Event Notification Report for May 20, 1999
U.S. Nuclear Regulatory Commission
Operations Center
Event Reports For
05/19/1999 - 05/20/1999
** EVENT NUMBERS **
35325 35726 35734 35737 35738 35739 35740 35741 35742 35743
!!!!!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!!!!
+------------------------------------------------------------------------------+
|Hospital |Event Number: 35325 |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| REP ORG: DETROIT MACOMB HOSPITAL |NOTIFICATION DATE: 01/29/1999|
|LICENSEE: DETROIT MACOMB HOSPITAL |NOTIFICATION TIME: 11:28[EST]|
| CITY: DETROIT REGION: 3 |EVENT DATE: 01/28/1999|
| COUNTY: STATE: MI |EVENT TIME: 16:10[EST]|
|LICENSE#: 21-01190-05 AGREEMENT: N |LAST UPDATE DATE: 05/19/1999|
| DOCKET: |+----------------------------+
| |PERSON ORGANIZATION |
| |TONY VEGEL R3 |
| |DONALD COOL NMSS |
+------------------------------------------------+ |
| NRC NOTIFIED BY: ARTHUR EWALD | |
| HQ OPS OFFICER: BOB STRANSKY | |
+------------------------------------------------+ |
|EMERGENCY CLASS: N/A | |
|10 CFR SECTION: | |
|LADM 35.33(a) MED MISADMINISTRATION | |
| | |
| | |
| | |
| | |
+------------------------------------------------------------------------------+
EVENT TEXT
+------------------------------------------------------------------------------+
| MEDICAL MISADMINISTRATION DUE TO PATIENT INTERVENTION |
| |
| During brachytherapy treatment of a patient's endobronchial area, the |
| patient dislodged the catheter approximately 25 cm, causing the treatment |
| site to receive only 3.8% of the prescribed dose. Additionally, the |
| patient's nasal area received approximately 13 rads (13 cGy) due to the |
| displacement. The licensee estimates that the catheter was dislodged for |
| approximately 10 minutes before being discovered. |
| |
| The patient's referring physician has been informed of this event. |
| |
| * * * RETRACTED AT 1356 EDT ON 5/19/99 BY ART EWALD TO STEVE SANDIN * * * |
| |
| The licensee is retracting this report based on review and consultation with |
| the NRC. Notified R3DO(Clayton) and NMSS(Camper). |
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+------------------------------------------------------------------------------+
|Other Nuclear Material |Event Number: 35726 |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| REP ORG: U.S. ARMY |NOTIFICATION DATE: 05/17/1999|
|LICENSEE: U.S. ARMY |NOTIFICATION TIME: 12:03[EDT]|
| CITY: ROCK ISLAND REGION: 3 |EVENT DATE: 05/16/1999|
| COUNTY: STATE: IL |EVENT TIME: [CDT]|
|LICENSE#: 12-00722-13 AGREEMENT: Y |LAST UPDATE DATE: 05/19/1999|
| DOCKET: |+----------------------------+
| |PERSON ORGANIZATION |
| |BRENT CLAYTON R3 |
| |PETER ESELGROTH R1 |
+------------------------------------------------+JOE HOLONICH NMSS |
| NRC NOTIFIED BY: JEFF HAVENER |FEMA, DOE, USDA, HHS FAX |
| HQ OPS OFFICER: FANGIE JONES |EPA, DOT (VIA NRC) FAX |
+------------------------------------------------+ |
|EMERGENCY CLASS: N/A | |
|10 CFR SECTION: | |
|BAB1 20.2201(a)(1)(i) LOST/STOLEN LNM>1000X | |
| | |
| | |
| | |
| | |
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EVENT TEXT
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| LOST OR STOLEN 3-CURIE TRITIUM SOURCE FROM AN M140 ALIGNMENT DEVICE |
| |
| Sometime on 5/16/99 near Watervliet Arsenal (about 35 miles from Albany, NY) |
| at a contractor's facility (Wright Malta Corporation at Wright Malta |
| Station), a break-in occurred. In the facility was a howitzer with an M1A1 |
