DI-PSSS-82031以可靠性为中心的维修（RCM）功能故障分析（FFA）提供了适用的系统和子系统的功能描述，包括保护功能、监测和测试设备、冗余以及与其他系统的接口。FFA定义了系统的具体功能和功能故障。

DI-PSSS-82031 Reliability-Centered Maintenance (RCM) Functional Failure Analysis (FFA) provides a functional description of the system and subsystem as applicable, including protective features, monitoring and testing devices, redundancy and interfaces with other systems. The FFA defines the specific functions and functional failures of the system.