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Event Notification Report for January 20, 1999

                    U.S. Nuclear Regulatory Commission
                              Operations Center

                              Event Reports For
                           01/19/1999 - 01/20/1999

                              ** EVENT NUMBERS **

35178  35280  35281  35282  35283  35284  

!!!!!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED  !!!!!!!
+------------------------------------------------------------------------------+
|Power Reactor                                    |Event Number:   35178       |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: OCONEE                   REGION:  2  |NOTIFICATION DATE: 12/20/1998|
|    UNIT:  [] [2] []                 STATE:  SC |NOTIFICATION TIME: 06:19[EST]|
|   RXTYPE: [1] B&W-L-LP,[2] B&W-L-LP,[3] B&W-L-L|EVENT DATE:        12/20/1998|
+------------------------------------------------+EVENT TIME:        02:53[EST]|
| NRC NOTIFIED BY:  HILL                         |LAST UPDATE DATE:  01/19/1999|
|  HQ OPS OFFICER:  CHAUNCEY GOULD               +-----------------------------+
+------------------------------------------------+PERSON          ORGANIZATION |
|EMERGENCY CLASS:          N/A                   |PAUL FREDRICKSON     R2      |
|10 CFR SECTION:                                 |                             |
|AESF 50.72(b)(2)(ii)     ESF ACTUATION          |                             |
|                                                |                             |
|                                                |                             |
|                                                |                             |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|UNIT |SCRAM CODE|RX CRIT|INIT PWR|   INIT RX MODE  |CURR PWR|  CURR RX MODE   |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|                                                   |                          |
|2     N          Y       100      Power Operation  |100      Power Operation  |
|                                                   |                          |
+------------------------------------------------------------------------------+
                                   EVENT TEXT                                   
+------------------------------------------------------------------------------+
| THE PLANT HAD AN ENGINEERED SAFEGUARDS ACTUATION DURING A SURVEILLANCE.      |
|                                                                              |
| WHILE PERFORMING IP/O/A/0310/012B(ENGINEERED SAFEGUARDS SYSTEMS LOGIC        |
| SUBSYSTEM 1 LOW PRESSURE INJECTION CHANNEL 3 ON LINE TEST) UNIT 2 RECEIVED A |
| SPURIOUS/PARTIAL ACTION OF ES CHANNEL 3.  THE "2A" LOW PRESSURE INJECTION    |
| PUMP AND THE "C" LOW PRESSURE SERVICE WATER PUMP STARTED AUTOMATICALLY.      |
| THESE COMPONENTS WERE SECURED WITHIN 2 MINUTES AND 4 MINUTES RESPECTIVELY AT |
| THE DIRECTION OF THE CONTROL ROOM SRO.  THE REASON FOR THE SPURIOUS ACTION   |
| IS UNKNOWN AT THIS TIME AND IS BEING INVESTIGATED.  THERE WAS NO INDICATION  |
| OF HUMAN ERROR AND THEY SUSPECT IT MAY HAVE BEEN A FAULTY RELAY.             |
|                                                                              |
| THE RESIDENT INSPECTOR WAS NOTIFIED.                                         |
|                                                                              |
| ---------------------------UPDATE AT 1311 ON 1/19/99, BY OWENS RECEIVED BY   |
| WEAVER -------------------------------                                       |
|                                                                              |
| "After further review of the circumstances of this event, it has been        |
| determined that a single ESF component actuation occurred as a result of the |
| failure of the test logic of the ES actuation circuitry for this channel.    |
| The failed ES channel 3 test logic and the trip logic were replaced and the  |
| surveillance was satisfactorily completed. The removed ES channel 3 test     |
| logic was subsequently determined to have been operable during the test (as  |
| designed) and that the required ESF components (and other required non-ESF   |
| components) would have actuated during the test. These ESF components        |
| include the 2A LPI pump (which actuated), and the injection mode LPI suction |
| isolation valve and discharge valve for this train of ESF (which did not     |
| actuate and should not have actuated per design of the test logic) .         |
|                                                                              |
| "NUREG-1022, Section 3.3.2 guidance, states that the NRC staff generally     |
| does not consider single component actuations, by themselves, to be          |
| reportable if they are part of complex systems (trains) used for accident    |
| mitigation. In addition, actuation of the LPI pump by itself would not be    |
| sufficient to mitigate the consequence of an accident.                       |
|                                                                              |
| "As a consequence, Duke Energy has concluded that this event does not meet   |
| the report requirements of 10 CFR 50.72."                                    |
|                                                                              |
| The licensee informed the NRC resident inspector.  The operations center     |
| informed the R2DO (Christensen).                                             |
+------------------------------------------------------------------------------+

