3074. You must use a respirator if the fuel-gas concentration in the work area is 5% more than the lower explosive limit

289. The purpose of the CSD is to convert the variable speed of the engine to a constant speed for the driven of the generator to produce AC power at constant frequency

288. The document points out that the FAA should be contacted prior to any alterations on airplane to insure that airworthiness of the airplane is not violated

287. 巡航性能显示的格式由飞机制造商决定。

286. Doorstop at forward external fuselage servicing door is protruding

285. 更换损坏的部件。

284. 它包括用于检查损坏的飞机或正在进行大修的飞机的基本索具尺寸。

283. Display a warning notice on the panel prohibiting the operation of the controls

282. Inflate the tire with nitrogen to the specified pressure

281. 空气涡轮机启动器的故障会触发发动机过热和火警信号

280. If you get the solution in your eye, get medical aid immediately