Regulation 6 Fees—partial examinations
Where a type approval certificate has been issued in relation to an engine or engine family and in consequence of an alteration in any design specification, either–
a further examination of an engine is needed with a view to the issue of a further certificate but the alteration is not so extensive as to require that the further examination shall be as complete and exhaustive as the original examination; or
an applicant requires a further certificate but the alteration is not so extensive as to require a further relevant examination of any engine and can be carried out on an inspection of data supplied by the applicant,
the fee for such an examination or inspection is such proportion of the relevant fee prescribed in regulation 3 as the Secretary of State considers to be appropriate in view of the nature and extent of the examination or inspection.