+------------------------------------------------------------------------------+
|Power Reactor                                    |Event Number:   35280       |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: BRAIDWOOD                REGION:  3  |NOTIFICATION DATE: 01/18/1999|
|    UNIT:  [1] [] []                 STATE:  IL |NOTIFICATION TIME: 21:46[EST]|
|   RXTYPE: [1] W-4-LP,[2] W-4-LP                |EVENT DATE:        01/18/1999|
+------------------------------------------------+EVENT TIME:        20:17[CST]|
| NRC NOTIFIED BY:  CARL MOORE                   |LAST UPDATE DATE:  01/19/1999|
|  HQ OPS OFFICER:  DOUG WEAVER                  +-----------------------------+
+------------------------------------------------+PERSON          ORGANIZATION |
|EMERGENCY CLASS:          UNU                   |JIM GAVULA           R3      |
|10 CFR SECTION:                                 |BRUCE BOGER          NRR     |
|AAEC 50.72(a)(1)(i)      EMERGENCY DECLARED     |FRANK CONGEL         IRD     |
|                                                |SULLIVAN             FEMA    |
|                                                |                             |
|                                                |                             |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|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                                   
+------------------------------------------------------------------------------+
| UNUSUAL EVENT - LOSS OF APPROXIMATELY 50% OF CONTROL ROOM ANNUNCIATORS       |
|                                                                              |
| "Loss of redundant Annunciator Power Supplies has rendered a substantial     |
| number of safety related annunciators inoperable.  This required a GSEP      |
| notification - Unusual Event, (MU-6 - Loss of Annunciators for >= 15         |
| minutes).  Backup indications are available and increased main control board |
| monitoring has been implemented."                                            |
|                                                                              |
| The licensee has called in additional personnel to help with the increased   |
| monitoring.  Troubleshooting on the power supplies is in progress.  The NRC  |
| resident inspector has been notified.                                        |
|                                                                              |
|                                                                              |
| *** UPDATE ON 01/19/99 @ 0539 BY RAUSH TO GOULD ***                          |
|                                                                              |
| THE PLANT TERMINATED THE NOUE AT 0407 WHEN TESTING VERIFIED THE SYSTEMS WERE |
| FULLY OPERATIONAL.  THE CAUSE OF THE POWER SUPPLY FAILURE WAS DUE TO A       |
| GROUND WHICH HAS BEEN REPAIRED.   BOTH BACKUP AND MAIN POWER SUPPLY HAVE     |
| BEEN RETURNED TO SERVICE.                                                    |
|                                                                              |
| THE NRC RESIDENT INSPECTOR AND THE STATE WAS NOTIFIED.                       |
|                                                                              |
| THE REG 3 RDO(GAVULA) AND THE EO( BOGER )WERE NOTIFIED ALONG WITH FEMA       |
| (WRIGHT).                                                                    |
+------------------------------------------------------------------------------+

