239、Remove the bolts that attach the transmission housing to the engine. 拆下连接变速器外壳到发动机的
螺栓。

A. 　 removal of the cover is necessary

B. 　 It is necessary to install the cover

C. 　 Itis a must to remove the cover

A. 　 You had better not to weld engine components when the engine is installed on the airframe.

B. 　 You're not allowed to operate engine components when (the engine is installed on the airframe.

C. 　 You had-better not to weld engine components when the engine is running.

A. 　 Check all parts with clear defects in accordance with standard industry practices.

B. 　 Check all parts for visible defects in accordance with standard industry practices.

C. 　 Check all parts for serious defects in accordance with standard industry practices.

A. 　滤油器内如有金属颗粒,应检查滤芯是否有磨损

C. 　滤油器内如有金属颗粒,应确认滤芯的磨损情况

A. 　检查单可能也包括关于飞机操作的补充信息

B. 　检查单可能也提供与飞机操作相关的信息

C. 　检查单也确认了一些关于飞机操作的辅助信息

A. 　 The STE sentence uses approved words to give the same information clearly in a different way.

B. 　 The STE sentences use the approved different words to vaguely show the same information.

C. 　 STE sentences use different words in approved means to obviously express the same information.

A. 　 However, manufacturers may omit System/Chapters that are not applicable to the product or combine
Systems/Chapters where it is feasible.

B. 　 However, manufacturers may adopt Systems/Chapters that are not applicable to the product or constitute
systems/Chapters when necessary

C. 　 However, operators may omit Systems/Chapters applicable to the product or constitute Systems/Chapters
where practical.

A. 　 Light surface blooming, which can occur ohv items in storage, is not detrimental to the component.

B. 　 Surface blooming, often found on corroded items; has little adverse effect on the component when it is
mild.

C. 　 items in storage tend to have surface blooming which is beneficial to the component.

A. 　此外,申请必须包括一个检查方法,该方法包括必要的检查频次和检查范围并提供给飞机持续适航部。

B. 　此外,申请方必须有一个检查方案,该方案包括为保证飞机持续适航所需要的检查频次和检查程度。

C. 　此外,申请方必须有一个检查目标,包括检查频次和检查内容,必须保障飞机的持续适航。

A. 　确保着陆时切断灯的开关电源连接

B. 　确保着陆灯断开电门的电连接是安全的

C. 　确保着陆灯安全切断了开关电源连接