| collimator (10 curies tritium) and an M140 alignment device (3 curies |
| tritium). The two devices were taken but were recovered on site when the |
| thieves were interrupted on the way out and dropped them. However, the |
| source was missing from the M140 alignment device, and it is unknown whether |
| the source was missing previously or removed and taken by the thieves. The |
| local police are following up on the break-in and theft. The Watervliet |
| Arsenal contacted the State of New York, who in turn notified NRC Region 1. |
| |
| (Call the NRC operations officer for additional information.) |
| |
| * * * UPDATE 1730EDT ON 5/19/99 FROM JEFF HAVENNER TO S.SANDIN * * * |
| |
| Additional information received by the licensee on 5/19/99 indicates that an |
| M58 and an M59 aiming post light may also be missing. These are 5 and 4 |
| Curies of tritium for a total of 9 Curies. Notified R1DO(Eselgroth), |
| R3DO(Clayton), NMSS(Haughney) and FEMA, DOE, USDA, HHS, EPA, and DOT (via |
| NRC) by fax. |
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!!!!!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!!!!
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|Power Reactor |Event Number: 35734 |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: SEABROOK REGION: 1 |NOTIFICATION DATE: 05/18/1999|
| UNIT: [1] [] [] STATE: NH |NOTIFICATION TIME: 15:52[EDT]|
| RXTYPE: [1] W-4-LP |EVENT DATE: 05/18/1999|
+------------------------------------------------+EVENT TIME: 15:00[EDT]|
| NRC NOTIFIED BY: RON STRICKLAND |LAST UPDATE DATE: 05/19/1999|
| HQ OPS OFFICER: STEVE SANDIN +-----------------------------+
+------------------------------------------------+PERSON ORGANIZATION |
|EMERGENCY CLASS: N/A |PETER ESELGROTH R1 |
|10 CFR SECTION: | |
|DDDD 73.71 UNSPECIFIED PARAGRAPH | |
| | |
| | |
| | |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|1 N Y 85 Power Operation |85 Power Operation |
| | |
| | |
+------------------------------------------------------------------------------+
EVENT TEXT
+------------------------------------------------------------------------------+
| 1-HOUR SECURITY REPORT |
| |
| SAFEGUARDS SYSTEM DEGRADATION RELATED TO DETECTION/MONITORING/ALARM OF VITAL |
| AREA ACCESS DOORS. IMMEDIATE COMPENSATORY ACTIONS TAKEN UPON DISCOVERY. |
| THE LICENSEE WILL INFORM THE NRC RESIDENT INSPECTOR. CONTACT THE |
| HEADQUARTERS OPERATIONS CENTER FOR ADDITIONAL DETAILS. |
| |
| * * * RETRACTED AT 1300 EDT ON 5/19/99 BY MIKE KILEY TO FANGIE JONES * * * |
| |
| THIS NOTIFICATION WAS RETRACTED AS IT WAS ONLY REQUIRED TO BE LOGGED DUE TO |
| COMPENSATORY MEASURES TAKEN UPON DISCOVERY ON THE DEGRADATION. THE LICENSEE |
| NOTIFIED THE NRC RESIDENT INSPECTOR AND THE HEADQUARTERS OPERATIONS OFFICER |
| NOTIFIED THE R1DO (PETER ESELGROTH) |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
|Power Reactor |Event Number: 35737 |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: POINT BEACH REGION: 3 |NOTIFICATION DATE: 05/19/1999|
| UNIT: [1] [2] [] STATE: WI |NOTIFICATION TIME: 10:19[EDT]|
| RXTYPE: [1] W-2-LP,[2] W-2-LP |EVENT DATE: 05/19/1999|
+------------------------------------------------+EVENT TIME: 08:35[CDT]|
| NRC NOTIFIED BY: ADAMS |LAST UPDATE DATE: 05/19/1999|
| HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+
+------------------------------------------------+PERSON ORGANIZATION |
|EMERGENCY CLASS: N/A |BRENT CLAYTON R3 |
|10 CFR SECTION: | |
