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Event Notification Report for November 28, 2000

                    U.S. Nuclear Regulatory Commission
                              Operations Center

                              Event Reports For
                           11/27/2000 - 11/28/2000

                              ** EVENT NUMBERS **

37469  

!!!!!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED  !!!!!!!
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|Power Reactor                                    |Event Number:   37469       |
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| FACILITY: SURRY                    REGION:  2  |NOTIFICATION DATE: 10/28/2000|
|    UNIT:  [1] [2] []                STATE:  VA |NOTIFICATION TIME: 17:40[EDT]|
|   RXTYPE: [1] W-3-LP,[2] W-3-LP                |EVENT DATE:        10/28/2000|
+------------------------------------------------+EVENT TIME:        15:11[EDT]|
| NRC NOTIFIED BY:  HARROW                       |LAST UPDATE DATE:  11/27/2000|
|  HQ OPS OFFICER:  JOHN MacKINNON               +-----------------------------+
+------------------------------------------------+PERSON          ORGANIZATION |
|EMERGENCY CLASS:          N/A                   |ANNE BOLAND          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   |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|1     N          Y       100      Power Operation  |100      Power Operation  |
|2     N          N       0        Hot Shutdown     |0        Hot Shutdown     |
|                                                   |                          |
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                                   EVENT TEXT                                   
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| RWST CROSS-TIE VALVES UNEXPECTEDLY OPENED DURING PLANNED MAINTENANCE         |
|                                                                              |
| At 1511 hours, with Unit 2 in Intermediate Shutdown (ISD), approximately 375 |
| degrees F, Unit 1 and Unit 2 RWST Cross-tie-valves opened when the High      |
| Steam Flow SI signal was unblocked for planned maintenance.   By design, the |
| Header to Line SI signal which opens these valves is unblocked when High     |
| Steam Flow is unblocked.  At the time of the unblock, a header to line       |
| condition existed on Unit 2 due to plant conditions.  This design was newly  |
| implemented during the current Unit 2 refueling outage and procedures did    |
| not provide adequate steps to prevent the valves from opening.  A Header to  |
| Line SI signal was not received as it was properly defeated in accordance    |
| with station procedures.  The cross-tie valves were manually closed when the |
| condition was identified as not required.                                    |
|                                                                              |
| Unit 1 is currently at 100% power. Unit 2 is in Intermediate Shutdown with   |
| RCS heatup and pressurization in progress.                                   |
|                                                                              |
| The NRC Resident Inspector was notified of this event by the licensee.       |
|                                                                              |
| * * * UPDATE 1725EST ON 11/27/00 FROM ALLEN HARROW TO S. SANDIN * * *        |
|                                                                              |
| The licensee is retracting this report based on the following:               |
|                                                                              |
| "At 1740 hours on 10/28/00, Surry Power Station made a 4 hour Non-Emergency  |
| Notification in accordance with 10CFR50.72(b)(2)(ii) due to the opening of   |
| the RWST Cross-tie valves when the High Steam Flow SI signal was unblocked   |
| for planned maintenance (Event Number 37469).                                |
|                                                                              |
| "Based on further review of the event reported on October 28, 2000 it has    |
| been determined that the conditions did not meet the criteria of 10CFR50.72  |
| as clarified in NUREG 1022, Rev 1. The NUREG states:                         |
|                                                                              |
| 'Usually, the staff would not consider this to include single component      |
| actuations because single components of complex systems, by themselves,      |
| usually do not mitigate the consequences of significant events. However, in  |
| some cases a component would be sufficient to mitigate the event (i.e.       |
| perform the ESF function) and its actuation would, therefore, be reportable. |
| This position is consistent with the statement that the reporting            |
| requirement is based on the premise that ESFs are provided to mitigate the   |
| consequence of a significant event.                                          |
|                                                                              |
| 'Single trains do mitigate the consequences, and, thus, train level          |
| actuations are reportable.'                                                  |
|                                                                              |
| "Specifically, the initial assessment considered the event as an ESF         |
| actuation and therefore reportable under criterion 10CFR50.72(b)(2)(ii). The |
| nature of this event does not constitute a train actuation. The only signal  |
| affected was that going to the RWST Cross-tie valves. This occurred because  |
| the block signal was unblocked due to placing the RCS narrow range           |
| temperature loops in trip while performing the RTD cross calibrations while  |
| heating up Unit 2 following a refueling outage. The details of this event    |
| are consistent with the discussion and examples of NUREG 1022 that would not |
| be reported.                                                                 |
|                                                                              |
| "This notification is being made to retract the report made on 10/28/00      |
| based on the above discussion."                                              |
|                                                                              |
| The licensee informed the NRC resident inspector.  Notified R2DO(Rodgers).   |
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