{"id":"F2007L04877","name":"Civil Aviation Order 104.0 (Certificates of approval - application, grant and conditions)","slug":"civil-aviation-order-104-0-certificates-of-approval-application-grant-and-conditions","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":71689,"registerId":"commonwealth-F2007L04877-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1A","sectionType":"section","heading":"Name of instrument","content":"1A Name of instrument\n\n1A.1This instrument is the Civil Aviation Order 104.0 (Certificates of approval — application, grant and conditions).\n\n","sortOrder":0},{"sectionNumber":"1","sectionType":"section","heading":"Applicability","content":"1 Applicability\n\n1.1This Order applies to persons seeking or holding a certificate of approval of the kind referred to in regulation 30 of the Civil Aviation Regulations 1988.\n\n","sortOrder":1},{"sectionNumber":"2","sectionType":"section","heading":"Definitions","content":"2 Definitions\n\n2.1In this Order:\n\n> ATA, followed by a number, is a code to indicate that the scope of an excluded system is the same as that described in the same code used in the publications of the Air Transport Association.\n\nauthority or type rating holder means a person who holds 1 or more of the following:\n\n(a) an airworthiness authority under paragraph 33B (1) (a) of CAR 1988 to carry out maintenance on a WHR;\n\n> Note The abbreviation WHR is used to denote a class of aircraft comprising Warbird aircraft, Historic aircraft and Replica aircraft and is defined in this section.\n\n(b) an airworthiness authority under paragraph 33B (1) (d) of CAR 1988 to conduct non-destructive testing (NDT) of aircraft and aircraft components;\n\n(c) an aircraft welding authority under subregulation 33D (1) of CAR 1988;\n\n(d) an authorisation under subregulation 42ZC (6) of CAR 1988 to carry out maintenance for paragraph 42ZC (4) (e) of CAR 1988;\n\n(e) a category B1 or B2 licence with a rating for a type rated aircraft type that is a WHR;\n\n> Note Type rated aircraft type is defined in Part 3 of the Dictionary in CASR 1998.\n\n(f) a category B1 or B2 licence under which the holder carries out Part 1 WHR maintenance in accordance with paragraph 8AA.5.\n\n> CAR 1988 means the Civil Aviation Regulations 1988.\n\n> CASR 1998 means the Civil Aviation Safety Regulations 1998.\n\n> category B1 licence holder has the same meaning as in subregulation 66.010 (1) of CASR 1998.\n\n> category B2 licence holder has the same meaning as in subregulation 66.010 (1) of CASR 1998.\n\n> certification authorisation means an authorisation mentioned in paragraph 8.2.\n\n> COA holder means a person who holds a certificate of approval under regulation 30 of CAR 1988 for maintenance of aircraft, aircraft components or aircraft materials.\n\n> E, followed by a number, is a CASA code used to identify the excluded system and is for reference only.\n\n> employed authority or type rating holder means a person who is an authority or type rating holder employed by a COA holder.\n\n> excluded system means an excluded system mentioned in Appendix 1.\n\n> excluded system employee means an employee of a COA holder who is a category B1 licence holder, or a category B2 licence holder, but whose licence does not permit maintenance on an excluded system mentioned in Appendix 1.\n\n> excluded type means a type of aircraft or aircraft engine mentioned in Table 2 of Appendix IX of the Part 66 MOS.\n\n> excluded type employee means an employee of a COA holder who is a category B1 licence holder, or a category B2 licence holder, but whose licence is not endorsed with a rating or part of a rating for maintenance on an aircraft or an aircraft engine mentioned in Table 2 of Appendix IX of the Part 66 MOS.\n\n> maintenance training organisation or MTO means a person who holds an approval under regulation 147.030 that is in force.\n\n> maintenance manual means the manual prepared for the carrying out of maintenance in accordance with regulation 39 of the Civil Aviation Regulations 1988.\n\n> Part 1 WHR maintenance means maintenance on a WHR mentioned in Part 1 of the table in Appendix 3 of this Order.\n\n> Part 66 MOS means the Part 66 Manual of Standards issued by CASA under regulation 66.015.\n\n> quality control manual for a COA holder means the manual, as approved in writing by CASA, for training and assessment in, and certification authorisation for, the maintenance of aircraft, including a WHR where relevant.\n\n> trained WHR employee means a WHR employee of a COA holder who:\n\n(a) has successfully completed training and assessment in accordance with subsection 8 of this Order; and\n\n(b) holds a current certification authorisation, under subsection 8 of this Order, from the COA holder authorising the employee to perform particular maintenance on a WHR mentioned in Part 1 of the table in Appendix 3.\n\n> unlisted turbine-powered WHR means a turbine-powered WHR that is:\n\n(a) not mentioned in Part 1 or 2 of the table in Appendix 3; or\n\n(b) deemed by paragraph 8.13 to be an unlisted turbine-powered WHR.\n\n> WHR means an aircraft that is:\n\n(a) either:\n\n(i) manufactured in accordance with the requirements of, and accepted for use by, an armed force; or\n\n> Note Such an aircraft is colloquially known as a warbird.\n\n(ii) an historic or replica aircraft that CASA or an authorised person is satisfied meets the airworthiness requirements for the issue of a standard certificate of airworthiness (except any requirements that are inappropriate for the special purpose for which the aircraft is to be used); and\n\n(b) issued with:\n\n(i) a special certificate of airworthiness for limited category aircraft under regulation 21.189 of CASR 1998; or\n\n(ii) an experimental certificate for aircraft under paragraph 21.191 (d) or (e) of CASR 1998.\n\n> Note The tables in Parts 1 and 2 of Appendix 3 refer to an aircraft in terms of its combined airframe and engine type as mentioned in the subcolumns of column 1 of the tables.