|AENS 50.72(b)(1)(v) ENS INOPERABLE | |
| | |
| | |
| | |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|1 N N 0 Hot Shutdown |0 Hot Shutdown |
|2 N Y 55 Power Operation |55 Power Operation |
| | |
+------------------------------------------------------------------------------+
EVENT TEXT
+------------------------------------------------------------------------------+
| BOTH COMMERCIAL AND FTS PHONES OUT OF SERVICE. |
| |
| THE PHONE SYSTEM FAILED WHEN AN INADVERTENT UNDERGROUND CABLE WAS CUT DURING |
| ROAD CONSTRUCTION ON A NEARBY ROAD, AMERITECH IS WORKING ON THE CABLE |
| REPAIR AND IT SHOULD BE FIXED BY 1130 EDT. |
| |
| THE RESIDENT INSPECTOR WAS NOTIFIED. |
| |
| * * * UPDATE AT 1224 EDT ON 5/19/99 BY PHILLIP SHORT TO FANGIE JONES * * * |
| |
| ALL PHONE LINES HAVE BEEN RESTORED TO SERVICE. THE NRC RESIDENT INSPECTOR |
| WAS NOTIFIED BY THE LICENSEE AND THE R3DO (BRENT CLAYTON) WAS NOTIFIED BY |
| THE HEADQUARTERS OPERATION OFFICER. |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
|Power Reactor |Event Number: 35738 |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: WOLF CREEK REGION: 4 |NOTIFICATION DATE: 05/19/1999|
| UNIT: [1] [] [] STATE: KS |NOTIFICATION TIME: 12:12[EDT]|
| RXTYPE: [1] W-4-LP |EVENT DATE: 05/19/1999|
+------------------------------------------------+EVENT TIME: 11:00[CDT]|
| NRC NOTIFIED BY: DAVID ERBE |LAST UPDATE DATE: 05/19/1999|
| HQ OPS OFFICER: STEVE SANDIN +-----------------------------+
+------------------------------------------------+PERSON ORGANIZATION |
|EMERGENCY CLASS: N/A |GARY SANBORN R4 |
|10 CFR SECTION: | |
|DDDD 73.71 UNSPECIFIED PARAGRAPH | |
| | |
| | |
| | |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|1 N Y 100 Power Operation |100 Power Operation |
| | |
| | |
+------------------------------------------------------------------------------+
EVENT TEXT
+------------------------------------------------------------------------------+
| PHYSICAL SECURITY REPORT |
| |
| Unescorted access granted inappropriately, immediate compensatory measures |
| taken upon discovery. The licensee notified the NRC Resident Inspector. |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
|Power Reactor |Event Number: 35739 |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: MCGUIRE REGION: 2 |NOTIFICATION DATE: 05/19/1999|
| UNIT: [1] [2] [] STATE: NC |NOTIFICATION TIME: 13:38[EDT]|
| RXTYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 05/19/1999|
+------------------------------------------------+EVENT TIME: 10:30[EDT]|
| NRC NOTIFIED BY: TIM HEAFNER |LAST UPDATE DATE: 05/19/1999|
| HQ OPS OFFICER: STEVE SANDIN +-----------------------------+
+------------------------------------------------+PERSON ORGANIZATION |
|EMERGENCY CLASS: N/A |ANN BOLAND R2 |
|10 CFR SECTION: | |
|NLTR LICENSEE 24 HR REPORT | |
| | |
| | |
| | |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|1 N Y 100 Power Operation |100 Power Operation |
|2 N Y 100 Power Operation |100 Power Operation |
| | |
+------------------------------------------------------------------------------+
EVENT TEXT
+------------------------------------------------------------------------------+
| 24-hour Condition of License report involving fire protection barriers. |
| |
| "On May 19,1999 at 1030 hours. McGuire Nuclear Station determined that |
| provisions of the McGuire fire protection program had not been maintained as |
| required by conditions C.(4) (Unit I) and C.(7) (Unit 2) of the McGuire |
