983. 确保液压油箱内的液压油高于最低液面。

2380. Examine the area that is around the drain holes for signs of corrosion

2379. 准备用于泄漏测试的管子。

2378. The pressure value must be more than 800 kpa

2377. The internal logic adjusts to sudden changes in temperature

2376. 确保使用正确比例的清洁剂和冷水。

2375. If the circuit breaker opens, de-energize circuit

2374. Do not do this procedure in the hangar

2373. In designing schematic diagrams, it may be necessary to compromise between detail that is necessary to make the diagram self-explanatory, and simplicity that is essential for ease of reading and understanding

2372. A modular engine construction is used on all modern aircraft

2371. Lubricate the threads of the two bolts with a small quantity of oil