\n\n> WHR employee means a person who is an employee of a COA holder and who is 1 of the following:\n\n(a) a category B1 licence holder in a subcategory that is applicable to the WHR on which he or she proposes to carry out maintenance under subsection 8 of CAO 104.0;\n\n(b) a category B2 licence holder.\n\n> wood and fabric employee means an employee of a COA holder who is a category B1 licence holder, or a category B2 licence holder, engaged in the maintenance of wooden construction aircraft or wooden aircraft components, or the maintenance, replacement and repair of aircraft fabric surfaces, but who is not the holder of an authorisation or rating issued to him or her that applies to that work.\n\n","sortOrder":2},{"sectionNumber":"3","sectionType":"section","heading":"Application","content":"3 Application\n\n3.1Application for the grant of a certificate of approval under regulation 30 of the Civil Aviation Regulations 1988 must be made on the appropriate form.\n\n3.2The application must be signed by the person seeking approval, by a member of a firm or, in respect of a registered company, by the Public Officer of the Company or under the seal of the Company.\n\n","sortOrder":3},{"sectionNumber":"4","sectionType":"section","heading":"Grant of certificate","content":"4 Grant of certificate\n\n4.1The holder of a certificate of approval is granted authority, in respect of the activities for which the certificate has been granted, to carry out maintenance under regulation 42ZC or 42ZD of the Civil Aviation Regulations 1988.\n\n","sortOrder":4},{"sectionNumber":"5","sectionType":"section","heading":"Excluded system employees – removal of exclusion from a type rating – conditions for COA training and assessment","content":"5 Excluded system employees – removal of exclusion from a type rating – conditions for COA training and assessment\n\n5.1A COA holder may issue a certification authorisation to an excluded system employee (the employee) for carrying out maintenance on an excluded system, on an aircraft for which the employee holds a type rating, mentioned in Appendix 1 in accordance with this subsection.\n\n5.2A certification authorisation may only be issued once for the employee, and only for a period of 6 months.\n\n5.3Before issuing the certification authorisation, the COA holder must provide, and the employee must successfully complete, training and assessment in the excluded system for the aircraft type.\n\n5.4The training and assessment mentioned in paragraph 5.3 must be in accordance with the COA holder’s quality control manual, as approved in writing by CASA for training and assessment in the excluded system.\n\n5.5Before issuing a certification authorisation to an excluded system employee, the COA holder must be, in respect of maintenance on the excluded system to be performed by the employee:\n\n(a) a CASA delegate for subregulation 42ZC (6) of CAR 1988, who may authorise a person for the purposes of paragraph 42ZC (3) (d) or 42ZC (4) (e) (as the case requires); or\n\n(b) an authorised person for subregulation 42ZC (7), who may authorise a person for the purposes of paragraph 42ZC (3) (d).\n\n5.6If it appears to a COA holder that an employee has, after successfully completing the training and assessment in the excluded system, in accordance with paragraphs 5.3 and 5.4, successfully carried out maintenance under a certification authorisation issued under paragraph 5.1, the COA holder may, after at least 5 months of the authorisation period have elapsed, provide CASA and the employee with a provisional notice in the approved form of satisfactory completion of training and assessment.\n\n5.7If, not earlier than 3 days before the authorisation period lapses, the COA holder wishes to confirm that the employee has satisfactorily completed their training and assessment, the COA holder must provide CASA and the employee with a confirmation notice in the approved form of satisfactory completion of training.\n\n5.8A notice referred to in clause 5.7 may be provided by electronic transmission to an address provided by CASA for that purpose.\n\n5.9An authorisation period of 6 months cannot be extended.\n\n5.10The purpose of paragraphs 5.6 to 5.8 (inclusive) is to allow CASA to update an employee’s licence to allow him or her to commence carrying out maintenance as soon as practicable after the completion of the 6 month duration of the authorisation issued under paragraph 5.1. Issue of a provisional notice does not mean that a person to whom it is issued is entitled to a confirmation notice of successful completion.\n\n> Note 1 Receipt of the notice will enable CASA to consider removal of the relevant exclusion from the employee’s rating.\n\n> Note 2 Section 5 does not permit removal by an employer of excluded systems from an employee’s licence category, see the Acceptable Means of Compliance (AMC) and Guidance Material (GM) for Part 66 of CASR 1998.\n\n","sortOrder":5},{"sectionNumber":"6","sectionType":"section","heading":"Excluded type employees — conditions for COA training and assessment","content":"6 Excluded type employees — conditions for COA training and assessment\n\n6.1A COA holder may issue a certification authorisation to an excluded type employee (the employee) for carrying out maintenance on an excluded type of aircraft or aircraft engine mentioned in Table 2 of Appendix IX of the Part 66 MOS, in accordance with this subsection.\n\n6.2However, a COA holder must not issue a certification authorisation mentioned in paragraph 6.1 for any aircraft engine mentioned in Table 2 of Appendix IX of the Part 66 MOS whose reference is annotated with the words “MTO only”.\n\n> Note Annotated powerplants (engines) require CASA approved type training which may only be delivered by a CASR Part 147 MTO.\n\n6.3A certification authorisation may only be issued once for the employee, and only for a period of 6 months.\n\n6.4Before issuing the certification authorisation, the COA holder must provide, and the employee must successfully complete, training and assessment in the excluded type.