The U.S. Nuclear Regulatory Commission is in the process of rescinding or revising guidance and policies posted on this webpage in accordance with Executive Order 14151 Ending Radical and Wasteful Government DEI Programs and Preferencing, and Executive Order 14168 Defending Women From Gender Ideology Extremism and Restoring Biological Truth to the Federal Government. In the interim, any previously issued diversity, equity, inclusion, or gender-related guidance on this webpage should be considered rescinded that is inconsistent with these Executive Orders.

Event Notification Report for January 27, 1999

                    U.S. Nuclear Regulatory Commission
                              Operations Center

                              Event Reports For
                           01/26/1999 - 01/27/1999

                              ** EVENT NUMBERS **

35206  35239  35317  

!!!!!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED  !!!!!!!
+------------------------------------------------------------------------------+
|Power Reactor                                    |Event Number:   35206       |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: PERRY                    REGION:  3  |NOTIFICATION DATE: 12/30/1998|
|    UNIT:  [1] [] []                 STATE:  OH |NOTIFICATION TIME: 19:03[EST]|
|   RXTYPE: [1] GE-6                             |EVENT DATE:        12/30/1998|
+------------------------------------------------+EVENT TIME:        16:00[EST]|
| NRC NOTIFIED BY:  HENRY KELLY                  |LAST UPDATE DATE:  01/26/1999|
|  HQ OPS OFFICER:  BOB STRANSKY                 +-----------------------------+
+------------------------------------------------+PERSON          ORGANIZATION |
|EMERGENCY CLASS:          N/A                   |MONTE PHILLIPS       R3      |
|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 REQUIRED BY PLANT OPERATING LICENSE DUE TO VIOLATION OF       |
| TECHNICAL SPECIFICATIONS                                                     |
|                                                                              |
| The licensee has discovered that a solenoid-operated isolation valve on a    |
| 3/8" diameter sample line from the secondary containment was excluded from   |
| the plant technical specifications (TS), and, consequently, it was not       |
| subject to surveillances required by the TS.  The valve is located on a      |
| secondary containment atmosphere sample line which connects to the           |
| post-accident sampling system.  The licensee has verified that the valve is  |
| closed.                                                                      |
|                                                                              |
| The NRC resident inspector has been informed of this event by the licensee.  |
|                                                                              |
| * * * UPDATE AT 2117 EST ON 01/14/99 FROM BRIAN STETSON TO S. SANDIN * * *   |
|                                                                              |
| The following text is a portion of a facsimile received from the licensee:   |
|                                                                              |
| "During the extent of condition investigation of Condition Report 98-2142,   |
| it was identified that instrument vent and drain valves associated with the  |
| reactor core isolation cooling system (E51) and the annulus exhaust gas      |
| treatment system (M15) could fit the definition of secondary containment     |
| isolation valves as discussed in Technical Specification Bases 3.6.4.2.      |
| However, these valves are not surveilled and checked closed every 31 days as |
| required by Surveillance Requirement 3.6.4.2.1.  There are 12 valves (3/8")  |
| associated with E51, and 8 valves (1/4") associated with M15."               |
|                                                                              |
| The licensee plans to continue its evaluation and has informed the NRC       |
| Resident Inspector.  The NRC Operations Officer notified the R3DO (Gavula).  |
|                                                                              |
| * * * UPDATE 1347 EST ON 1/26/99 FROM FRED SMITH TO S.SANDIN * * *           |
|                                                                              |
| "Update to notification ENF 35206. (Retraction)                              |
|                                                                              |
| "The event notification of 12/30/98 is being retracted based on an           |
| engineering determination that the 3/8" secondary containment atmosphere     |
| sample line that connects to the post accident sampling system is not a      |
| secondary containment isolation valve (SCIV).  Additionally, the sample      |
| valve is required to be opened post accident.  Surveillance requirement (SR) |
| 3.6.4.2.1 requires, in part, to verify each secondary containment isolation  |
| valve that is required to be closed during an accident condition is closed.  |
| The sample valve is not subject to the specification or the surveillance     |
| requirement and no report is required by the plant operating license due to  |
| a violation of TS.                                                           |
|                                                                              |
| "The event notification of 1/14/99 is also being retracted based on the      |
| engineering determination that the 12 valves (3/8") associated with reactor  |
| core isolation cooling and the 8 valves (1/4") associated with annulus       |
| exhaust gas treatment are also not secondary containment isolation valves.   |
| These valves are not subject to TS 3.6.4.2 and SR 3.6.4.2.1 and no report is |
| required by the plant operating license due to a violation of TS."           |
|                                                                              |
| THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR.  NOTIFIED R3DO(VEGEL).     |
+------------------------------------------------------------------------------+

