Is it really up to Eurocopter?
SA Civil Aviation Technical Standards – General Maintenance Rules 43.02.08
1. General
(6) Maintenance away from base may only be performed at an approved AMO or at a facility approved by the Commissioner where equipment, test facilities and spares for the type of maintenance to be undertaken are available. All the necessary manuals and catalogues for the particular aircraft shall be available. Prior to the commencement of such maintenance, the AMO or facility shall advise the Commissioner of its intention to carry out the maintenance and supply the following information:
(a) Aircraft registration.
(b) Name of the organisation to carry out the maintenance, and approvals held.
(c) Location where the intended maintenance is to be performed.
(d) Type of maintenance to be carried out.
(e) Name and licence or approval number(s) of the person(s) responsible for the maintenance.
(8) Failure to comply with any applicable mandatory requirement or part of a maintenance schedule invalidates the validity of the aircraft’s certificate of airworthiness unless exemption has been obtained from the Commissioner in terms of Part 11 of the CAR.