+------------------------------------------------------------------------------+
|Power Reactor                                    |Event Number:   35281       |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: VERMONT YANKEE           REGION:  1  |NOTIFICATION DATE: 01/19/1999|
|    UNIT:  [1] [] []                 STATE:  VT |NOTIFICATION TIME: 08:41[EST]|
|   RXTYPE: [1] GE-4                             |EVENT DATE:        01/19/1999|
+------------------------------------------------+EVENT TIME:        08:25[EST]|
| NRC NOTIFIED BY:  MAY                          |LAST UPDATE DATE:  01/19/1999|
|  HQ OPS OFFICER:  CHAUNCEY GOULD               +-----------------------------+
+------------------------------------------------+PERSON          ORGANIZATION |
|EMERGENCY CLASS:          N/A                   |GENE KELLY           R1      |
|10 CFR SECTION:                                 |                             |
|AARC 50.72(b)(1)(v)      OTHER ASMT/COMM INOP   |                             |
|                                                |                             |
|                                                |                             |
|                                                |                             |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|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                                   
+------------------------------------------------------------------------------+
| LOST CAPABILITY FOR EMERGENCY NOTIFICATION THROUGH THE WEATHER RADIOS.       |
|                                                                              |
| THE LICENSEE WAS INFORMED THAT THE AMES HILL TRANSMITTER IS OUT OF SERVICE.  |
| THIS FAILURE DEGRADES THE LICENSEE'S CAPABILITY FOR MAKING NOTIFICATIONS TO  |
| THE PUBLIC THROUGH WEATHER RADIOS DURING AN EMERGENCY.  TECHNICIANS ARE ON   |
| THE WAY TO MAKE REPAIRS TO THE TRANSMITTER.                                  |
|                                                                              |
| THE RESIDENT INSPECTOR WAS NOTIFIED.   STATE AND LOCAL AGENCIES WERE ALSO    |
| NOTIFIED.                                                                    |
|                                                                              |
| *** UPDATE ON 01/19/99 @ 1037 BY MAY TO GOULD ***                            |
|                                                                              |
| THE AMES HILL TRANSMITTER WAS RETURNED TO SERVICE AT 1031.                   |
|                                                                              |
| THE NRC RESIDENT INSPECTOR WILL BE NOTIFIED ALONG WITH THE STATE AND LOCAL   |
| AGENCIES.                                                                    |
|                                                                              |
| THE REG 1 RDO(KELLY) WAS NOTIFIED.                                           |
|                                                                              |
| HOO NOTE: SEE SIMILAR EVENT #35276                                           |
+------------------------------------------------------------------------------+

+------------------------------------------------------------------------------+
|Power Reactor                                    |Event Number:   35282       |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: CALVERT CLIFFS           REGION:  1  |NOTIFICATION DATE: 01/19/1999|
|    UNIT:  [1] [2] []                STATE:  MD |NOTIFICATION TIME: 14:43[EST]|
|   RXTYPE: [1] CE,[2] CE                        |EVENT DATE:        01/19/1999|
+------------------------------------------------+EVENT TIME:        14:20[EST]|
| NRC NOTIFIED BY:  JAMES GROOMS                 |LAST UPDATE DATE:  01/19/1999|
|  HQ OPS OFFICER:  DOUG WEAVER                  +-----------------------------+
+------------------------------------------------+PERSON          ORGANIZATION |
|EMERGENCY CLASS:          N/A                   |JOHN KINNEMAN        R1      |
|10 CFR SECTION:                                 |                             |
|AESS 50.72(b)(1)(v)      EMERGENCY SIREN INOP   |                             |
|                                                |                             |
|                                                |                             |
|                                                |                             |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|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                                   
+------------------------------------------------------------------------------+
| EMERGENCY SIRENS INOPERABLE                                                  |
|                                                                              |
| The licensee reported that the sirens located in St. Mary's County failed    |
| their bi-weekly test today.  The licensee has 17 of their total 72 sirens    |
| located within that county.  Repair efforts are in progress.                 |
|                                                                              |
| The licensee informed the NRC resident inspector and is working with St.     |
| Mary's County representatives to repair the problem.                         |
+------------------------------------------------------------------------------+

