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At 1313 hours on November 17, 2021, with U … At 1313 hours on November 17, 2021, with Unit 2 in Mode 1 at 100 percent power, the reactor was manually tripped due to a loss of the 21B Main Feedwater Pump (due to low suction pressure). The Auxiliary Feedwater System automatically started as designed in response to the full power reactor trip. Additionally, the Main Steam Isolation Valves were manually closed to prevent excessive reactor coolant system cooldown. The trip was not complex, with all systems responding normally post-trip. There was no equipment inoperable prior to the event that contributed to the reactor trip or adversely impacted plant response. Operations responded and stabilized the plant. Decay heat is being removed by discharging steam to the atmosphere using the Atmospheric Dump Valves.</br>Beaver Valley Power Station Unit 1 is unaffected and remains at 100 percent power in Mode 1.</br>Due to the Reactor Protection System actuation while critical, this event is being reported as a four-hour, non-emergency notification per 10 CFR 50.72(b)(2)(iv)(B). Additionally, the automatic actuation of the Auxiliary Feedwater System is being reported as an eight-hour, non-emergency Specific System Actuation per 10 CFR 50.72(b)(3)(vi)(A).</br>There was no impact on the health and safety of the public or plant personnel. The NRC Resident has been notified.nnel. The NRC Resident has been notified. +
18:13:00, 17 November 2021 +
55,586 +
16:24:00, 17 November 2021 +
18:13:00, 17 November 2021 +
At 1313 hours on November 17, 2021, with U … At 1313 hours on November 17, 2021, with Unit 2 in Mode 1 at 100 percent power, the reactor was manually tripped due to a loss of the 21B Main Feedwater Pump (due to low suction pressure). The Auxiliary Feedwater System automatically started as designed in response to the full power reactor trip. Additionally, the Main Steam Isolation Valves were manually closed to prevent excessive reactor coolant system cooldown. The trip was not complex, with all systems responding normally post-trip. There was no equipment inoperable prior to the event that contributed to the reactor trip or adversely impacted plant response. Operations responded and stabilized the plant. Decay heat is being removed by discharging steam to the atmosphere using the Atmospheric Dump Valves.</br>Beaver Valley Power Station Unit 1 is unaffected and remains at 100 percent power in Mode 1.</br>Due to the Reactor Protection System actuation while critical, this event is being reported as a four-hour, non-emergency notification per 10 CFR 50.72(b)(2)(iv)(B). Additionally, the automatic actuation of the Auxiliary Feedwater System is being reported as an eight-hour, non-emergency Specific System Actuation per 10 CFR 50.72(b)(3)(vi)(A).</br>There was no impact on the health and safety of the public or plant personnel. The NRC Resident has been notified.nnel. The NRC Resident has been notified. +
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