| Facility Operating License. |
| |
| "Selected Licensee Commitment 16.9-5 requires that all fire rated assemblies |
| and sealing devices separating |
| |
| 1. Safety from non-safety related areas or, |
| 2. Redundant analyzed post fire safe shutdown equipment or, |
| 3. The Control Complex (Control Room, Cable Rooms, and Battery Rooms) from |
| the remainder of the plant or, |
| 4. Containment from Non-containment areas shall be operable. |
| |
| "Contrary to this, numerous fire barrier penetrations designed to satisfy |
| the above separation criteria for certain containment to non-containment |
| penetrations have been determined to be inoperable. This discovery was made |
| as part of routine surveillance testing. A particular penetration design |
| has been identified to have been installed in non-conformance with the |
| design. The design specifies the incorporation of a fire resistive block |
| material surrounded by a metal frame as the physical penetration which is |
| installed in the wall as a unit. Necessary cables then penetrate through the |
| fire resistive block. Physical penetrations were installed in excess of |
| those actually necessary for transporting cables to accommodate future |
| modifications or other contingencies. Penetrations in these 'blank |
| locations' incorporated a welded steel plate as opposed to the design |
| described above. This configuration has not been qualified as a 3 hour fire |
| rated assembly. |
| |
| "Remedial actions required by Selected Licensee Commitment 16.9-5 have been |
| implemented (fire watches). The ability of the facility to achieve safe |
| shutdown conditions under a postulated design bases fire has not been |
| compromised by the discovered condition. Therefore, McGuire did not operate |
| outside the design basis of the plant. |
| |
| "The resident Inspector has been notified. A follow-up written report will |
| be issued within 14 days. Note that this event is not reportable under the |
| requirements of 10CFR50.72 or 10CFR50.73." |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
|Other Nuclear Material |Event Number: 35740 |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| REP ORG: U.S. ARMY |NOTIFICATION DATE: 05/19/1999|
|LICENSEE: U.S. ARMY |NOTIFICATION TIME: 15:18[EDT]|
| CITY: ROCK ISLAND REGION: 3 |EVENT DATE: 05/19/1999|
| COUNTY: STATE: IL |EVENT TIME: [CDT]|
|LICENSE#: 12-00722-06 AGREEMENT: Y |LAST UPDATE DATE: 05/19/1999|
| DOCKET: |+----------------------------+
| |PERSON ORGANIZATION |
| |BRENT CLAYTON R3 |
| |ANN BOLAND R2 |
+------------------------------------------------+LARRY CAMPER NMSS |
| NRC NOTIFIED BY: JEFF HAVENNER |FEMA, DOE, USDA, HHS FAX |
| HQ OPS OFFICER: STEVE SANDIN |EPA, DOT(VIA NRC) FAX |
+------------------------------------------------+ |
|EMERGENCY CLASS: N/A | |
|10 CFR SECTION: | |
|BAB1 20.2201(a)(1)(i) LOST/STOLEN LNM>1000X | |
| | |
| | |
| | |
| | |
+------------------------------------------------------------------------------+
EVENT TEXT
+------------------------------------------------------------------------------+
| MISSING MUZZLE REFERENCE SENSOR CONTAINING 10 CURIE TRITIUM SOURCE. |
| |
| ON 5/19/99 WHILE TRAINING AT FT. PICKETT, VA, A TANK UNIT OF THE |
| PENNSYLVANIA ARMY NATIONAL GUARD NOTED THAT A MUZZLE REFERENCE SENSOR |
| MOUNTED ON THE END OF THE TANK GUN BARREL WAS MISSING. THE DEVICE CONTAINS |
