Drain or use the potable water system a minimum of one time each three days.

A. 适航指令是从事飞机进行维修时必须使用的程序。

B. 在航空器上执行适航指令时，必须阅读本程序。

C. 适航指令必须是对飞机维修有用的程序。

A. 每个电干扰盘的后部都有一个灵活的汇流条组件。

B. 每个电干扰盘的后部都有一个固定的汇流条组件。

C. 每个配电盘的后部都有一个固定的汇流条组件。

A. Due to the incorrect level of pressure, the system will not work.

B. As long as the fluid level remains unstable, the system will fail.

C. Because the fluid level is incorrect, the system will not operate.

A. CAP是飞机持续适航的初级文件，包括各相关程序。

B. CAP是包含飞机持续适航程序的主要文件。

C. CAP是飞机持续适航的初始文件，由相关程序组成。

A. 确保厕所组件正确冲洗。

B. 确保厕所马桶正常工作。

C. 确保厨房组件正常工作。

A. Keep all the parts that are serviceable and discard those that are broken.

B. Retain the parts that are functional and discard those that are of poor condition.

C. Keep all the parts that are operational and drop those that are contaminated.

A. ATA chapter is indicated by a pair of the digits of the first fault code.

B. ATA chapter is indicated by latest pair of the digits of the fault code.

C. The first pair of the digits of fault code indicates the applicable ATA chapter.

A. Clean all lint, dust and debris from the ventilation holes located on the aft side of the captain＇s primary flight, navigation, and center lower engine display units.

B. Clean the vent holes behind the captain＇s primary flight, navigation and lower middle engine display units which are blocked by lint, dust and debris.

C. The captain＇s primary flight, navigation, and center lower engine display units must be cleaned since the ventilation holes behind them are clogged by lint, dust and debris.

A. The Design Authority is responsible for approving and changing the repair procedure.

B. Any alteration to this repair procedure must get verbal approval of the Design Authority.

C. If you change this repair procedure, get approval of the Design Authority.

A. 请参阅相应的制造商维修手册。

B. 请参阅授权的制造商维修手册。

C. 请参阅相应的供货维修手册。