+------------------------------------------------------------------------------+
|Power Reactor                                    |Event Number:   35239       |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: RIVER BEND               REGION:  4  |NOTIFICATION DATE: 01/11/1999|
|    UNIT:  [1] [] []                 STATE:  LA |NOTIFICATION TIME: 16:56[EST]|
|   RXTYPE: [1] GE-6                             |EVENT DATE:        01/11/1999|
+------------------------------------------------+EVENT TIME:        15:20[CST]|
| NRC NOTIFIED BY:  RUSS GODWIN                  |LAST UPDATE DATE:  01/26/1999|
|  HQ OPS OFFICER:  BOB STRANSKY                 +-----------------------------+
+------------------------------------------------+PERSON          ORGANIZATION |
|EMERGENCY CLASS:          N/A                   |BLAIR SPITZBERG      R4      |
|10 CFR SECTION:                                 |                             |
|APRE 50.72(b)(2)(vi)     OFFSITE NOTIFICATION   |                             |
|                                                |                             |
|                                                |                             |
|                                                |                             |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|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                                   
+------------------------------------------------------------------------------+
| NOTIFICATION TO STATE DEPARTMENT OF ENVIRONMENTAL QUALITY                    |
|                                                                              |
| "On January 11, 1999, RBS personnel made a report to the Louisiana           |
| Department of Environmental Quality related to a potential defect in fuel    |
| cladding. A previous report was made on September 21, 1998, and updated on   |
| October 22, 1998. RBS personnel have continued to monitor plant conditions   |
| after the first two had been suppressed. Chemistry sampling and power        |
| suppression results indicate a probable third fuel failure. Indications      |
| could be caused by a previously identified fuel failure.                     |
|                                                                              |
| "The plant is operating at 100% power with radioactive releases well below   |
| the limits of the Technical Requirements Manual and 10 CFR 20. Plant         |
| personnel continue to implement site procedures to address the issue, and    |
| take appropriate actions."                                                   |
|                                                                              |
| The NRC resident inspector has been informed of this notification by the     |
| licensee.                                                                    |
|                                                                              |
| * * * UPDATE 1507 EST ON 1/26/99 FROM JOEY CLARK TO S.SANDIN * * *           |
|                                                                              |
| "On January 26, 1999 [at 1305 CST], RBS personnel made a report to the       |
| Louisiana Department of Environmental Quality related to a potential defect  |
| in fuel cladding.  A previous report was made on September 21,1998, and      |
| updated on October 22, 1998, and on January 11,1999.  Plant instrumentation  |
| and chemistry sampling indicates RBS has three (3) apparent fuel leakers and |
| a probable fourth fuel leaker adjacent to a previously identified and        |
| suppressed fuel leaker.                                                      |
|                                                                              |
| "The plant is operating at 94.5% power with radioactive releases well below  |
| the limits of the Technical Requirements Manual and 10CFR20.   Plant         |
| personnel continue to implement site procedures to address this issue, and   |
| take appropriate actions."                                                   |
|                                                                              |
| THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR.  NOTIFIED R4DO(MARSCHALL). |
+------------------------------------------------------------------------------+

+------------------------------------------------------------------------------+
|Fuel Cycle Facility                              |Event Number:   35317       |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: PADUCAH GASEOUS DIFFUSION PLANT      |NOTIFICATION DATE: 01/26/1999|
|   RXTYPE: URANIUM ENRICHMENT FACILITY          |NOTIFICATION TIME: 15:25[EST]|
| COMMENTS: 2 DEMOCRACY CENTER                   |EVENT DATE:        01/26/1999|
|           6903 ROCKLEDGE DRIVE                 |EVENT TIME:        09:15[CST]|
|           BETHESDA, MD 20817    (301)564-3200  |LAST UPDATE DATE:  01/26/1999|
|    CITY:  PADUCAH                  REGION:  3  +-----------------------------+
|  COUNTY:  McCRACKEN                 STATE:  KY |PERSON          ORGANIZATION |
|LICENSE#:  GDP-1                 AGREEMENT:  Y  |TONY VEGEL           R3      |
|  DOCKET:  0707001                              |JOSEY PICCONE        NMSS    |
+------------------------------------------------+                             |
| NRC NOTIFIED BY:  TOM WHITE                    |                             |
|  HQ OPS OFFICER:  STEVE SANDIN                 |                             |
+------------------------------------------------+                             |
|EMERGENCY CLASS:          N/A                   |                             |
|10 CFR SECTION:                                 |                             |
|NBNL                     RESPONSE-BULLETIN      |                             |
|                                                |                             |
|                                                |                             |
|                                                |                             |
|                                                |                             |
+------------------------------------------------------------------------------+

                                   EVENT TEXT                                   
+------------------------------------------------------------------------------+
| 24-HOUR NRC 91-01 BULLETIN NOTIFICATION INVOLVING FAILURE TO MAINTAIN DOUBLE |
| CONTINGENCY                                                                  |
|                                                                              |
| "On 1/25/99 at 1430 CST, NCS [nuclear criticality safety] Incident report    |
| NCS-INC-99-001 was identified via ATR [problem report] as being incorrect.   |
| This NCS incident report was incorrectly classified on 1/12/99 and was       |
| subsequently not reported. The original NCS incident report concerned a pump |
| subassembly which had been removed and the Post NDA [non-destructive assay]  |
| had not been performed within 24 hours as required by TSR 2.5.4.2.  It       |
| incorrectly identified that this did not constitute a loss of a leg of the   |
| double contingency principle. Upon further review, NCS has determine that    |
| one of the legs of the double contingency principle is established by the    |
| independent verification of an always safe mass by post-removal NDA          |
| measurements performed within 24 hours of removal.  Since this did not occur |
| in the assumed time frame, double contingency was not maintained even though |
| the NDA results did confirm an always safe mass.                             |
|                                                                              |
| "Ropes/posting used to isolate personnel from area implemented on 1/12/99    |
| were removed that day when post-removal NDA results were obtained.           |
|                                                                              |
| "This event is being categorized as a 24-hour event in accordance with       |
| Safety Analysis Report Table 6.9-1, Criteria A.4.a and NRC Bulletin 91-01    |
| Supplement 1 report."                                                        |
|                                                                              |
| THE NRC RESIDENT INSPECTOR HAS BEEN INFORMED AND THE DOE SITE REPRESENTATIVE |
| WILL BE INFORMED.                                                            |
+------------------------------------------------------------------------------+


Page Last Reviewed/Updated Thursday, March 25, 2021