\n\n6.5The training and assessment mentioned in paragraph 6.3 must be in accordance with the COA holder’s quality control manual, as approved in writing by CASA for training and assessment in the excluded type.\n\n6.6Before issuing a certification authorisation to an excluded type employee, the COA holder must be, in respect of maintenance on the excluded type to be performed by the employee:\n\n(a) a CASA delegate for subregulation 42ZC (6) of CAR 1988, who may authorise a person for the purposes of paragraph 42ZC (3) (d) or 42ZC (4) (e) (as the case requires); or\n\n(b) an authorised person for subregulation 42ZC (7), who may authorise a person for the purposes of paragraph 42ZC (3) (d).\n\n6.7If it appears to a COA holder that an employee has, after successfully completing the training and assessment in the excluded system, in accordance with paragraphs 6.1, 6.4 and 6.5, successfully carried out maintenance on the excluded type, the COA holder may, after at least 5 months of the authorisation period have elapsed, provide CASA and the employee with a provisional notice in the approved form of satisfactory completion of training and assessment.\n\n6.8If, not earlier than 3 days before the authorisation period lapses, the COA holder wishes to confirm that the employee has satisfactorily completed their training and assessment, the COA holder must provide CASA and the employee with a confirmation notice in the approved form of satisfactory completion of training.\n\n6.9A notice referred to in paragraph 6.8 may be provided by electronic transmission to an address referred to in the approved form.\n\n6.10An authorisation period of 6 months cannot be extended.\n\n6.11The purpose of paragraphs 6.7 to 6.9 (inclusive) is to allow CASA to update an employee’s licence to allow him or her to continue to have a permission to carry out maintenance, without delay after the completion of the authorisation period. Issue of a provisional notice does not mean that a person to whom it is issued is entitled to a confirmation notice of successful completion.\n\n> Note Receipt of the notice will enable CASA to consider removal of the relevant exclusion from the employee’s rating or issuing a relevant rating.\n\n","sortOrder":6},{"sectionNumber":"7","sectionType":"section","heading":"Excluded type employees — manufacturer’s training and assessment","content":"7 Excluded type employees — manufacturer’s training and assessment\n\n7.1A COA holder may issue a certification authorisation to an excluded type employee (the employee) for carrying out maintenance on an excluded type of aircraft or aircraft engine mentioned in Table 2 of Appendix IX of the Part 66 MOS in accordance with this subsection.\n\n7.2However, a COA holder must not issue a certification authorisation mentioned in Table 2 of Appendix IX of the Part 66 MOS whose reference is annotated with the words “MTO only”.\n\n> Note Annotated powerplants (engines) require CASA approved type training which may only be delivered by a CASR Part 147 MTO.\n\n7.3A certification authorisation for the employee may only be issued once, and only for a period of 6 months.\n\n7.4Before issuing the certification authorisation, the COA holder must be satisfied that the employee has been successfully trained and assessed by the manufacturer of the aircraft or the aircraft engine to perform maintenance on the aircraft or the aircraft engine.\n\n7.5The manufacturer’s training and assessment mentioned in paragraph 7.4, and any additional or supplemental training and assessment by the COA holder, must be in accordance with the COA holder’s quality control manual as approved in writing by CASA for training and assessment under this subsection.\n\n7.6Before issuing a certification authorisation to an excluded type employee, the COA holder must be, in respect of maintenance on the excluded type to be performed by the employee:\n\n(a) a CASA delegate for subregulation 42ZC (6) of CAR 1988, who may authorise a person for the purposes of paragraph 42ZC (3) (d) or 42ZC (4) (e) (as the case requires); or\n\n(b) an authorised person for subregulation 42ZC (7), who may authorise a person for the purposes of paragraph 42ZC (3) (d).\n\n7.7If it appears to a COA holder that an employee has, after successfully completing the training and assessment in the excluded system, in accordance with paragraphs 7.1, 7.4 and 7.5, successfully carried out maintenance on the excluded type, the COA holder may, after at least 5 months of the authorisation period have elapsed, provide CASA and the employee with a provisional notice in the approved form of satisfactory completion of training and assessment.\n\n7.8If, not earlier than 3 days before the authorisation period lapses, the COA holder wishes to confirm that the employee has satisfactorily completed their training and assessment, the COA holder must provide CASA and the employee with a confirmation notice in the approved form of satisfactory completion of training.\n\n7.9A notice referred to in paragraph 7.8 may be provided by electronic transmission to an address provided by CASA for that purpose.\n\n7.10An authorisation period of 6 months cannot be extended.\n\n7.11The purpose of paragraphs 7.7 to 7.9 (inclusive) is to allow CASA to update an employee’s licence to allow him or her to commence carrying out maintenance without delay after the completion of the authorisation period. Issue of a provisional notice does not mean that a person to whom it is issued is entitled to a confirmation notice of successful completion.\n\n8AA When subsection 8 takes effect\n\n8AA.1 Subject to this subsection, subsection 8 takes effect for a COA holder on and from 1 July 2015.\n\n8AA.2If a person becomes a COA holder at any time from 1 October 2013 to 30 June 2015, subsection 8 takes effect for the person as soon as the person becomes a COA holder.