31 July 2011 C1 CIVIL AVIATION DEPARTMENT HONG KONG ...

CIVIL AVIATION DEPARTMENTHONG KONG, CHINAAirworthiness NoticeCONCESSION CONTROL AND RELATED CERTIFICATIONSNo.52Issue 631 January 20021 Concessions are written authority for an appropriately licensed aircraft maintenanceengineer, or appropriately authorised person employed by an Approved Organisation toaccept a limited number of aircraft, systems, components or parts thereof for use on anaircraft which do not wholly comply with the relevant Hong Kong AviationRequirements but nevertheless do meet an acceptable level of airworthiness in anyparticular case in the following categories:-ABCItems which do not strictly meet the approved drawings, specifications, manualsor bulletins, but which in the opinion of an appropriately approved designorganisation will not reduce the level of airworthiness below the requireddesign minimum in the particular case.Items which form part of agreed CAD concession procedures approved as partof an approved maintenance schedule. This could include cases where partsand/or facilities are temporarily not available.Items outside categories A or B where agreement has been reached with theDirector-General for the particular item concerned.2 Concession Reports must only be issued by Persons within an Approved Organisationwho hold personal Approval to furnish such reports, and subject to any conditions thatmay be applied.3 Persons so authorised must demonstrate to the Quality Manager that they haveknowledge and experience commensurate with the level and scope of the authorisationsought.4 For each concession the Quality Manager of a CAD approved organisation isresponsible for ensuring that:-4.1 Having regard to all the circumstances an acceptable level of airworthinesswill be achieved and no person boarding or on board the subject aircraft willsuffer hazard;4.2 Adequate consideration has been given to the possibility of an adverse effect onairworthiness as a result of defects or malfunctions existing or likely to exist inthe aircraft to which the concession is to apply;AN-52 P.131 January 2002