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

CIVIL AVIATION DEPARTMENTHONG KONG, CHINAAirworthiness NoticeTHIS NOTICE GIVES DETAILS OF A MANDATORY ACTIONCARRIAGE OF SUPERNUMERARIES IN CARGO AEROPLANENo. 104Issue 131 July 20111 ApplicabilityThis Airworthiness Notice is applicable to Hong Kong registered aeroplane issuedwith a Certificate of Airworthiness in Transport Category (Cargo) equipped forcarriage of occupants other than crewmembers.2 Introduction2.1 Class E cargo compartments are usually remote from the flight deck andencompass the entire interior of the aeroplane. The means of controlling firesthat might occur in the cargo compartment is to ensure that there are means toshut off the ventilating airflow to, or within, the compartment, and starve thefire of oxygen. Advisory material provides guidance that includesdepressurising the aeroplane and maintaining an altitude that will not supportcombustion. For this reason, only crewmembers are permitted on board suchaeroplanes.2.2 Recent aircraft designs introduce “supernumerary compartment” in aeroplaneswith Class E cargo compartment configurations. The supernumerarycompartments are designed to carry a certain category of persons which aretermed “supernumeraries”. Supernumeraries are instructed persons and arebriefed for the duty on board they are responsible for. The approvedaeroplane flight manual contains the definition and the conditions under whichthe supernumeraries may be carried, and provide specific instruction forpre-flight briefing.Note:“Supernumeraries” are sometimes referred as “couriers”; and “supernumerarycompartments” are sometimes referred as “courier compartments”.2.3 The certification requirements for aeroplanes address occupants as being either“crew” or “passengers”. Due to differences in training, physical capabilities,and other factors (such as familiarity with the aeroplane), the means requiredAN-104 P.131 July 2011