| 10 CURIES TRITIUM GAS. A SEARCH IS UNDERWAY TO LOCATE THE MISSING SOURCE. |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
|General Information or Other |Event Number: 35741 |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| REP ORG: NC BUREAU OF RAD PROTECTION |NOTIFICATION DATE: 05/19/1999|
|LICENSEE: STERIGENICS INTERNATIONAL CORP |NOTIFICATION TIME: 15:53[EDT]|
| CITY: CHARLOTTE REGION: 2 |EVENT DATE: 05/13/1999|
| COUNTY: STATE: NC |EVENT TIME: 21:30[EDT]|
|LICENSE#: NC 060-0974-1 AGREEMENT: Y |LAST UPDATE DATE: 05/19/1999|
| DOCKET: |+----------------------------+
| |PERSON ORGANIZATION |
| |ANN BOLAND R2 |
| |LARRY CAMPER NMSS |
+------------------------------------------------+ |
| NRC NOTIFIED BY: J. MARION EADDY III | |
| HQ OPS OFFICER: STEVE SANDIN | |
+------------------------------------------------+ |
|EMERGENCY CLASS: N/A | |
|10 CFR SECTION: | |
|NAGR AGREEMENT STATE | |
| | |
| | |
| | |
| | |
+------------------------------------------------------------------------------+
EVENT TEXT
+------------------------------------------------------------------------------+
| AGREEMENT STATE REPORT INVOLVING PANORAMIC IRRADIATOR SOURCE RACK FAILURE TO |
| RETRACT TO THE FULLY SHIELDED POSITION. |
| |
| The following information was provided by the NC Bureau of Radiation |
| Protection via fax: |
| |
| LICENSEE: |
| |
| SteriGenics International Corporation |
| 10811 Withers Cove Park |
| Charlotte, NC 28278 |
| N.C. Radioactive Materials License No. 060-0974-1 |
| |
| DESCRIPTION OF THE EVENT: |
| |
| The N. C. Division of Radiation Protection (DRP) was notified by telephone |
| on 14 May 1999 at 15:50 that a power failure had occurred at the above |
| referenced facility on 13 May 1999 at approximately 21:30. The licensee has |
| two (2) irradiator pools at the facility. One of the racks (the 'smaller' |
| activity rack) did not return to its fully shielded position as required by |
| 10 CFR 36.37 and had to be manually lowered into the pool. The Radiation |
| Safety Officer at the facility stated that no cell entry occurred and that |
| all interlocks were operational during the event. |
| |
| SteriGenics is in the process of conducting tests of the uninterruptable |
| power supply(ies) on site, as well as other systems. Their engineering staff |
| is currently analyzing the root cause of the failure. SteriGenics has been |
| notified by DRP of the 30 day reporting requirement in 10 CFR 36.83. |
| |
| North Carolina has assigned Log No. 99-08 to this incident. |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
|Power Reactor |Event Number: 35742 |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: SOUTH TEXAS REGION: 4 |NOTIFICATION DATE: 05/19/1999|
| UNIT: [1] [] [] STATE: TX |NOTIFICATION TIME: 17:27[EDT]|
| RXTYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 05/19/1999|
+------------------------------------------------+EVENT TIME: 15:00[CDT]|
| NRC NOTIFIED BY: GREG JANAK |LAST UPDATE DATE: 05/19/1999|
| HQ OPS OFFICER: STEVE SANDIN +-----------------------------+
+------------------------------------------------+PERSON ORGANIZATION |
|EMERGENCY CLASS: N/A |GARY SANBORN R4 |
|10 CFR SECTION: | |
|NLTR LICENSEE 24 HR REPORT | |
| | |
| | |
| | |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|1 N Y 100 Power Operation |100 Power Operation |
| | |
| | |
+------------------------------------------------------------------------------+
EVENT TEXT
+------------------------------------------------------------------------------+
