Event Notification Report for March 21, 2004
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
03/20/2004 - 03/21/2004
Power Reactor
Event Number: 40602
Facility: SUSQUEHANNA
Region: 1 State: PA
Unit: [1] [2] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: RONALD FRY
HQ OPS Officer: CHAUNCEY GOULD
Region: 1 State: PA
Unit: [1] [2] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: RONALD FRY
HQ OPS Officer: CHAUNCEY GOULD
Notification Date: 03/21/2004
Notification Time: 16:03 [ET]
Event Date: 03/21/2004
Event Time: 12:32 [EST]
Last Update Date: 03/21/2004
Notification Time: 16:03 [ET]
Event Date: 03/21/2004
Event Time: 12:32 [EST]
Last Update Date: 03/21/2004
Emergency Class: NON EMERGENCY
10 CFR Section:
10 CFR Section:
Person (Organization):
HAROLD GRAY (R1)
HAROLD GRAY (R1)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | N | 0 | Refueling | 0 | Refueling |
| 2 | N | Y | 100 | Power Operation | 100 | Power Operation |
THREE INJURIED NONCONTAMINATED CONTRACTORS WERE TRANSPORTED TO THE HOSPITAL.
"On 3/21/04 at 12:32 hrs a bucket truck working at the Unit 1 Cooling Tower came in contact with a 230KV transmission line causing the loss of one off site power supply to the plant. The 500 KV offsite circuit remained energized during the event. A contract employee at the base of the truck was thrown due to the electrical short. A contract employee in the bucket of the truck was able to lower the bucket to the ground. A first aid crew was dispatched to the location and an Ambulance was requested. The Ambulance entered the site at 12:50 and at 13:02 the individuals were transported to the local hospital. Due to the electrical transient in the plant, a contract employee performing grinding activities lost control of the grinder and injured his middle finger. This individual received first aid and was transported to the local hospital by his supervisor. The individual injured in the plant was surveyed by Health Physics prior to leaving the site and no contamination was found. The Local Law Enforcement Agency was notified of the Emergency vehicle being dispatched to the site. The State Emergency Operations Center will be notified of the Emergency vehicle entering the site."
The NRC Resident Inspector and local agencies were notified and the state will be notified.
"On 3/21/04 at 12:32 hrs a bucket truck working at the Unit 1 Cooling Tower came in contact with a 230KV transmission line causing the loss of one off site power supply to the plant. The 500 KV offsite circuit remained energized during the event. A contract employee at the base of the truck was thrown due to the electrical short. A contract employee in the bucket of the truck was able to lower the bucket to the ground. A first aid crew was dispatched to the location and an Ambulance was requested. The Ambulance entered the site at 12:50 and at 13:02 the individuals were transported to the local hospital. Due to the electrical transient in the plant, a contract employee performing grinding activities lost control of the grinder and injured his middle finger. This individual received first aid and was transported to the local hospital by his supervisor. The individual injured in the plant was surveyed by Health Physics prior to leaving the site and no contamination was found. The Local Law Enforcement Agency was notified of the Emergency vehicle being dispatched to the site. The State Emergency Operations Center will be notified of the Emergency vehicle entering the site."
The NRC Resident Inspector and local agencies were notified and the state will be notified.