\n\n8AA.3If, immediately before 1 October 2013, a person was a COA holder, subsection 8 takes effect:\n\n(a) from 1 July 2015; or\n\n(b) on and from an earlier date agreed to in writing by CASA — but only if, on written application by the COA holder under this subparagraph, CASA:\n\n(i) appoints the holder to be a CASA delegate of the kind referred to in paragraph 8.6; and\n\n(ii) approves the holder’s quality control manual in relation to the training and assessment, and reassessment of competency, referred to in paragraph 8.6.\n\n8AA.4 The applicable provisions of subsection 8 take effect for each of a COA holder’s employed authority or type rating holders and WHR employees immediately after subsection 8 takes effect for the COA holder.\n\n8AA.5In spite of paragraph 8AA.4, a category B1 or B2 licence holder who carried out Part 1 WHR maintenance on an aircraft not more than 2 years before subsection 8 takes effect may continue to carry out such maintenance.\n\n","sortOrder":7},{"sectionNumber":"8","sectionType":"section","heading":"WHR — conditions for COA training and assessment","content":"8 WHR — conditions for COA training and assessment\n\n> Note See also instrument CASA 03/15 containing directions and conditions variously addressed to COA holders and their employees, and to independent LAMEs (as defined in the direction).\n\n8.1A COA holder:\n\n(a) must not permit a person to carry out Part 1 WHR maintenance unless the COA holder has issued the person with a certification authorisation for carrying out the maintenance; and\n\n(b) must ensure that an employee of the COA holder does not carry out Part 1 WHR maintenance except in accordance with a certification authorisation issued under this subsection.\n\n8.2 A COA holder may issue a certification authorisation to an employed authority or type rating holder, or a WHR employee, in accordance with this subsection.\n\n8.3 Before issuing a certification authorisation to a WHR employee, the COA holder must provide, and the WHR employee must successfully complete, training and assessment in Part 1 WHR maintenance in accordance with the COA holder’s quality control manual.\n\n> Note: > Note\n> \n> This training and assessment is not required for an employed authority or type rating holder.\n\n8.4 A certification authorisation may only be issued for a period of not more than 2 years.\n\n8.5 A certification authorisation may be reissued for further periods of not more than 2 years each:\n\n(a) to an employed authority or type rating holder; and\n\n(b) to a trained WHR employee — but only if, before the reissue, he or she successfully completes the COA holder’s reassessment of competency for Part 1 WHR maintenance as provided for in the holder’s quality control manual.\n\n8.6 Before issuing a certification authorisation to a trained WHR employee or reissuing a certification authorisation under paragraph 8.5, the COA holder must, in respect of the Part 1 WHR maintenance, be a CASA delegate for subregulation 42ZC (6) of CAR 1988 who may authorise a person for the purposes of paragraph 42ZC (4) (e).\n\n8.7 The COA holder must give a notice of completion of training and assessment, or reassessment, in the approved form, to the WHR employee as soon as the employee has successfully completed the training and assessment, or reassessment, in Part 1 WHR maintenance, and been issued, or reissued, with a certification authorisation.\n\n> Note With training, assessment and certification authorisation, a WHR employee becomes a trained WHR employee. With reassessment of competency and certification authorisation, a trained WHR employee is permitted to continue as a trained WHR employee. Part 1 WHR maintenance may only be carried out by an employed authority or type rating holder or by a trained WHR employee to whom the COA holder has issued a certification authorisation.\n\n8.8 The COA holder must retain in safe custody, for at least 2 years after the WHR employee has left his or her employment with the holder, a perfectly legible copy of any notice of completion mentioned in paragraph 8.7.\n\n8.9For this subsection, a certification authorisation for Part 1 WHR maintenance may only be issued:\n\n(a) to an employed authority or type rating holder; and\n\n(b) to a trained WHR employee — for an aircraft mentioned in an item in column 1 of Part 1 of the table in Appendix 3 but only if the person holds a licence in the relevant category for the maintenance mentioned in the corresponding item in column 2 of Part 1 of the table.\n\n8.10 For this subsection, a certification authorisation issued for an aircraft mentioned in an item in column 1 of Part 1 of the table in Appendix 3 may be identified by reference to the suggested identification (if any) mentioned for the item in column 3 of Part 1 of the table.\n\n8.11For this subsection, a COA holder may carry out maintenance on an aircraft mentioned in an item in column 1 of Part 2 of the table in Appendix 3 only if the maintenance is carried out by:\n\n(a) an employed authority or type rating holder (whether or not the person holds a certification authorisation); or\n\n(b) a WHR employee (whether or not the person is a trained WHR employee, and whether or not the person holds a certification authorisation) — but only if the person holds a licence in the category mentioned in the corresponding item in column 2 of Part 2 of the table.\n\n8.12For this subsection, a COA holder may carry out maintenance on an unlisted turbine‑powered WHR only if:\n\n(a) the maintenance is carried out as if the unlisted turbine-powered WHR were a WHR listed in Part 1 of the table in Appendix 3; and\n\n(b) each of the requirements under this subsection for Part 1 WHR maintenance (including for qualifications, training, assessment, reassessment, certificate authorisations, delegations, notices and records) applied to maintenance of the unlisted turbine-powered WHR.\n\n8.13For paragraph 8.12, a WHR with an airframe mentioned in column 1 of Part 2 of the table in Appendix 3 whose piston engine type has been modified to be a turbine engine type, is deemed to be an unlisted turbine-powered WHR.\n\n","sortOrder":8},{"sectionNumber":"9","sectionType":"section","heading":"Provisions not affected","content":"9 Provisions not affected\n\n9.1Subsection 8 does not affect the operation of regulation 42G of CAR 1988.