This section must set forth each mandatory replacement time, structural inspection interval, and related structural inspection procedure required for type certification.

A. Manufacturer determines specific range properly to describe sophisticated and professional information. The information can be put in Maintenance Maunal or other documents.

B. Detailed information on more intricate and specific subjects can be written in two ways: Maintenance Manual or individual documents. The two ways are dependent on manufacturer＇s option properly.

C. It is up to the manufacturer to decide where and to what extent to include detailed information about more sophisticated and professional topics, either in the common Maintenance Manual or in another new documents.

A. Troubleshooting can only be performed after the cause of the malfunction has been found out.

B. You should perform troubleshooting according to the procedure and find out the technical failure.

C. According to the procedure, perform the troubleshooting to solve the cause of the malfunction.

A. The gyroscope will become stable before less than 15 seconds.

B. The gyroscope will become stable for at least 15 seconds.

C. After about 15 seconds, the gyroscope will become stable.

A. 《飞行员操作手册》的本节应包含FAR（或其他适用法规）和本规范要求的所有绩效信息。

B. 《飞行员操作手册》的此节内容应包含FAR（或其他适用规章）和本规范要求的所有性能信息。

C. 《飞行员操作手册》的这一节内容应包含FAR（或其他适用条例）和本规范要求的所有参数信息。

A. If the tire temperature is unusually high, open the valve.

B. If the tyre pressure is insufficiently high, open the valve.

C. If the tire pressure is unusually high, open the valve.

A. The component was damaged badly, the repairing cost is over 60% of the total price. The workshop suggests reporting as an unserviceable part.

B. The component was damaged heavily; the repairing cost is over 60% of the total price. The workshop suggests scrapping.

C. The component was destroyed heavily; the repairing cost is 60% of the total price. The workshop suggests segregation.

A. Vigorously scrub the surface with a rough, dry cloth.

B. Polish the surface with a soft, damp cloth.

C. Rub the surface quickly with a soft, dry cloth.

A. 两次检查后最少等待两分钟。

B. 两次检查之间的最短时间是两分钟。

C. 两次检查之间最多等待两分钟。

A. 更换滑阀，确保其表面光滑。

B. 如果滑阀表面粗糙，则将其更换。

C. 如果活门表面粗糙，则更换其滑动桶。

A. A lab analysis of the contamination is required to the frequently clogged filters.

B. When you find the filters blocked in a very short time, ask the vendor to inspect them for any contamination.

C. If the filters get clogged at an unusually early stage, send them to the laboratory to analyze the contamination.