Power Reactor
Event Number: 40733
Facility: SUSQUEHANNA
Region: 1 State: PA
Unit: [] [2] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: DONALD ROLAND
HQ OPS Officer: HOWIE CROUCH
Region: 1 State: PA
Unit: [] [2] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: DONALD ROLAND
HQ OPS Officer: HOWIE CROUCH
Notification Date: 05/07/2004
Notification Time: 15:42 [ET]
Event Date: 03/21/2004
Event Time: 12:32 [EDT]
Last Update Date: 05/07/2004
Notification Time: 15:42 [ET]
Event Date: 03/21/2004
Event Time: 12:32 [EDT]
Last Update Date: 05/07/2004
Emergency Class: NON EMERGENCY
10 CFR Section:
50.73(a)(1) - INVALID SPECIF SYSTEM ACTUATION
10 CFR Section:
50.73(a)(1) - INVALID SPECIF SYSTEM ACTUATION
Person (Organization):
ANIELLO DELLA GRECA (R1)
ANIELLO DELLA GRECA (R1)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | N | Y | 100 | Power Operation | 100 | Power Operation |
INVALID ACTUATION OF CONTAINMENT ISOLATION SIGNALS IN MORE THAN ONE SYSTEM
The following information was obtained from the licensee via facsimile:
"On 03/21/04 at 12:32 hours [EST], a JLG Manlift working on the Unit 1 Cooling Tower came into contact with a 230 KV transmission line, causing the loss of one of two off-site power supplies to the plant [Startup Transformer T-10 and its associated loads]. The other Startup Transformer [T-20] assumed the extra electrical load, as designed, and restored power to the station. At the time of this event, Unit 1 was in Mode 5 and Unit 2 was in Mode 1. Both Units continued in Modes 5 and 1, respectively.
"As a result of the loss of the T-10 transformer, the following Unit 2 Primary Containment Isolation [Valves][PCIVs] closed on loss of logic power: Containment Atmosphere Control PCIVs HV-25740A, HV-25750A, HV-25776A, HV25780A, HV-25736A, and HV-25742A, HV-25752A, HV-25774A, HV-25782A, HV-25734A. Drywell Sump PCIVs HV-261108 A1 and A2 closed. Reactor Building Chilled Water PCIVs HV-28791 A1 and A2 and HV-28792 A1 and A2 closed. Recirculation Sample PCIV HV-243F019 closed. All isolation signals were successfully reset and the T-10 line was subsequently restored.
"The Unit 2 electrical transient event resulted in general containment isolation signals affecting containment isolation valves in more than one system and is therefore being reported per 10 CFR 50.73(a)(1) and 10 CFR 50.73(a)(2)(iv)(A). A voluntary ENS Phone Notification to the NRC, related to this event, was previously made on 03/21/04, due to notification of the Pennsylvania Emergency Management Agency [PEMA], because an emergency vehicle entered plant property.
"The above listed systems' Division 1 containment isolation valve actuations were completed and functioned successfully on loss of logic power."
The licensee has informed the NRC Resident Inspector of this notification.
The following information was obtained from the licensee via facsimile:
"On 03/21/04 at 12:32 hours [EST], a JLG Manlift working on the Unit 1 Cooling Tower came into contact with a 230 KV transmission line, causing the loss of one of two off-site power supplies to the plant [Startup Transformer T-10 and its associated loads]. The other Startup Transformer [T-20] assumed the extra electrical load, as designed, and restored power to the station. At the time of this event, Unit 1 was in Mode 5 and Unit 2 was in Mode 1. Both Units continued in Modes 5 and 1, respectively.
"As a result of the loss of the T-10 transformer, the following Unit 2 Primary Containment Isolation [Valves][PCIVs] closed on loss of logic power: Containment Atmosphere Control PCIVs HV-25740A, HV-25750A, HV-25776A, HV25780A, HV-25736A, and HV-25742A, HV-25752A, HV-25774A, HV-25782A, HV-25734A. Drywell Sump PCIVs HV-261108 A1 and A2 closed. Reactor Building Chilled Water PCIVs HV-28791 A1 and A2 and HV-28792 A1 and A2 closed. Recirculation Sample PCIV HV-243F019 closed. All isolation signals were successfully reset and the T-10 line was subsequently restored.
"The Unit 2 electrical transient event resulted in general containment isolation signals affecting containment isolation valves in more than one system and is therefore being reported per 10 CFR 50.73(a)(1) and 10 CFR 50.73(a)(2)(iv)(A). A voluntary ENS Phone Notification to the NRC, related to this event, was previously made on 03/21/04, due to notification of the Pennsylvania Emergency Management Agency [PEMA], because an emergency vehicle entered plant property.
"The above listed systems' Division 1 containment isolation valve actuations were completed and functioned successfully on loss of logic power."
The licensee has informed the NRC Resident Inspector of this notification.