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Event Notification Report for January 24, 2000

U.S. Nuclear Regulatory Commission
Operations Center

EVENT REPORTS FOR
01/23/2000 - 01/24/2000

EVENT NUMBERS
366183661936620

Power Reactor
Event Number: 36618
Facility: TURKEY POINT
Region: 2     State: FL
Unit: [] [4] []
RX Type: [3] W-3-LP,[4] W-3-LP
NRC Notified By: DAVE MORRIS
HQ OPS Officer: FANGIE JONES
Notification Date: 01/24/2000
Notification Time: 12:50 [ET]
Event Date: 01/24/2000
Event Time: 11:42 [EST]
Last Update Date: 01/24/2000
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(ii) - RPS ACTUATION
Person (Organization):
KERRY LANDIS (R2)
Power Reactor Unit Info
Unit SCRAM Code RX Crit Initial PWR Initial RX Mode Current PWR Current RX Mode
4 M/R Y 95 Power Operation 0 Hot Standby
Event Text
MANUAL REACTOR TRIP DUE TO FEEDWATER OSCILLATIONS

The licensee had reduced power to 95% to examine the '4A' steam generator feedwater regulating valve due to feedwater oscillations. A preliminary determination of valve internal problems versus control problems was made. The licensee was ready to continue the down power to shutdown to repair the feedwater regulating valve, when a manual trip became necessary due to the feedwater oscillations on '4A' steam generator.

All systems functioned as designed, all rods fully inserted, no secondary safety valves lifted, and the plant is stable in Mode 3. Heat removal is via the atmospheric steam dumps, normal procedure with no tube leaks, and feedwater is via the standby feedwater system. The plant will remain shut down until repairs to the feedwater regulating valve are complete.

The licensee notified the NRC Resident Inspector.


Power Reactor
Event Number: 36619
Facility: MONTICELLO
Region: 3     State: MN
Unit: [1] [] []
RX Type: [1] GE-3
NRC Notified By: STEVE GORTON
HQ OPS Officer: FANGIE JONES
Notification Date: 01/24/2000
Notification Time: 17:59 [ET]
Event Date: 01/24/2000
Event Time: 15:30 [CST]
Last Update Date: 01/24/2000
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(vi) - OFFSITE NOTIFICATION
Person (Organization):
MONTE PHILLIPS (R3)
JAMES CREED (IAT)
Power Reactor Unit Info
Unit SCRAM Code RX Crit Initial PWR Initial RX Mode Current PWR Current RX Mode
1 N N 0 Refueling 0 Refueling
Event Text
COURTESY NOTIFICATION OF LOCAL AND STATE LAW ENFORCEMENT AGENCIES

The licensee notified local and state law enforcement agencies as a courtesy concerning an investigation. This prompted notification of the NRC under 10CFR50.72(b)(2)(vi), "Offsite Notification."

The licensee notified the NRC Resident Inspector.

Refer to the HOO log for additional details.


Power Reactor
Event Number: 36620
Facility: SUMMER
Region: 2     State: SC
Unit: [1] [] []
RX Type: [1] W-3-LP
NRC Notified By: HENRY MANOS
HQ OPS Officer: FANGIE JONES
Notification Date: 01/24/2000
Notification Time: 22:37 [ET]
Event Date: 01/24/2000
Event Time: 22:15 [EST]
Last Update Date: 01/26/2000
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(1)(v) - ENS INOPERABLE
Person (Organization):
KERRY LANDIS (R2)
Power Reactor Unit Info
Unit SCRAM Code RX Crit Initial PWR Initial RX Mode Current PWR Current RX Mode
1 N Y 100 Power Operation 100 Power Operation
Event Text
MORE THAN 25% OF THE OFFSITE WARNING SIRENS LOST DUE TO ICE STORMS

The licensee reported the loss of more than 25% of the offsite warning sirens due to ice storms passing through the local area. The licensee will be contacting the power suppliers of the sirens to take action to recover them.

The licensee notified the NRC Resident Inspector.

* * * UPDATE AT 1315 EST ON 1/26/00 BY BLAIR WILSON TO FANGIE JONES * * *

Greater than 75 % of the emergency sirens (86 %) have been restored to service, this is the last update as the minimum number operable is met. The NRC Resident Inspector has been notified.

The R2DO (Caudle Julian) has been informed.