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

4 Attention is drawn to the following:(a)(b)(c)Evidence to demonstrate that continued airworthiness has been established,means the aircraft records show that such aircraft have been dismantled,opened up and the upholstery removed to such an extent as to ensure that anadequate sample of timber and glued joints have been inspected and, if foundto be defective, made good. In cases where defective timber and glued jointsare found, it will be necessary to extend a sample of areas checked in order toestablish confidence in the condition of the complete structure.Wooden aircraft left continuously in the open or, conversely, stored for longperiods in very dry conditions are particularly susceptible to deterioration.The type of storage provided for the aircraft must therefore be taken intoconsideration when assessing the amount of inspection necessary to meet therequirements of (a) above.Prospective purchasers of aircraft registered outside Hong Kong are advised:(i)(ii)To establish with the Director-General whether the aircraft type iseligible for the issue of a Hong Kong Certificate of Airworthiness andthe requirements/conditions that would apply. Some aircraft noteligible for a Certificate of Airworthiness may qualify for a Permit toFly.Where such aircraft are of wooden construction, to consider carefullythe condition of the structure and its history before applying for theissue of a Hong Kong Certificate of Airworthiness. The Director-General will require information as to the type of constructions andglue used.5 Supplementary informationUKCAA Civil Aircraft Airworthiness Information and Procedures Leaflet 6-1,Inspection of Wooden Structures.6 CancellationThis Notice cancels Airworthiness Notice No.50 Issue 4, dated 31 January 2002,which should be destroyed.Norman LODirector-General of Civil Aviation30 September 2005 AN-50 P.2