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

2.1.2 Where the system or equipment is to be the subject of an application tothe Director-General for approval as part of an engine or propeller, asprovided by HKAR-1 Sub-section 1.4-2 or 1.4-4, the Software Levelsof the system or equipment shall be declared in the Engine or PropellerType Certificate Data Sheet or the equipment Declaration of Design andPerformance, as appropriate.2.1.3 Where the equipment is to be the subject of an application to theDirector-General for Accessory Approval, Appliance Registration orRadio Approval, as provided by HKAR-1 Sub-section 1.4-8 or 1.4-10,the Software Levels, adopted by the equipment manufacturer as a basisfor the design, and the reference number of the associatedAccomplishment Summary # , shall be declared in the Declaration ofDesign and Performance.2.1.4 Where the system or equipment is to be approved under the ComponentProcedure of HKAR-1 Sub-section 1.4-8 or, under the aircraftmodification procedure of HKAR-1 Sub-section 1.2-5, the SoftwareLevels of the system or equipment shall be declared.2.1.5 Details of system and equipment Software Levels should be madeavailable to the aircraft operators to assist in the evaluation of postcertificationmodifications (see paragraph 2.3).2.2 Initial CertificationIn respect of a software-based system or equipment, the responsible DesignOrganisation shall provide evidence to the Director-General that the softwarehas been designed, tested and integrated with the hardware in a manner whichensures compliance with the relevant requirements of HKAR-1 Sub-section 1.4-2, 1.4-4, 1.4-8, 1.4-10 and 1.3-11 (see paragraph 3.1).2.3 Post-Certification ModificationsIn respect of systems and equipment with Level A, Level B or Level C Software,a modification which affects software shall not be embodied unless it has beenapproved by the responsible Design Organisation (see paragraph 3.2).3 Interpretation of Requirements3.1 Initial Certification3.1.1 An applicant for the approval of a software-based system or equipmentmay use the guidance material given in Document DO-178B/ED-12B (oran agreed equivalent standard).3.1.2 A Software Configuration Management Plan, e.g. as defined in Section 7# The Accomplishment Summary is identified in paragraph 11.20 of DO-178B/ED-12B.31 January 2003 AN-45A P.2