飞机低无线电高度表系统故障分析

摘要

介绍波音737NG飞机低无线电高度表（LRRA）系统原理,分析故障现象和原因,结合实践经验,提出减少LRRA系统故障发生率的措施。%The system principle of low range radio altimeter （LRRA） system of Boeing 737NG is introduced. The phenomenon and reason of malfunction is analyzed. Combined with practical experience, the measurement of reducing LRRA system malfunction is introduced.