波音737-800空调制冷故障分析及健康监测

空调系统为机组、旅客和设备提供飞机内部环境系统，空调性能好坏直接影响旅客乘坐舒适性及设备正常工作。高温时空调制冷需求高，而空调故障频发，常常影响飞机安全运行。随着机队规模不断增加，如何高效管控空调系统运行状况，是摆在航司面前的重要技术课题。以波音737-800为研究对象，利用飞机维护手册(aircraft maintenance manual,简称AMM)和故障隔离手册(fault isolation manual,简称FIM),介绍空调制冷原理，深入剖析影响制冷性能的典型故障，并给出管控措施。介绍了空调健康监测方案和实施途径，通过机队应用实践，该方案能有效监控空调制冷性能，大大提高维护效率，保障航班运行，提升自主创新能力，为企业赢得声誉。

Failure analysis and health monitoring of Boeing 737-800 air conditioning cooling

The air conditioning system provides the internal environment system of the aircraft for the crew, passengers and equipment, and the performance of air conditioning directly affects the passengers comfort and normal running of the equipment. During the high temperature season, the cooling demand for air conditioning is high, and the frequent failure of air conditioning often affects the safe running of aircraft. With the increasing size of the fleet, how to efficiently manage and control the running of the air conditioning system is an important technical issue for the airline company. Taking the Boeing 737-800 as the research object, this paper uses the aircraft maintenance manual (AMM) and the fault isolation manual ( FIM) , introduces the principle of air conditioning cooling, deeply analyzes the typical faults affecting the cooling performance, and provides effective measures. The air conditioning health monitoring scheme and its implementation path were introduced. Through the application practice of the fleet, this scheme can effectively monitor the cooling performance of air conditioner, greatly improve the maintenance efficiency, ensure the flight operation, enhance the independent innovation ability, and win the reputation of the enterprise.