\n\n> Note Regulation 42G of CAR 1988 concerns who may be qualified as an “appropriate person” to conduct the independent inspection required when an aircraft flight control system is assembled, adjusted, repaired, modified or replaced in the course of maintenance on the aircraft.\n\n9.2Subsection 8 does not affect the operation of paragraph 42ZC (4) (d) of CAR 1988.\n\n> Note 1 Paragraph 42ZC (4) (d) of CAR 1988 concerns maintenance, specified in Schedule 8 of CAR 1988, that may be carried out by a pilot of a Class B aircraft. A WHR is a class B aircraft.\n\n> Note 2 Under instrument CASA 155/11, for paragraph 42ZC (4) (e) of CAR 1988, each subcategory B1 licence holder, or category B2 licence holder, is authorised to carry out the maintenance mentioned in Schedule 8 of CAR 1988 on any class B aircraft, including a WHR.\n\n","sortOrder":9},{"sectionNumber":"10","sectionType":"section","heading":"Wood and fabric — removal of exclusion from a licence category","content":"10 Wood and fabric — removal of exclusion from a licence category\n\n10.1A COA holder may authorise a wood and fabric employee to carry out maintenance:\n\n(a) of the wooden portion of a wooden construction aircraft or wooden aircraft components; or\n\n(b) that is the replacement, or repair of, aircraft fabric surfaces.\n\n10.2A maintenance authorisation may only be issued once for the employee, and only for a period of 6 months.\n\n10.3Before issuing the maintenance authorisation, the COA holder must provide, and the employee must successfully complete, training and assessment in the maintenance of wooden aircraft and wooden aircraft components, or maintenance on, or the replacement and repair, of aircraft fabric surfaces.\n\n10.4The training and assessment mentioned in paragraph 10.3 must be in accordance with the COA holder’s Quality Control Manual as approved in writing by CASA for training and assessment in one of the subjects mentioned in paragraph 10.3 and of a standard equivalent to whichever of the following Australian Qualifications Framework units is applicable:\n\n(a) MEA 357A (inspect, test and repair fabric surfaces);\n\n(b) MEA 358A (re-cover aircraft fabric surfaces);\n\n(c) MEA 359A (inspect and repair aircraft wooden structures).\n\n10.5Before issuing a maintenance authorisation of the kind referred to in paragraph 10.1, the COA holder must be, in respect of the maintenance to be performed by the employee:\n\n(a) a CASA delegate for subregulation 42ZC (6) of CAR 1988 who may authorise a person for paragraph 42ZC (3) (d) or (4) (e) of CAR 1988 (as the case requires);\n\n(b) an authorised person for subregulation 42ZC (7) of CAR 1988, who may authorise a person for paragraph 42ZC (3) (d) of CAR 1988.\n\n10.6If it appears to a COA holder that an employee has, after successfully completing training and assessment in accordance with paragraph 10.3, successfully carried out maintenance under an authorisation issued under paragraph 10.1, the COA holder may, after at least 5 months of the authorisation period have elapsed, provide CASA and the employee with a provisional notice in the approved form of satisfactory completion of training and assessment.\n\n10.7If, not earlier than 3 days before the authorisation period lapses, the COA holder wishes to confirm that an employee has satisfactorily completed their training and assessment, the COA holder must provide CASA and the employee with a confirmation notice in the approved form of successful completion of training.\n\n10.8A notice referred to in clause 10.6 may be provided by electronic transmission to an address provided by CASA for that purpose.\n\n10.9An authorisation period of 6 months cannot be extended.\n\n10.10The purpose of paragraphs 10.1-10.8 is to allow CASA to update an employee’s licence to allow him or her to commence carrying on maintenance, without delay, after the completion of the authorisation period. Issue of a provisional notice does not mean that a person to whom it is issued is entitled to a confirmation notice of successful completion.\n\nAppendix 1 Excluded systems\n\n> Note Excluded systems are sometimes described with the prefix “Excluding”.\n\nE6 Avionic LRUs\n\nE11 Audio CVR systems\n\nE12 Propellers\n\nE13 Hydraulics — ATA29\n\nE14 Vapour cycle air-conditioning aspects of ATA21\n\nE15 Air-conditioning aspects of ATA21\n\nE16 Pressurisation aspects of ATA21\n\nE18 ADF systems\n\nE19 VOR systems\n\nE20 ILS systems\n\nE21 Weather radar systems\n\nE22 ATC transponder systems\n\nE23 Radio altimeter systems\n\nE24 DME systems\n\nE25 Doppler systems\n\nE26 Satellite navigation systems\n\nE27 Autopilots\n\nE28 Multi-axis autopilots\n\nE29 Remote indicating compass systems\n\nE30 Inertial navigation and reference systems\n\nE31 Pressurisation systems\n\nE32 Electrical systems in aircraft equipped with multi-generator powered systems\n\nE33 Supercharging\n\nE34 Digital systems\n\nE35 Pressurised structures\n\nE36 Carburettor systems\n\nE37 Fuel injection systems\n\nE38 Turbo supercharging systems\n\nE39 Airframe ice protection systems\n\nE40 Airframe fire protection systems\n\nE41 Oxygen systems\n\nE42 Landing gear retraction systems\n\nE43 Fabric other than flight controls\n\nE44 Wiring repairs\n\nAppendix 3 — WHR for the application of subsection 8\n\n","sortOrder":10},{"sectionNumber":"Part 1","sectionType":"part","heading":"for an employed authority or type rating holder and a trained WHR employee — certification required","content":"Part 1 — for an employed authority or type rating holder and a trained WHR employee — certification required\n\n> Note 1 Only an employed authority or type rating holder or a trained WHR employee, issued with a certification authorisation, may carry out maintenance on these aircraft.\n\n> Note 2 The “Suggested identification for a certification authorisation” (if any) mentioned in column 3 of the tables in Appendix 3 refers to a suggested means of identifying certification authorisations for Civil Aviation Order 104.0. It is included here for information only.\n\n

