Accident Lesson Card · R.E. Ginna 辅助给水泵绕组失效（LER 2021-001-00）

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NUREG Investigation Report No. NUREG-LER-2021-001-00-GIN 2021 Operational Operational

R.E. Ginna 辅助给水泵绕组失效（LER 2021-001-00）

R.E. Ginna Nuclear Power Plant, New York (NRC LER 50-244/2021-001-00)

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

辅助给水泵电机绕组失效→泵不可用，影响事故工况给水能力

2Root Cause

辅助给水泵电机绕组失效

3Reliability Lessons (from investigation root cause)

The 'Root Cause' above is the core lesson of this accident; not split further.

4Associated Failure Mechanisms (Keywords)

辅助给水泵绕组电机失效给水泵轴承

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

电机轴承失效 COMP-C2-FM2冷却风扇失效 cooling_fan_failure再生风机失效 adr_blower_fail驱动电机/柴油机失效 fwp_driver_fail控制盘/启动回路失效 fwp_controller_failBearing failure fwp_bearing_fail出口阀/蝶阀失效 fwp_discharge_valve_fail单螺杆/ Progressive Cavity stator_elastomer_wearBearing failure bearing_failure吸入/排出阀片失效 valve_plate_failure轴承失效(动力端) bearing_failure脉动/振动大 pulsation_vibration轴承失效（磨损/剥落） MECH-BEARING-WEAR密封失效 MECH-SEAL-FAILURE润滑失效 MECH-LUBRICATION-FAILURE冷却水腐蚀 MECH-CWCCavitation MECH-CAVITATION不对中 MECH-MISALIGNMENT转子不平衡 MECH-UNBALANCE结垢/堵塞 MECH-FOULING微生物腐蚀 MECH-MIC冲蚀/冲刷腐蚀 MECH-EROSION机械疲劳 MECH-MECH-FATIGUE均匀/局部减薄（通用减薄） MECH-THINNING联轴器失效 MECH-COUPLING-FAILURE振动诱发疲劳 MECH-VIB-FATIGUE大气腐蚀 MECH-ATMOS

Report No. NUREG-LER-2021-001-00-GIN · Data from NUREG (US NRC) public investigation conclusions, compiled by Reliability AI, for reliability demonstration purposes only. This case is derived from public incident investigation reports for learning purposes only. AIM does not endorse or guarantee its accuracy.