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

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

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Box 4Box 5The question takes into account failure(s) in which either the singlehidden/dormant failure (from Box 1) or in combination with oneadditional failure could cause one of the identified undesirableconsequences.This is to propose various applicable and effective tasks and/orpreventative actions, either singularly or in combination, for theanalyst to identify:(5a)(5b)(5c)(5d)Inspection – either:• Detailed (An intensive examination of a specific item,installation or assembly to detect damage, failure orirregularity. Available lighting is normallysupplemented with a direct source of good lighting at anintensity deemed appropriate. Inspection aids such asmirrors, magnifying lenses, etc. may be necessary.Surface cleaning and elaborate access procedures maybe required).Or• General Visual (A visual examination of an interior orexterior area, installation or assembly to detect obviousdamage, failure or irregularity. This level ofinspection is made from within touching distance unlessotherwise specified. A mirror may be necessary toenhance visual access to all exposed surfaces in theinspection area. This level of inspection is made undernormally available lighting conditions such as daylight,hangar lighting, flashlight or drop-light and may requireremoval or opening of access panels or doors. Stands,ladders or platforms may be required to gain proximityto the area being checked.)Functional Check• A quantitative check to determine if one or morefunctions of an item performs within specified limits.Restoration Task• That work necessary to return the item to a specificstandard. Restoration may vary from cleaning orreplacement of single parts up to a complete overhaul.Discard• The removal from service of an item at a specified lifelimit.(5e)Update Maintenance Practice/instructions• Amend standard practices (either company orAN-65 A1 P.3<strong>31</strong> January 2006

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