In addition to a change in ownership (see point 21.A.249), the following changes to the design management system should be considered to be ‘significant’ for the demonstration of compliance, or for the airworthiness, operational suitability, or environmental compatibility of the products:
(a)Organisation Relocation to new premises (see also GM 21.A.249); A change in the industrial organisation (partnership, subcontractors, design work sharing), unless it can be shown that the independent verification function of the demonstration of compliance is not affected; A change in the parts of the organisation that contribute directly to the airworthiness, operational suitability, or environmental compatibility (independent verification function, airworthiness function (or equivalent)); A change to the independent monitoring principles of compliance and adequacy (see point 21.A.239(e).
(b)Responsibilities Change of the management personnel: the head of the design organisation (HDO) (see point 21.A.245(a)) the chief of the airworthiness function (see point 21.A.245(b)); and the chief of the independent monitoring function of compliance and adequacy of the design management system (see point 21.A.245(b)(2)); and the safety manager (see point 21.A.239(c)(2)). Reporting lines between the personnel that is nominated in accordance with point 21.A.245(b) and the HDO. Allocation of responsibilities that affect safety, airworthiness, operational suitability, or environmental protection.
(c)Procedures Change to the principles of procedures related to: the type certification; the classification of changes and repairs as ‘major’ or ‘minor’ (see point 21.A.263(c)(1)); the handling of major changes and major repairs; the approval of the design of minor changes and minor repairs (see point 21.A.263(c)(2)); the approval of the design of certain major repairs (see point 21.A.435(b) or 21.A.263(c)(5)); the approval of the conditions under which a permit to fly can be issued (see point 21.A.263(c)(6)); the issue of a permit to fly (see point 21.A.263(c)(7)); the approval of certain major changes to a type certificate (TC) (see point 21.A.263(c)(8)); the approval of certain supplemental type certificates (STCs) (see point 21.A.263(c)(9)); the approval of certain major changes to certain STCs; (see point 21.A.263(c)(9)); continued airworthiness or continued operational suitability (see point 21.A.3B); the configuration control, when airworthiness, operational suitability or environmental protection is affected; the acceptability of design tasks that are undertaken by partners or subcontractors (see point 21.A.239(d)(3)); the issue of data and information under the obligation of point 21.A.265(h); and the safety risk management process (see point 21.A.239(c)(3)).
(d)Resources A substantial reduction in the number and/or experience of personnel (see point 21.A.245(d)(1)).