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NUREG Investigation
Report No. NUREG-LER-2010-004-02
2010
Operational Operational
Browns Ferry 1 号机 RHR 泵事件补充根本原因分析报告（LER 2010-004-02）
Browns Ferry Nuclear Plant, Unit 1, Alabama (NRC LER 50-259/2010-004-02)
Related equipment → Centrifugal pump (centrifugal_pump)
0Fatalities
0Injuries
FailureMechanism code ELP
⌗Failure Mode · ISO 14224 Mapping
Damage mechanism (recorded in KB)
FailureELP
ISO functional code (as recorded)
ISO 14224:2016 functional failure code
ELP · External leakage - process
ISO ELP — External leakage - process.
1What Happened
对 RHR 泵 A 电机失效的补充调查/根本原因分析与校正行动跟踪
2Root Cause
RHR 泵电机失效事件的后续根因与纠正措施
3Reliability Lessons (from investigation root cause)
- The 'Root Cause' above is the core lesson of this accident; not split further.
4Associated Failure Mechanisms (Keywords)
RHR泵 补充报告 根本原因分析 校正行动 电机 轴承
About the Failure-Mode Code (click to expand)
The recorded code ELP is an ISO 14224:2016 functional failure code (describes what the equipment failed to do). The damage mechanism (how it failed) is shown in the Mapping block above. The two are distinct dimensions in ISO 14224.
5Evidence Source (transparent)
Authority：U.S. Nuclear Regulatory Commission (NRC) — Licensee Event Report (LER)
Official Report：www.nrc.gov ↗
Data Verification：verified_url_nrc_pdf_2026-08-07
↗Related Failure Modes · Traceability
This accident is not yet linked to a specific FM traceability card.