Event Notification Report for April 15, 2001
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
04/14/2001 - 04/15/2001
EVENT NUMBERS
37920
!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
Power Reactor
Event Number: 37920
Facility: MONTICELLO
Region: 3 State: MN
Unit: [1] [] []
RX Type: [1] GE-3
NRC Notified By: DUSTIN WRIGHT
HQ OPS Officer: DOUG WEAVER
Region: 3 State: MN
Unit: [1] [] []
RX Type: [1] GE-3
NRC Notified By: DUSTIN WRIGHT
HQ OPS Officer: DOUG WEAVER
Notification Date: 04/15/2001
Notification Time: 17:15 [ET]
Event Date: 04/15/2001
Event Time: 11:50 [CDT]
Last Update Date: 06/08/2001
Notification Time: 17:15 [ET]
Event Date: 04/15/2001
Event Time: 11:50 [CDT]
Last Update Date: 06/08/2001
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(v)(B) - POT RHR INOP
10 CFR Section:
50.72(b)(3)(v)(B) - POT RHR INOP
Person (Organization):
MICHAEL PARKER (R3)
MICHAEL PARKER (R3)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
BOTH LOW PRESSURE COOLANT INJECTION (LPCI) PATHS TEMPORARILY INOPERABLE
Procedure inadequacies for venting RHR System using Ops Manual B.08.01.03-05 resulted in Tech Spec LCO(s) 3.5.A declaring both LPCI Injection Paths inoperable (72 Hour LCO) and Tech Spec 3.5.C for one Division of Containment Spray and Cooling inoperable (7 Day LCO) NOT entered. Contrary to Ops Procedure #2145 RHR System Discharge Venting these LCO(s) should be entered when RHR is vented. Notifications are being made because a vent valve was opened which made both LPCI Injection Paths inoperable. This condition at the time of discovery could have prevented the fulfillment of the safety function or system that is needed for Residual Heat Capacity. The vent valve is closed and verified closed. The RHR System is Operable at this time.
The licensee notified the NRC resident inspector.
* * * UPDATE 1645EDT ON 6/8/01 FROM DUANE SCHMIDT TO S. SANDIN * * *
The licensee is retracting this report based on the following:
"On April 15, 2001, we reported that the opening of a vent valve made both LPCI Injection Paths Inoperable causing the loss of the LPCI safety function. This operation was a planned evolution in accordance with approved procedures, as it was prescribed by the Operations Manual. As such, there was not a loss of the LPCI safety function and thus this is not reportable per the guidance in NUREG 1022, page 56."
The licensee informed the NRC resident inspector. Notified R3DO(Clayton).
Procedure inadequacies for venting RHR System using Ops Manual B.08.01.03-05 resulted in Tech Spec LCO(s) 3.5.A declaring both LPCI Injection Paths inoperable (72 Hour LCO) and Tech Spec 3.5.C for one Division of Containment Spray and Cooling inoperable (7 Day LCO) NOT entered. Contrary to Ops Procedure #2145 RHR System Discharge Venting these LCO(s) should be entered when RHR is vented. Notifications are being made because a vent valve was opened which made both LPCI Injection Paths inoperable. This condition at the time of discovery could have prevented the fulfillment of the safety function or system that is needed for Residual Heat Capacity. The vent valve is closed and verified closed. The RHR System is Operable at this time.
The licensee notified the NRC resident inspector.
* * * UPDATE 1645EDT ON 6/8/01 FROM DUANE SCHMIDT TO S. SANDIN * * *
The licensee is retracting this report based on the following:
"On April 15, 2001, we reported that the opening of a vent valve made both LPCI Injection Paths Inoperable causing the loss of the LPCI safety function. This operation was a planned evolution in accordance with approved procedures, as it was prescribed by the Operations Manual. As such, there was not a loss of the LPCI safety function and thus this is not reportable per the guidance in NUREG 1022, page 56."
The licensee informed the NRC resident inspector. Notified R3DO(Clayton).