate Flight Control System Components



15. Install Flight Control System Components



16. Fabricate Wing Covering or Skin



17. Install Wing Covering or Skin



18. Fabricate Wing Struts/Wires



19. Install and Rig Wings and Struts



20. Fabricate Wing Flaps and Spoilers



21. Install Wing Flaps and Spoilers




 1. Fabricate Aileron Spars



 2. Fabricate Aileron Ribs or Cores



 3. Fabricate Aileron Leading and Trailing Edge



 4. Fabricate Aileron Brackets and Fittings



 5. Assemble Basic Aileron Structures



 6. Install Aileron Leading/Trailing Edge and Tips



 7. Install Aileron Fittings



 8. Fabricate Aileron Covering or Skin



 9. Install Aileron Covering or Skin



10. Install and Rig Wings and Struts




 1. Fabricate Special Tools or Fixtures



 2. Fabricate Spars



 3. Fabricate Ribs or Cores



 4. Fabricate Leading and Trailing Edges



 5. Fabricate Tips



 6. Fabricate Brackets and Fittings



 7. Assemble Empennage Structure



 8. Install Leading/Trailing Edges and Tips



 9. Install Fittings



10. Fabricate Cables, Wires and Lines



11. Install Cables, Wires and Lines



12. Fabricate Empennage Covering or Skin



13. Install Empennage Covering or Skin



14. Install and Rig Empennage




 1. Fabricate Canard



 2. Assemble Canard Structures



 3. Install and Rig Canard




 1. Fabricate Special Tools or Fixtures



 2. Fabricate Struts



 3. Fabricate Brakes System



 4. Fabricate Retraction System



 5. Fabricate Cables, Wires and Lines



 6. Assemble Wheels, Brakes, Tires, Landing Gear



 7. Install Landing Gear System Components Above




 1. Fabricate Special Tools or Fixtures



 2. Fabricate Engine Mount



 3. Fabricate Engine Cooling System/Baffles



 4. Fabricate Induction System



 5. Fabricate Exhaust System



 6. Fabricate Engine Controls



 7. Fabricate Brackets and Fittings



 8. Fabricate Cables, Wires and Lines



 9. Assemble Engine



10. Install Engine and Items Listed Above



11. Fabricate Engine Cowling



12. Install Engine Cowling



13. Fabricate Propeller



14. Install Propeller



15. Fabricate Fuel Tank



16. Install Fuel Tank



17. Fabricate Fuel System Components



18. Install Fuel System Components




 1. Fabricate Special Static and Dynamic Main Rotor Rigging Tools



 2. Fabricate/Assemble Main Rotor Drive Train



 3. Install Main Rotor Drive Train Assembly



 4. Fabricate/Assemble Main Rotor Shaft and Hub Assembly



 5. Install Main Rotor Shaft and Hub Assembly



 6. Align Main Rotor Shaft Drive Train, Shaft and Hub Assembly



 7. Fabricate Main Rotor Rotating Controls



 8. Install Main Rotor Rotating Controls



 9. Fabricate Main Rotor Non-Rotating Controls



10. Rig Main Rotor Rotating and Non-Rotating Controls



11. Fabricate Main Rotor Blades



12. Install Main Rotor Blades on Rotor Hub



13. Statically Balance and Rig Main Rotor System



14. Dynamically Track and Balance Main Rotor System




 1. Fabricate Special Static Tail Rotor Rigging Tools



 2. Fabricate Vertical Trim Fin



 3. Install Vertical Trim Fin



 4. Fabricate Horizontal Trim Fin



 5. Install Horizontal Trim Fin



 6. Fabricate Tail Rotor Drive System



 7. Install Tail Rotor Drive System



 8. Fabricate Tail Cone or Frame



 9. Install Tail Cone or Frame



10. Rig Vertical and Horizontal Fins



11. Fabricate Tail Rotor Shaft and Hub Assembly



12. Install Tail Rotor Shaft and Hub Assembly



13. Fabricate Tail Rotor Rotating and Non-Rotating Controls



14. Rig Tail Rotor Rotating and Non-Rotating Controls



15. Fabricate/Assemble Tail Rotor Blades



16. Install Tail Rotor Blades



17. Statically Balance and Rig Tail Rotor System



18. Dynamically Track and Balance Tail Rotor System




 1. Fabricate Instrument Panel



 2. Install Instrument Panel and Instruments



 3. Fabricate Seats



 4. Install Seats



 5. Fabricate Electrical Wiring, Controls/Switches



 6. Install Electrical System Controls/Switches






Sample Letter To Applicantwhen Kit Is Determined To Be Eligible

Applicant's Name
Dear Sir:
Transport Canada Aviation has completed evaluation of the (Aircraft Model) kit.  We have determined that the kit, as evaluated at your facility on (date), and defined by parts list (date/revision) meets the intent of Chapter 549 (Section 549.5) of the Airworthiness Manual.  "The major portion of the aircraft (more than 50%) is fabricated from raw material and assembled by an individual or a group of individuals on a non-commercial, non-production basis for educational or recreational purposes".
This evaluation should not be construed to mean that the kit is "certified," "certificated", or "approved" and it is not appropriate to represent it as such.  It may be represented as eligible for construction as an amateur-built aircraft under the provisions of Chapter 549 of the Airworthiness Manual.
Copies of the kit parts list, identified by date and/or revision, shall be provided with kits supplied to customers.  This will assist the builders in identifying the configuration of the kits for the final approval of the completed aircraft.  Any changes to the configuration or contents of the kits and parts lists may affect the eligibility of the kits.