Aircraft

Licence Categories

Suggested identification for a certification authorisation

Airframe

Engine type

Aero Vodochody L 29 Delphin

Motorlet M‑701C 500

B1.1; B2

L29

Aero Vodochody L 39 Albatross

Ivchenko AI-25TL

B1.1; B2

L 39

BAC Jet Provost

A-S Viper

B1.1; B2

Jet Provost

BAC Strikemaster

Rolls-Royce Viper Mk.535 turbojet

B1.1; B2

Strikemaster

Bell Cobra

Lycoming T53-L-13

B1.3; B2

AH-1G

Bell Iroquois Huey

Lycoming T53-L-11

B1.3; B2

UH series

CAC Sabre

RR Avon

B1.1; B2

Sabre

Cessna Dragonfly

General Electric J85-GE-17A

B1.1; B2

Dragonfly

DH 115 Vampire

DH Goblin

B1.1; B2

DH115

English Electric/Handley Page Canberra

RR Avon

B1.1; B2

Canberra

Folland Gnat

BS Orpheus

B1.1; B2

Gnat

Fouga CM 170 Magister

Turbomeca Marbore

B1.1; B2

CM 170

Gloster Meteor

RR Derwent

B1.1; B2

Meteor

Hawker Hunter

RR Avon

B1.1; B2

Hunter

Lockheed C121 Constellation

Wright R‑3350‑DA3

B1.2; B2

Constellation

Lockheed P2v Neptune

Wright R-3350 and Westinghouse J 34

B1.1; B1.2; B2

Neptune

Mikoyan Mig 15

Klimov VK 1

B1.1; B2

Mig 15

Mikoyan Mig 17

Klimov VK-1F

B1.1; B2

Mig 17

Mikoyan Mig 21

Tumansky

B1.1; B2

Mig 21

Savoia Marchetti S211

P&W JT15D-4C

B1.1; B2

S211

Soko Galeb

A-S/RR Viper

B1.1; B2

Galeb

TS-11 Iskra

WSK SO-3

B1.1; B2

TS-11

\n```\n\n","sortOrder":11},{"sectionNumber":"Part 2","sectionType":"part","heading":"for an employed authority or type rating holder, and a WHR employee whether trained or not — certification authorisation not required","content":"Part 2 — for an employed authority or type rating holder, and a WHR employee whether trained or not — certification authorisation not required\n\n> Note An employed authority or type rating holder, a trained WHR employee, and a WHR employee who is not a trained WHR employee, may carry out maintenance on these aircraft.\n\n

Aircraft

Licence Categories

Airframe

Engine type

Aermacchi AM-3 Bosbok

Lycoming

B1.2; B2

AESL CT4/CT6

Cont IO-360

B1.2; B2

Antonov AN2 Colt

Shvetsov

B1.2; B2

Auster series

Piston (various types)

B1.2; B2

Beech 18

PW R 985

B1.2; B2

BA/Klemm Eagle

Gypsy Major

B1.2; B2

BA/Klemm L-25 Swallow

Continental

B1.2; B2

Bell 47

Lycoming

B1.4; B2

CAC Boomerang

P&W R-1830

B1.2; B2

CAC Mustang

RR/Packard Merlin

B1.2; B2

CAC Winjeel

P&W R-985

B1.2; B2

CAC Wirraway

P&W R-1340

B1.2; B2

Cessna O2A/B

Cont. IO-360

B1.2; B2

Cessna L19/305 Bird Dog

Cont. O-470

B1.2; B2

Cessna 100, 200 series

Piston (various types)

B1.2; B2

Comper Swift

Pobjoy/Gypsy Major

B1.2; B2

Consolidated Catalina

PW R-1830

B1.2; B2

Convair CV340

R-2800

B1.2; B2

Curtis P 40

Allison V‑1710

RR/Packard Merlin

B1.2; B2

DH 84 Dragon

Gypsy Major

B1.2; B2

DH 89 Dragon Rapide

Gyspy 6

B1.2; B2

DH 83 Fox Moth

Gypsy

B1.2; B2

DH 60 Moth

Gypsy

B1.2; B2

Dh 82 Tiger Moth

Gypsy Major

B1.2; B2

Dh 94 Moth Minor

Gypsy Minor

B1.2; B2

DHA3 Drover

Gypsy Major

B1.2; B2

DHC1 Chipmunk

Piston (various types)

