Notice 21 Personnel Certification for Non Destructive Testing of ...

General Civil Aviation Authoritywithin the organisation's exposition, and any change inthis position shall be advised to the GCAA.3.3 Where the nominated Level 3 is not qualified in allmethods used by the organisation, then the additionalLevel 3 personnel necessary to provide coverage shallbe certified to PNC Level 3.3.4 Additional Level 3 certification holders shall be listed inthe organisation's exposition or reference made in theexposition to other documents containing the list ofLevel 3 holders. Any changes to this list are to benotified to the GCAA.3.5 The GCAA may accept persons outside theorganisation as the nominated Level 3, provided writtenagreement exists between the individual ad theorganisation.4. Inspections and Certification of Inspections4.1 NDT shall be carried out by personnel approved inaccordance with the organisation's written practice/procedure/ exposition. Where NDT procedures arespecified by the organisation responsible for the designand/or manufacture of the aircraft, material, structureor component, then these must be used except wherechange is permitted and authorised as defined inparagraph 5 of this Notice. Where inspections are to beundertaken, for which the responsibledesign/manufacturing organisation has not specifiedNDT procedures/specific instruction, then the NDTprocedures/instruction shall be prepared inaccordance with paragraph 5 of this Notice andapproved by a Level 3 holder qualified in theapplicable method.General Civil Aviation Authority4.2 Normally, certification of inspections will be made bypersonnel who hold Level 2 or Level 3 authorisations.However, where an inspection task is determined bythe nominated Level 3 to have clearly definedacceptability and rejection criteria, then certificationmay be carried out by an authorised Level 1, asdetailed within the written practice/ procedure/exposition.4.3 Where Level 3 is required to carry out and certify anNDT inspection, then this person must either hold currentLevel 2 certification, then they have successfullycompleted an appropriate Level 2 practicalexamination and maintained continuity in theapplication of practical testing, as defined in thereferenced standards and detailed in the writtenpractice/ procedures/ exposition.5. NDT Procedures and Instructions and theirApproval5.1 NDT procedures and instructions, published andspecified by the type certificate holder in NDT manuals,service bulletins, approved drawings etc, constituteairworthiness data.5.2 Where the airworthiness data published by the typecertificate holder permits simple changes ofequipment, probes etc, then such changes may becarried out by a Level 2 or Level 3 suitably qualified inthe appropriate method.5.3 Changes not permitted in the airworthiness data requirethe written agreement of the type certificate holdersresponsible for the design of the product/ structurebefore such a change is implemented.Airworthiness Notice 21 Page 3 of 8Sunday April 6 th , 2006Airworthiness Notice 21 Page 4 of 8Sunday April 6 th , 2006