Which countries produce PMA parts?
The United States of America, New Zealand, and Australia issue PMA authorizations. New Zealand Civil Aviation Rules Part 21, Subpart P, prescribes rules governing the approval of designs for replacement or modification parts by the issue of New Zealand Parts Manufacturing Approval (NZ PMA) authorizations. The Australia Civil Aviation Regulations 1998, Part 21 prescribe rules governing the approval of designs for replacement or modification parts by the issue of Australian Parts Manufacturer Approval (APMA) authorizations. In the United States of America, FAA PMA are issued for the production of modification or replacement parts, which includes; materials, parts, processes, and appliances. It should be noted that an FAA PMA authorization is for both design and production approval for replacement parts, and only for production approval for modification parts.
At this time, in Canada, eligibility for PMA part installation only applies to FAA PMA parts. Other Civil Aviation Authorities may have PMA authorizations, however, there are no provisions within Canadian regulations for installation of these parts on Canadian registered aircraft, or on other aeronautical products to be installed thereon.
The proposal to delete Standard 571.07 (c) to (h), that prescribes restrictions to FAA PMA part installation in aeronautical products for which Canada has jurisdiction for the initial type design, was accepted at the June 2001 Canadian Aviation Regulatory Advisory Council (CARAC) meeting.
An exemption to Standard 571.07 (c) to (h) referred to as "FAA PMA exemption" was issued Feb. 13, 2002 to allow installers of parts on Canadian registered aircraft to use these additional acceptable sources of supply. This exemption addresses "new, FAA PMA replacement parts" and will be valid for the expected period of time required for regulatory changes to complete the CARAC process.
This exemption is subject to the following conditions:
1. The part shall be marked in accordance with FAA PMA part marking requirements set out by the FAA.
2. The part shall be certified by the part manufacturer, as conforming to the design data, approved by the FAA or by Transport Canada Civil Aviation, through a certificate of conformity.
3. The certificate of conformity set out in condition 2 shall indicate the aeronautical product(s) for which it is eligible.
4. If the certificate of conformity is issued by a person other than the FAA PMA holder, the certificate shall indicate that the production approval holder has authorized direct shipment.
5. The installer of parts shall comply with all other requirements of the Canadian Aviation Regulations.
Regarding item No. 2 above, it is expected that parts received from the United States would be certified on an "Airworthiness Approval Tag" (FAA form 8130-3). In Canada, Airworthiness Manual Section (Standard) 561 compliant manufacturers certify their product on an "Authorized Release Certificate" (TCCA form 24-0078). Since FAA PMA part manufacturers do not yet have the privilege of certifying 8130-3 forms, it was agreed at the CARAC meeting held in June 2001, that Canada would accept the FAA PMA manufacturer's certification to their parts as conforming to the design data approved by the FAA, on a document of their own design.
This BASA change and FAA PMA exemption does not affect existing requirements for FAA PMA "modification parts." If the FAA PMA part is a "modification part," it receives design and installation approval through issue of an FAA STC. To obtain production approval for modification parts the applicant must obtain an FAA PMA. These modification parts, which are PMA'd for production purposes only, are not covered by this exemption. However, modification parts approved by FAA STC may be used following the TCCA STC procedures presented in the BASA Implementation Procedures. Modification part status can be determined by confirming if the FAA PMA approval means was by FAA STC.
"Used" FAA PMA parts are to be treated like any other used aircraft part in Canada.
If you wish to see a copy of the FAA PMA exemption, it is posted on the TCCA web site at: http://www.tc.gc.ca/civilaviation/maintenance/AARPE/pmaexemp.htm.
Mike Whissell is a Civil Aviation Safety Inspector for the Aircraft Maintenance and Manufacturing Branch in Ottawa.
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