Following a review of UK CAA issued EASA approvals and the way that aircraft types have been listed on approval
certificates, a decision has been made to consolidate individual aircraft types within the A2, A3 and A4 ratings on
Part 145 and Part M subpart F approvals into generic groups where ever possible. This consolidation applies to
non-complex aircraft as defined in Article 3 of Regulation (EC) No. 216/2008, with the exception of multi-engine
helicopters. These new group ratings will also be applied to organisations holding Part M Subpart G approval. These new
groups are based on the aircraft which are eligible for Group ratings under a Part 66 aircraft maintenance engineers
license, but also includes Sailplanes, Airships and Balloons for which there is currently no Part 66 license.
While the approval certificate may be at a generic group level, the ‘Scope of Work’ section of the organisations
approved exposition should fully specify the individual aircraft types for which the organisation has the necessary
competence and capability to manage/maintain. In order to assist the CAA in approving such expositions, it is
recommended that where group ratings are listed on approval certificates, the individual aircraft types are listed in
the Scope of Work section under the relevant group.
Aircraft that fall within the group ‘Piston engine aeroplanes – mixed construction not exceeding 5700 Kg’ are those
aircraft listed in the EASA Part 66, ‘Group 3’ license listing. Aircraft eligible for this group are those whose
construction is made up of a combination of ‘Wood + Metal tubing Fabric’ or ‘Wood + Composite’ or ‘Composite + Wood’ or
‘Metal + Wood’.
Aircraft types that do not fall into the groups below in the A2, A3 or A4 ratings will need to be listed
individually on approval certificates.
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