Event Notification Report for August 22, 2019
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
08/21/2019 - 08/22/2019
Part 21
Event Number: 54236
Rep Org: ENGINE SYSTEMS, INC
Licensee: ENGINE SYSTEMS, INC
Region: 1
City: ROCKY MOUNT State: NC
County:
License #:
Agreement: Y
Docket:
NRC Notified By: DAN ROBERTS
HQ OPS Officer: CATY NOLAN
Licensee: ENGINE SYSTEMS, INC
Region: 1
City: ROCKY MOUNT State: NC
County:
License #:
Agreement: Y
Docket:
NRC Notified By: DAN ROBERTS
HQ OPS Officer: CATY NOLAN
Notification Date: 08/22/2019
Notification Time: 16:41 [ET]
Event Date: 08/22/2019
Event Time: 00:00 [EDT]
Last Update Date: 08/22/2019
Notification Time: 16:41 [ET]
Event Date: 08/22/2019
Event Time: 00:00 [EDT]
Last Update Date: 08/22/2019
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):
DAVE WERKHEISER (R1DO)
- PART 21/50.55 REACTORS (EMAIL)
DAVE WERKHEISER (R1DO)
- PART 21/50.55 REACTORS (EMAIL)
PART 21 - CRACKED SPRAY TIP ON EMD FUEL INJECTOR
The following is a summary of information received from Engine Systems, INC (ESI) via facsimile:
The basic component, a fuel injector, P/N 5229250, S/N R2200, was sent to ESI for failure analysis and the spray tip was found to have a through wall crack. Inspections determined the fuel feed holes in the body of the spray tip were incorrectly drilled, resulting in one of the holes not properly penetrating the reservoir. A cracked spray tip would inhibit proper combustion of fuel within the corresponding power cylinder which could affect the carrying capability of the diesel engine. This could impact the operability of the diesel engine, thereby, preventing the emergency diesel generator set from performing its safety-related function.
It is the belief of ESI that the extent of condition is limited to the single spray tip. Based on the age of the tip (repair kit purchase order (PO) date is 2001), if other tips contained the same discrepancy, it is highly likely they would have been detected or replaced.
There were 20 tips in the same batch as the failed spray tip. The end user of the PO is Nine Mile Point. ESI suggests that the customer perform an inspection on the remaining 19 injectors. ESI has discontinued the affected injector repair kit.
The following is a summary of information received from Engine Systems, INC (ESI) via facsimile:
The basic component, a fuel injector, P/N 5229250, S/N R2200, was sent to ESI for failure analysis and the spray tip was found to have a through wall crack. Inspections determined the fuel feed holes in the body of the spray tip were incorrectly drilled, resulting in one of the holes not properly penetrating the reservoir. A cracked spray tip would inhibit proper combustion of fuel within the corresponding power cylinder which could affect the carrying capability of the diesel engine. This could impact the operability of the diesel engine, thereby, preventing the emergency diesel generator set from performing its safety-related function.
It is the belief of ESI that the extent of condition is limited to the single spray tip. Based on the age of the tip (repair kit purchase order (PO) date is 2001), if other tips contained the same discrepancy, it is highly likely they would have been detected or replaced.
There were 20 tips in the same batch as the failed spray tip. The end user of the PO is Nine Mile Point. ESI suggests that the customer perform an inspection on the remaining 19 injectors. ESI has discontinued the affected injector repair kit.
Power Reactor
Event Number: 54237
Facility: HATCH
Region: 2 State: GA
Unit: [] [2] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: RUSSELL LEWIS
HQ OPS Officer: OSSY FONT
Region: 2 State: GA
Unit: [] [2] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: RUSSELL LEWIS
HQ OPS Officer: OSSY FONT
Notification Date: 08/23/2019
Notification Time: 00:33 [ET]
Event Date: 08/22/2019
Event Time: 22:34 [EDT]
Last Update Date: 08/23/2019
Notification Time: 00:33 [ET]
Event Date: 08/22/2019
Event Time: 22:34 [EDT]
Last Update Date: 08/23/2019
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):
RANDY MUSSER (R2DO)
RANDY MUSSER (R2DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | N | Y | 100 | Power Operation | 100 | Power Operation |
HIGH PRESSURE COOLANT INJECTION (HPCI) SYSTEM INOPERABLE
"At 2234 [EDT], on 08/22/2019, while Unit [2] was at approximately 100 percent power in MODE 1, it was discovered that Unit 2 HPCI was INOPERABLE. HPCI does not have a redundant system; therefore, this condition is being reported as an eight-hour, non-emergency notification per 10 CFR 50.72(b)(3)(v).
"There was no impact on the health and safety of the public or plant personnel.
"The NRC Resident Inspector has been notified."
Initial evaluation is that it is a power supply issue. The system had no indications, followed by smoke from behind the circuitry, and then indications returning. This is associated with a 14-day Limiting Condition for Operation.
"At 2234 [EDT], on 08/22/2019, while Unit [2] was at approximately 100 percent power in MODE 1, it was discovered that Unit 2 HPCI was INOPERABLE. HPCI does not have a redundant system; therefore, this condition is being reported as an eight-hour, non-emergency notification per 10 CFR 50.72(b)(3)(v).
"There was no impact on the health and safety of the public or plant personnel.
"The NRC Resident Inspector has been notified."
Initial evaluation is that it is a power supply issue. The system had no indications, followed by smoke from behind the circuitry, and then indications returning. This is associated with a 14-day Limiting Condition for Operation.