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时间:2011-08-28 17:10来源:蓝天飞行翻译 作者:航空
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4.4.5.1.2 ADs are divided into two categories:
a) those of an urgent nature requiring immediate compliance upon receipt; and
b) those of a less urgent nature requiring compliance within a relatively longer period.
4.4.5.1.3  The contents of ADs include the aircraft, engine, propeller, equipment or instrument type, model and serial numbers affected. Also included are the compliance time or period, a description of the difficulty experienced, and the necessary corrective action.
4.4.5.1.4 A large number of States operate aircraft that have been manufactured or certificated in another State. In order to continue to maintain such aircraft at a level of airworthiness equivalent to that achieved at type certification, the State in which such aircraft are currently registered needs to regularly obtain all information, particularly ADs, service bulletins, etc. issued by the type certification authority, by the type design organization or, on rare occasions, by the airworthiness authority of any other State in which the same type of aircraft are registered, particularly where such information pertains to the continuing airworthiness and the prevention of recurring defects in aircraft and its components and equipment. It is therefore necessary that each State receive all continuing airworthiness information relating to aircraft on its registry, no matter what State originates the information. It is equally necessary, to facilitate coordinated corrective measures, for the State of Design to receive continuing airworthiness information originated in any other State relating to aircraft it has certificated. With the introduction of the Internet, some States, together with commercial organizations, provide information regarding ADs via this medium.
4.4.5.2 Responsibility for airworthiness directives
4.4.5.2.1 Responsibilities of the operator
4.4.5.2.1.1 The manner in which the operator complies with ADs issued by the State of Registry depends upon the arrangements under which the operator has leased, chartered or otherwise acquired control of an aircraft. The operator may arrange with the owner for the latter to carry out all actions arising out of ADs, or the operator may arrange to carry them out himself.
4.4.5.2.1.2 The operator will determine by which means it will be kept informed on ADs. However, the operator must ensure that the ADs have been implemented in the manner prescribed and refrain from engaging in flight operations contrary to the provisions of the applicable ADs.
4.4.5.2.2  The owner’s role
4.4.5.2.2.1  The owner should not use his aircraft, or knowingly allow it to be used by others, except in compliance with ADs issued up to date. If the owner leases the aircraft or allows another person to maintain it, the owner should take effective steps to assure compliance with ADs. The owner cannot assume that others will take over the burden of maintenance automatically. The situation may call for a written agreement, or a verbal one, depending on circumstances. But there should be no doubt as to who will take the necessary responsive action to ADs.
4.4.5.2.2.2  In some cases, the owner may elect to also comply with ADs issued by other than the State of Registry in order to facilitate transfer of registration at the end of a lease.
4.4.5.2.3  The role of aircraft maintenance engineers or maintenance organizations
4.4.5.2.3.1  The responsibility of the aircraft maintenance engineer (AME) or maintenance organization with regard to AD compliance should also be clearly understood. Some operators may be under the impression that when they submit their aircraft for maintenance, or a progressive inspection, the AME will routinely ensure that all ADs in effect on that date are complied with before signing off on the inspection. This is not necessarily true. Some ADs in effect may deal with components which are not normally part of the inspection, such as radios. Also, some ADs already in effect at the time of the inspection may have delayed compliance dates; in such cases the AME is not obliged to act upon them, and may not do so unless requested by the operator.
 
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