+------------------------------------------------------------------------------+
|Power Reactor                                    |Event Number:   35283       |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: PEACH BOTTOM             REGION:  1  |NOTIFICATION DATE: 01/19/1999|
|    UNIT:  [2] [] []                 STATE:  PA |NOTIFICATION TIME: 16:46[EST]|
|   RXTYPE: [2] GE-4,[3] GE-4                    |EVENT DATE:        01/19/1999|
+------------------------------------------------+EVENT TIME:        14:20[EST]|
| NRC NOTIFIED BY:  TODD STRAYER                 |LAST UPDATE DATE:  01/19/1999|
|  HQ OPS OFFICER:  DOUG WEAVER                  +-----------------------------+
+------------------------------------------------+PERSON          ORGANIZATION |
|EMERGENCY CLASS:          N/A                   |JOHN KINNEMAN        R1      |
|10 CFR SECTION:                                 |                             |
|AIND 50.72(b)(2)(iii)(D) ACCIDENT MITIGATION    |                             |
|                                                |                             |
|                                                |                             |
|                                                |                             |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|UNIT |SCRAM CODE|RX CRIT|INIT PWR|   INIT RX MODE  |CURR PWR|  CURR RX MODE   |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|2     N          Y       100      Power Operation  |100      Power Operation  |
|                                                   |                          |
|                                                   |                          |
+------------------------------------------------------------------------------+
                                   EVENT TEXT                                   
+------------------------------------------------------------------------------+
| HIGH PRESSURE COOLANT INJECTION (HPCI) INOPERABLE                            |
|                                                                              |
| The following text is taken from a licensee facsimile.                       |
|                                                                              |
| "During a scheduled HPCI system test, the HPCI gland seal condenser lower    |
| gasket developed a leak (water leak) sufficient enough to warrant an         |
| immediate shutdown of HPCI.  The HPCI auxiliary oil pump was placed in       |
| pull-to-lock.  The HPCI suction paths from the torus and condensate storage  |
| tanks were isolated to stop the leak out of the gland seal condenser.  The   |
| HPCI system is currently inoperable.  Planned actions are to gather          |
| information from test participants, develop a root cause, and implement      |
| corrective actions in accordance with station procedures.  Per our Technical |
| Specification, the HPCI system is required to be returned to operable status |
| within 14 days."                                                             |
|                                                                              |
| The licensee will inform the NRC resident inspector.                         |
+------------------------------------------------------------------------------+

+------------------------------------------------------------------------------+
|Power Reactor                                    |Event Number:   35284       |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: DUANE ARNOLD             REGION:  3  |NOTIFICATION DATE: 01/20/1999|
|    UNIT:  [1] [] []                 STATE:  IA |NOTIFICATION TIME: 06:04[EST]|
|   RXTYPE: [1] GE-4                             |EVENT DATE:        01/20/1999|
+------------------------------------------------+EVENT TIME:             [CST]|
| NRC NOTIFIED BY:  DAVE SCHUSSLER               |LAST UPDATE DATE:  01/20/1999|
|  HQ OPS OFFICER:  BOB STRANSKY                 +-----------------------------+
+------------------------------------------------+PERSON          ORGANIZATION |
|EMERGENCY CLASS:          N/A                   |ROGER LANKSBURY      R3      |
|10 CFR SECTION:                                 |                             |
|ASHU 50.72(b)(1)(i)(A)   PLANT S/D REQD BY TS   |                             |
|                                                |                             |
|                                                |                             |
|                                                |                             |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|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                                   
+------------------------------------------------------------------------------+
| PLANT SHUTDOWN REQUIRED BY TECHNICAL SPECIFICATIONS                          |
|                                                                              |
| The licensee commenced a unit shutdown in accordance with Technical          |
| Specification (TS) 3.8.1.7 after both standby diesel generators failed to    |
| reach required voltage and frequency within the required time (ten seconds). |
| The licensee stated that the methodology for the test has been changed, and  |
| this was the first test performance using the new methodology.               |
|                                                                              |
| The old test procedure recorded the time for the diesel generators to start  |
| and reach required voltage and frequency, although the generator normally    |
| overshoots the targets slightly before reaching a steady state value. The    |
| revised test methodology records the time for the diesel generators to reach |
| steady state voltage and frequency. The licensee reported that one diesel    |
| generator reached steady state within 15 seconds, and the other reached      |
| steady state within 22 seconds.                                              |
|                                                                              |
| The NRC resident inspector has been informed of this event by the licensee.  |
+------------------------------------------------------------------------------+