“Examiner” should be here understood as “invigilator” (i.e. the personnel responsible for merely running the examination).
The examiners (invigilators) are not required to be experts in the subjects examined when relative to the MCQs in accordance with Appendix II to Part-66. However, the assessment of essay questions as part of the basic knowledge has to be conducted by knowledgeable personnel with the help of a standard reply. Eventually, the invigilators must be trained to the examination process.
Examiners should demonstrate a clear understanding of the examination standard required by Part-66 and have a responsible attitude to the conduct of examinations such that the highest integrity is ensured. (GM 147.A.105(g)).
Regarding the type training examination and assessment standard as well as type examination standard as described in Part-66, Appendix III, paragraphs 4 and 5, the theoretical element examination can follow the same principle as above; however, for the practical element assessment, the examiner(s) must be appropriately qualified. Further provisions are available in Appendix III to AMC to Part-66.