The Atmospheric Observing System Operations and Monitoring (ASOM) is an operational application system for meteorological technology and equipment maintenance. This system realizes operational status monitoring, data quality monitoring, maintenance information management, and instrument logistics support management, assessment for operations and monitoring, monitoring information distribution and metadata management, etc. More than 4000 reported breakdowns between July 2008 and June 2014 are analyzed based the onsite maintenance reports from ASOM, and some recommendations to standardize the breakdown reports of newgeneration weather radar in China are given, aiming at the restoration of maintenance processes, the improvement of debug technology, and the enhancement of site maintenance techniques afterwards.