674 once designed and approved,the establishment of thorough maintenance procedures is a must.

873、The aircraft may be maintained in accordance with the latest information issued by the manufacturer.

872、Instead of using the actual date of issue on each page of an original issue of a Document, the words “ORIGINAL ISSUE” may be used. In such a case, the Title Page and the Table of Contents pages preceding each section of the Document must bear the actual date of issue following the words “ORIGINAL ISSUE”.

871、Airline operators are encouraged to evaluate their particular 737 operating environment, accompanied with debris findings at time of cleaning to identify and implement the most effective and economic maintenance interval.

870、If contamination causes a blockage of more than 30 percent of the holes,then clean the holes on the rear of the display units.

869、Airworthiness Directive is procedure that must be used when performing maintenance on an aircraft.

868、The flight crew can use the flight director commands to control the attitude of the airplane.

867、The topic sentence is the first and most important sentence in a paragraph.

866、This method is recommended as minimizing errors of distribution, and also informs owners of the availability of systems and equipment.

865、所有页面上必须有制造商的报头。出版物标题,飞机型号,发行或修订日期。

864、Get the correct tools to open the containers for these materials.