B1.2; B2

DHC 4 Caribou

PW R-2800

B1.2; B2

Douglas A-26/B-26 Attacker/Invader

PW R-2800

B1.2; B2

Douglas C47/DC3

PW R‑1830/
Wright R‑1820

B1.2; B2

Douglas DC4

PW R-2000

B1.2; B2

Extra 300L

Lycoming AEIO540

B1.2; B2

Fiat G59

RR/Packard Merlin

B1.2; B2

Grumman Avenger

Wright R‑2600

B1.2; B2

Grumman S2 Tracker

Wright R‑1820

B1.2; B2

Hawker Sea Fury

Bristol Centaurus

B1.2; B2

Lockheed Hudson

Wright R‑1820

B1.2; B2

Nanchang CJ 6

Zhouzhou

B1.2; B2

North American Mustang

RR/Packard Merlin

B1.2; B2

North American T28

Wright R‑1820

B1.2; B2

North American T6/SNJ/Harvard

P&W R-1340

B1.2; B2

Percival Provost Mk1

Alvis Leonides

B1.2; B2

Piper Cub series

Piston (various types)

B1.2; B2

PZL Wilga

Ivchenko

B1.2; B2

Ryan (all)

Kinner, Gypsy Major, Menasco Pirate

B1.2; B2

Short Scion

Pobjoy

B1.2; B2

Supermarine Spitfire

RR/Packard Merlin

B1.2; B2

Taylorcraft

Piston (various types)

B1.2; B2

Vought/Goodyear

Cosair (all variants)

B1.2; B2

Vultee BT 13

P&W R-985

B1.2; B2

Yakovlev Yak-3

P&W R2000; Klimov

B1.2; B2

Yakovlev Yak-18A/Yak‑18T

Vedeneyev

B1.2; B2

Yakovlev Yak 50

Klimov

B1.2; B2

Yakovlev Yak 52

Vedeneyev

B1.2; B2

\n```\n\n> Note to Civil Aviation Order\n\n \n\n> Note: 104.0\n\n> Note: The Civil Aviation Order (in force under the Civil Aviation Regulations 1988) as shown in this document comprises Civil Aviation Order 104.0 Instrument 2007 amended as indicated in the Table below.\n\n> Note: > Note: Table of Orders\n\n| Year andnumber | Date of registration on FRLI | Date ofcommencement | Application, saving ortransitional provisions |\n| ------------------------- | ------------------------------- | ----------------------- | --------------------------------------------- |\n| CAO 104.0 Instrument 2007 | 21 December 2007 (F2007L04877) | 22 December 2007 (s. 2) | |\n| CAO 104.0 2011 No. 1 | 22 June 2011 (F2011L01189) | 27 June 2011 (s. 2) | |\n| CAO 104.0 2012 No. 1 | 4 April 2012 (F2012L00789) | 5 April 2012 (s. 2) | |\n| CAO 104.0 2013 No. 1 | 26 September 2013 (F2013L01746) | 1 October 2013 (s. 2) | |\n| CAO 104.0 2015 No. 1 | 21 January 2015 (F2015L00065) | 22 January 2015 (s. 2) | |\n| CAO 104.0 2015 No. 2 | 1 June 2015 (F2015L00775) | 2 June 2015 (s. 2) | |\n\n

Table of Amendments

ad. = added or inserted am. = amended rep. = repealed rs. = repealed and substituted

