Water/waste subsystem includes wash basins, toilet assemblies, tanks, valves, etc., if applicable.

A. Ensure that no other repairs are underway in the repair area before undertaking this procedure.

B. This procedure can only be done if there are other repairs in the repair area.

C. Only proceed with this procedure if there are concurrent repairs being carried out in the designated repair area.

A. When you access to the rear fuselage through the access panel.

B. When you get to the aft aircraft body through the control panel.

C. As you reach to the aft part of the aircraft by the visit door.

A. 确保没有剪断操纵钢索。

B. 确保没有关断控制电源。

C. 确保没有连接控制电缆。

A. 当火警启动时，温度增加并引起灭火器工作。

B. 当火焰开始时，温度增加并造成触发器工作。

C. 当起火时，温度升高并使探测器工作。

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. 如果飞机上某个泵出现重复故障，那么可以通过此程序将壳体回油管、壳体回油软管或壳体回油软管快卸接头中的残渣冲洗掉。

B. 如果飞机上某个泵在一处出现故障，可以将壳体回油管，壳体回油软管或壳体回油软管快卸接头中的残渣清洗掉以完成此程序。

C. 如果飞机上某个泵在一处出现重复故障，说明在壳体回油管，壳体回油软管或壳体回油软管快卸接头中存在无法通过此程序清洗干净的残渣。

A. Turn the handle of the door until the lower gate is lifted.

B. For lowering the upper door, door handle should be turned.

C. The lever of door should be turned until the lower door opens.

A. This Issue 7 of the specification fully takes place all issues and revisions before.

B. This Issue 7 of the specification fully covers all prior issues and revisions.

C. This Issue 7 of the specification fully replaces all previous issues and revisions.

A. The manufacturer may set up steps and feedback the airworthy conditions discovered when complying.

B. The manufacturer may establish procedures to provide feedback on unairworthy conditions that were discovered when complying.

C. The manufacturer may establish procedures and comply regulations to provide feedback on unairworthy conditions.

A. Use backthrust to change the direction of the exhaust to achieve contrary thrust.

B. Thrust reverser is used to change the direction of the exhaust gases for reverse thrust.

C. To change the direction of the exhaust nozzle, the thrust reverser is used to obtain the opposite thrust.