Event Notification Report for February 22, 2024
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
02/21/2024 - 02/22/2024
Power Reactor
Event Number: 56989
Facility: Cooper
Region: 4 State: NE
Unit: [1] [] []
RX Type: [1] GE-4
NRC Notified By: Aric Harris
HQ OPS Officer: Karen Cotton-Gross
Region: 4 State: NE
Unit: [1] [] []
RX Type: [1] GE-4
NRC Notified By: Aric Harris
HQ OPS Officer: Karen Cotton-Gross
Notification Date: 02/22/2024
Notification Time: 20:02 [ET]
Event Date: 02/22/2024
Event Time: 11:03 [CST]
Last Update Date: 02/25/2024
Notification Time: 20:02 [ET]
Event Date: 02/22/2024
Event Time: 11:03 [CST]
Last Update Date: 02/25/2024
Emergency Class: Non Emergency
10 CFR Section:
50.72(b)(3)(v)(D) - Accident Mitigation
10 CFR Section:
50.72(b)(3)(v)(D) - Accident Mitigation
Person (Organization):
Drake, James (R4DO)
Drake, James (R4DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
EN Revision Imported Date: 2/26/2024
EN Revision Text: HIGH PRESSURE COOLANT IINJECTION DECLARED INOPERABLE
The following information was provided by the licensee via email:
"At 1103 CST on February 22, 2024, a potential through-wall steam leak was identified on the high pressure coolant injection (HPCI) steam supply 1-inch drain line. As a result, HPCI was declared inoperable. Since HPCI is a single-train system, this is a condition that could have prevented the fulfillment of a safety function; therefore, this condition is being reported as an eight-hour, non-emergency notification per 10 CFR 50.72(b)(3)(v)(D). Reactor core isolation cooling (RCIC) and low pressure emergency core cooling systems (ECCS) remain operable.
"Additional investigation is in progress.
"There was no impact on the health and safety of the public or plant personnel. The NRC Resident Inspector has been notified."
EN Revision Text: HIGH PRESSURE COOLANT IINJECTION DECLARED INOPERABLE
The following information was provided by the licensee via email:
"At 1103 CST on February 22, 2024, a potential through-wall steam leak was identified on the high pressure coolant injection (HPCI) steam supply 1-inch drain line. As a result, HPCI was declared inoperable. Since HPCI is a single-train system, this is a condition that could have prevented the fulfillment of a safety function; therefore, this condition is being reported as an eight-hour, non-emergency notification per 10 CFR 50.72(b)(3)(v)(D). Reactor core isolation cooling (RCIC) and low pressure emergency core cooling systems (ECCS) remain operable.
"Additional investigation is in progress.
"There was no impact on the health and safety of the public or plant personnel. The NRC Resident Inspector has been notified."
Part 21
Event Number: 57072
Rep Org: Engine Systems, Inc
Licensee: Fitzpatrick NPS
Region: 1
City: Oswego State: NY
County:
License #:
Agreement: Y
Docket:
NRC Notified By: Dan Roberts
HQ OPS Officer: Ernest West
Licensee: Fitzpatrick NPS
Region: 1
City: Oswego State: NY
County:
License #:
Agreement: Y
Docket:
NRC Notified By: Dan Roberts
HQ OPS Officer: Ernest West
Notification Date: 04/12/2024
Notification Time: 11:49 [ET]
Event Date: 02/22/2024
Event Time: 00:00 [EDT]
Last Update Date: 04/12/2024
Notification Time: 11:49 [ET]
Event Date: 02/22/2024
Event Time: 00:00 [EDT]
Last Update Date: 04/12/2024
Emergency Class: Non Emergency
10 CFR Section:
21.21(d)(3)(i) - Defects And Noncompliance
10 CFR Section:
21.21(d)(3)(i) - Defects And Noncompliance
Person (Organization):
Defrancisco, Anne (R1DO)
Part 21/50.55 Reactors, - (EMAIL)
Defrancisco, Anne (R1DO)
Part 21/50.55 Reactors, - (EMAIL)
EN Revision Imported Date: 4/15/2024
EN Revision Text: PART 21 - LEAKING CYLINDER LINER IN EMERGENCY DIESEL GENERATOR
The following is a summary of the information provided by Engine Systems Inc. (ESI) via facsimile:
An EMD (Brand Name: Electro-Motive Diesel) cylinder liner developed a jacket water leak following installation on an emergency diesel generator set at the James A. Fitzpatrick Nuclear Power Plant. The leak occurred at a brazed joint and was detected after post-installation engine testing. Had the leak gone undetected, jacket water may have accumulated in the combustion chamber, airbox, and/or lubricating oil which could have eventually led to failure of the emergency diesel generator set.
ESI was the supplier of the EMD cylinder liner (part number: 9318833, serial number: 20D6294). The EMD cylinder was a component of a Blade Power Pack Assembly, part number: 40124898, serial number: 20L0603
Corrective Actions:
ESI will revise the dedication package to include additional verifications to prevent reoccurrence. The revision will be implemented within 30 days. Fitzpatrick returned the power assembly to ESI for replacement and no further action is required from Fitzpatrick.
Affected Plants:
Fitzpatrick. No other sites known to be affected.