Provision affected

How affected

subs. 1A

ad. CAO 104.0 2012 No. 1

subs. 1

am. CAO 104.0 2012 No. 1

subs. 2

am. CAO 104.0 2012 No. 1, CAO 104.0 2013 No. 1, CAO 104.0 2015 No. 1

subs. 3

am. CAO 104.0 2012 No. 1

subs. 4

am. CAO 104.0 2011 No. 1, CAO 104.0 2015 No. 1

subs. 5

ad. CAO 104.0 2012 No. 1
am. CAO 104.0 2015 No. 1, CAO 104.0 2015 No. 2

subs. 6

ad. CAO 104.0 2012 No. 1
am. CAO 104.0 2015 No. 1

subs. 7

ad. CAO 104.0 2012 No. 1
am. CAO 104.0 2015 No. 1

subs. 8AA

ad. CAO 104.0 2013 No. 1
am. CAO 104.0 2015 No. 1

subs. 8

ad. CAO 104.0 2013 No. 1
am. CAO 104.0 2015 No. 1, CAO 104.0 2015 No. 2

subs. 9

ad. CAO 104.0 2013 No. 1

subs. 10

ad. CAO 104.0 2015 No. 1, CAO 104.0 2015 No. 2

Appendix I

rep. CAO 104.0 2012 No. 1

Appendix 1

ad. CAO 104.0 2012 No. 1
am. CAO 104.0 2015 No. 1

Appendix II

am. CAO 104.0 2011 No. 1
rep. CAO 104.0 2012 No. 1

Appendix 2

ad. CAO 104.0 2012 No. 1
rep. CAO 104.0 2015 No. 1

Appendix 3

ad. CAO 104.0 2013 No. 1
am. CAO 104.0 2015 No. 1

\n```","sortOrder":12}],"analysis":{"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"},"kimi_summary":{"_metrics":{"completionTokens":1174},"content_quality":"ok","complexity_score":7,"scope_assessment":{"changed":true,"description":"The original 2007 instrument appears to have been a straightforward COA application and grant procedure. Through amendments in 2012, 2013 and 2015, it has expanded significantly to become a comprehensive training and certification framework covering: excluded systems, excluded types, WHR aircraft (with detailed aircraft-specific tables), and wood/fabric maintenance. The scope has grown from basic administrative procedures for COAs to a complex employee qualification and authorisation system that effectively regulates ongoing professional development and specialisation pathways for maintenance engineers."},"complexity_factors":["47+ defined terms in section 2 including nested definitions (e.g. 'authority or type rating holder' has 6 sub-definitions)","Multiple overlapping employee categories: excluded system employees, excluded type employees, WHR employees, wood and fabric employees, employed authority or type rating holders","Four separate training/authorisation pathways (sections 5, 6, 7, 8 and 10) with similar but not identical requirements","Extensive cross-referencing to external documents: CAR 1988, CASR 1998, Part 66 MOS, Schedule 8 of CAR, instrument CASA 03/15, instrument CASA 155/11","Conditional commencement dates in section 8AA with three different triggers based on when an entity became a COA holder","Two-part Appendix 3 table with different rules for Part 1 (certification required) vs Part 2 (no certification required) aircraft","Nested conditions: some engines excluded from COA training entirely ('MTO only'), requiring CASA-approved Maintenance Training Organisation training instead","Multiple notice requirements (provisional notices, confirmation notices) with specific timing constraints (5 months minimum, 3 days before lapse)","Transitional provisions allowing continued maintenance for employees who worked on WHR aircraft within 2 years before commencement"],"plain_english_summary":"This Order governs Certificates of Approval (COAs) that let organisations perform aircraft maintenance in Australia. It allows COA holders to train and issue temporary certification authorisations enabling licensed (and some excluded) engineers and employees to work on systems or aircraft types they’re otherwise not rated for, with special, longer authorisations and record rules for turbine-powered warbirds and tailored provisions for vintage piston aircraft.\n\nIt matters because it creates employer-based pathways to expand maintenance privileges without full formal retraining, supporting heritage and specialised operations."},"flash_summary":{"complexity_score":7,"scope_assessment":{"changed":true,"description":"The Order’s scope has been expanded since the 2007 instrument by later amendments that added WHR‑specific training and authorisation rules and appended lists of excluded systems and aircraft. In particular, subsection 8 (WHR requirements) was added (see Table of Amendments entry 'subs. 8' and transitional timing in 8AA.1–8AA.5), Appendix 1 (Excluded systems) was added/amended (see Table of Amendments 'Appendix 1'), and section 10 (wood and fabric authorisations) was added/amended (see Table of Amendments 'subs. 10' and s.10). Those amendments introduce new training pathways (including manufacturer or MTO restrictions), new CASA approval/delegation gates and transitional arrangements that broaden the Order’s regulatory reach compared with the original 2007 instrument."},"complexity_factors":["Extensive cross‑reference to other regulatory instruments (CAR 1988, CASR 1998, Part 66 MOS, Part 147 MOS) — see Definitions and multiple operational paragraphs (Definitions; e.g. references throughout sections 2, 5–10).","Multiple authorisation pathways and decision‑makers: COA holder issued certification authorisations vs CASA delegate or authorised person delegations — see 5.5, 6.6, 7.6, 8.6, 10.5.","Time‑limited, staged authorisations with provisional and confirmation notices and non‑extendable periods (6 months or up to 2 years for WHR) — see 5.2–5.9, 6.3–6.10, 7.3–7.10, 8.4–8.5, 10.2–10.9.","Detailed, prescriptive appendices listing excluded systems and individual WHR types that drive which licences/ratings apply — see Appendix 1 and Appendix 3.","Requirement for CASA approval of COA holder quality control manuals and specified training standards (including AQF unit equivalents) — see 5.4, 6.5, 7.5, 10.4.","Record‑keeping and notification obligations on COA holders (notice of completion; retain copies for at least 2 years) — see 5.6–5.8, 6.7–6.9, 7.7–7.9, 8.7–8.8, 10.6–10.9.","Manufacturer and MTO limitations for certain engine/type training (’MTO only’ annotations) adding routing complexity — see 6.2, 7.2 and related notes.","Transitional and commencement rules creating staged implementation and grandfathering paths (subsection 8 timing provisions) — see 8AA.1–8AA.5."],"plain_english_summary":"This Order sets the rules for applying for and holding a Certificate of Approval (COA) that authorises organisations to carry out aircraft maintenance. It lets COA holders train employees and issue time‑limited certification authorisations so staff can work on specific excluded systems, excluded aircraft types, Warbird/Historic/Replica (WHR) aircraft, or wood‑and‑fabric tasks — subject to CASA approval of quality control manuals, required delegations and record‑keeping."}},"importantCases":[],"_links":{"self":"/api/acts/civil-aviation-order-104-0-certificates-of-approval-application-grant-and-conditions","history":"/api/acts/civil-aviation-order-104-0-certificates-of-approval-application-grant-and-conditions/history","analysis":"/api/acts/civil-aviation-order-104-0-certificates-of-approval-application-grant-and-conditions/analysis","conflicts":"/api/acts/civil-aviation-order-104-0-certificates-of-approval-application-grant-and-conditions/conflicts","importantCases":"/api/acts/civil-aviation-order-104-0-certificates-of-approval-application-grant-and-conditions/important-cases","documents":"/api/acts/civil-aviation-order-104-0-certificates-of-approval-application-grant-and-conditions/documents"}}