| 24-HOUR REPORT INVOLVING VIOLATION OF OPERATING LICENSE BASED ON INOPERABLE |
| AUXILIARY FEEDWATER TRAIN. |
| |
| "On May 13, 1999, it was discovered that Train 'D' Auxiliary Feedwater |
| Regulating Valve FV-7526 would not open as required during surveillance |
| testing. Investigations revealed that at 05:00 on May 10, 1999, Train 'D' |
| Auxiliary Feedwater was removed from service to perform a static diagnostic |
| test on AF-FV-7526. This test was completed and Train 'D' Auxiliary |
| Feedwater was declared operable at 09:20 on May 11, 1999. |
| |
| "The failure of AF-FV-7526 was found to be caused by a misadjusted bracket |
| for the limit switch which could have been caused during the static |
| diagnostic test that was performed on May 10. 1999. This problem was |
| corrected and Train 'D' Auxiliary Feedwater was declared operable at 00:10 |
| on May 14,1999. This rendered Train 'D' Auxiliary Feedwater inoperable for a |
| period of 91 hours and 10 minutes. This exceeded the time allowed under |
| Technical Specification 3.7.1.2 action b., which states that the inoperable |
| component must be restored to [an]operable[condition] within 72 hours. |
| |
| "This is a violation of Operating License NPF-076, Section 2G." |
| |
| The licensee informed the NRC Resident Inspector. |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
|Power Reactor |Event Number: 35743 |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: BRAIDWOOD REGION: 3 |NOTIFICATION DATE: 05/19/1999|
| UNIT: [] [2] [] STATE: IL |NOTIFICATION TIME: 20:53[EDT]|
| RXTYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 05/19/1999|
+------------------------------------------------+EVENT TIME: 19:17[CDT]|
| NRC NOTIFIED BY: LARRY BROOKS |LAST UPDATE DATE: 05/19/1999|
| HQ OPS OFFICER: STEVE SANDIN +-----------------------------+
+------------------------------------------------+PERSON ORGANIZATION |
|EMERGENCY CLASS: N/A |BRENT CLAYTON R3 |
|10 CFR SECTION: | |
|ARPS 50.72(b)(2)(ii) RPS ACTUATION | |
| | |
| | |
| | |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE |
+-----+----------+-------+--------+-----------------+--------+-----------------+
| | |
|2 A/R Y 4 Startup |0 Hot Standby |
| | |
+------------------------------------------------------------------------------+
EVENT TEXT
+------------------------------------------------------------------------------+
| AUTOMATIC REACTOR TRIP DUE TO SPIKING ON INTERMEDIATE RANGE NUCLEAR |
| INSTRUMENT (IRNI) "N-36" DUE TO AN APPARENT INSTRUMENTATION PROBLEM. |
| |
| DURING STARTUP OF UNIT 2 FOLLOWING A REFUELING OUTAGE, THE IRNI "N-36" |
| UNEXPECTEDLY SPIKED CAUSING A "HIGH FLUX" TRIP (FIRST OUT). IT APPEARS TO |
| BE AN INSTRUMENTATION PROBLEM. THERE WAS NO I&C MAINTENANCE IN PROGRESS AT |
| THE TIME. ALL CONTROL RODS FULLY INSERTED. DECAY HEAT WHICH IS LOW IS |
| BEING REJECTED TO THE MAIN CONDENSER VIA THE STEAM DUMPS. THE STARTUP |
| FEEDWATER PUMP IS IN SERVICE SUPPLYING WATER TO THE STEAM GENERATORS. ALL |
| SYSTEM FUNCTIONED AS REQUIRED WITH ALL SAFETY-RELATED EQUIPMENT OPERATIONAL. |
| THE LICENSEE WILL MAINTAIN THE UNIT IN MODE 3 PENDING THE RESULTS OF THE |
| INVESTIGATION. THERE WAS NO RADIOACTIVE RELEASE. |
| |
| THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. |
+------------------------------------------------------------------------------+
Page Last Reviewed/Updated Thursday, March 25, 2021
Page Last Reviewed/Updated Thursday, March 25, 2021