The name and address of the individuals reporting this information is:
John Kriesel
Engineering Manager
Engine Systems, Inc.;
175 Freight Rd.
Rocky Mount, NC 27804
Dan Roberts
Quality Manager
Engine Systems, Inc.;
175 Freight Rd.
Rocky Mount, NC 27804
EN Revision Text: PART 21 - LEAKING CYLINDER LINER IN EMERGENCY DIESEL GENERATOR
The following is a summary of the information provided by Engine Systems Inc. (ESI) via facsimile:
An EMD (Brand Name: Electro-Motive Diesel) cylinder liner developed a jacket water leak following installation on an emergency diesel generator set at the James A. Fitzpatrick Nuclear Power Plant. The leak occurred at a brazed joint and was detected after post-installation engine testing. Had the leak gone undetected, jacket water may have accumulated in the combustion chamber, airbox, and/or lubricating oil which could have eventually led to failure of the emergency diesel generator set.
ESI was the supplier of the EMD cylinder liner (part number: 9318833, serial number: 20D6294). The EMD cylinder was a component of a Blade Power Pack Assembly, part number: 40124898, serial number: 20L0603
Corrective Actions:
ESI will revise the dedication package to include additional verifications to prevent reoccurrence. The revision will be implemented within 30 days. Fitzpatrick returned the power assembly to ESI for replacement and no further action is required from Fitzpatrick.
Affected Plants:
Fitzpatrick. No other sites known to be affected.
The name and address of the individuals reporting this information is:
John Kriesel
Engineering Manager
Engine Systems, Inc.;
175 Freight Rd.
Rocky Mount, NC 27804
Dan Roberts
Quality Manager
Engine Systems, Inc.;
175 Freight Rd.
Rocky Mount, NC 27804
Part 21
Event Number: 57117
Rep Org: Engine Systems, Inc.
Licensee: Fitzpatrick
Region: 1
City: Rocky Mount State: NC
County:
License #:
Agreement: Y
Docket:
NRC Notified By: Dan Roberts
HQ OPS Officer: Thomas Herrity
Licensee: Fitzpatrick
Region: 1
City: Rocky Mount State: NC
County:
License #:
Agreement: Y
Docket:
NRC Notified By: Dan Roberts
HQ OPS Officer: Thomas Herrity
Notification Date: 05/09/2024
Notification Time: 14:42 [ET]
Event Date: 02/22/2024
Event Time: 00:00 [EDT]
Last Update Date: 05/09/2024
Notification Time: 14:42 [ET]
Event Date: 02/22/2024
Event Time: 00:00 [EDT]
Last Update Date: 05/09/2024
Emergency Class: Non Emergency
10 CFR Section:
21.21(d)(3)(i) - Defects And Noncompliance
10 CFR Section:
21.21(d)(3)(i) - Defects And Noncompliance
Person (Organization):
Young, Matt (R1DO)
Part 21/50.55 Reactors, - (EMAIL)
Young, Matt (R1DO)
Part 21/50.55 Reactors, - (EMAIL)
PART 21 - EMERGENCY DIESEL GENERATOR CYLINDER LINER LEAK
The following is a synopsis of information provided by Engine Systems, Inc. (ESI) via fax and email:
On February 22, 2024, an EMD brand cylinder liner developed a jacket water leak following installation on an emergency diesel generator set. The leak occurred at a brazed joint and was detected after post-installation engine testing. Had the leak gone undetected, jacket water may have accumulated in the combustion chamber or airbox and potentially contaminated the engine's lubricating oil. Jacket water intrusion into any of these areas is undesirable and could lead to failure of the diesel engine and therefore failure of the emergency diesel generator set.
The extent of condition is a single cylinder liner, P/N 9318833, S/N 20D6294 used in the power assembly shown below.
Customer: Constellation - Fitzpatrick
Customer PO: 703, release 13498
ESI Sales Order: 3021545
Part Number Ordered: 40124898 (Blade Power Pack)
Serial Number: 20L0603
ESI C-of-C Date: April 1, 2021
The corrective action:
For Fitzpatrick: No action required; the power assembly has been returned to ESI for replacement.
For ESI: ESI will revise the dedication package to include additional verifications to prevent reoccurrence. The revision will be implemented within 30 days.
Name and contact information:
Dan Roberts, Quality Manager
Engine Systems Inc.
175 Freight Rd.
Rocky Mount, NC 27804
John Kriesel, Engineering Manager
Engine Systems Inc.
175 Freight Rd.
Rocky Mount, NC 27804
The following is a synopsis of information provided by Engine Systems, Inc. (ESI) via fax and email:
On February 22, 2024, an EMD brand cylinder liner developed a jacket water leak following installation on an emergency diesel generator set. The leak occurred at a brazed joint and was detected after post-installation engine testing. Had the leak gone undetected, jacket water may have accumulated in the combustion chamber or airbox and potentially contaminated the engine's lubricating oil. Jacket water intrusion into any of these areas is undesirable and could lead to failure of the diesel engine and therefore failure of the emergency diesel generator set.
The extent of condition is a single cylinder liner, P/N 9318833, S/N 20D6294 used in the power assembly shown below.
Customer: Constellation - Fitzpatrick
Customer PO: 703, release 13498
ESI Sales Order: 3021545
Part Number Ordered: 40124898 (Blade Power Pack)
Serial Number: 20L0603
ESI C-of-C Date: April 1, 2021
The corrective action:
For Fitzpatrick: No action required; the power assembly has been returned to ESI for replacement.
For ESI: ESI will revise the dedication package to include additional verifications to prevent reoccurrence. The revision will be implemented within 30 days.
Name and contact information:
Dan Roberts, Quality Manager
Engine Systems Inc.
175 Freight Rd.
Rocky Mount, NC 27804
John Kriesel, Engineering Manager
Engine Systems Inc.
175 Freight Rd.
Rocky Mount, NC 27804