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Event Notification Report for August 18, 1999

                    U.S. Nuclear Regulatory Commission
                              Operations Center

                              Event Reports For
                           08/17/1999 - 08/18/1999

                              ** EVENT NUMBERS **

36017  

!!!!!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED  !!!!!!!
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|Power Reactor                                    |Event Number:   36017       |
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| FACILITY: MILLSTONE                REGION:  1  |NOTIFICATION DATE: 08/11/1999|
|    UNIT:  [] [2] []                 STATE:  CT |NOTIFICATION TIME: 14:08[EDT]|
|   RXTYPE: [1] GE-3,[2] CE,[3] W-4-LP           |EVENT DATE:        08/11/1999|
+------------------------------------------------+EVENT TIME:        13:53[EDT]|
| NRC NOTIFIED BY:  KEN TRUESDALE                |LAST UPDATE DATE:  08/17/1999|
|  HQ OPS OFFICER:  LEIGH TROCINE                +-----------------------------+
+------------------------------------------------+PERSON          ORGANIZATION |
|EMERGENCY CLASS:          N/A                   |HAROLD GRAY          R1      |
|10 CFR SECTION:                                 |                             |
|ADEG 50.72(b)(1)(ii)     DEGRAD COND DURING OP  |                             |
|                                                |                             |
|                                                |                             |
|                                                |                             |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|UNIT |SCRAM CODE|RX CRIT|INIT PWR|   INIT RX MODE  |CURR PWR|  CURR RX MODE   |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|                                                   |                          |
|2     N          Y       100      Power Operation  |100      Power Operation  |
|                                                   |                          |
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                                   EVENT TEXT                                   
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| DISCOVERY OF A HISTORICAL CONDITION INVOLVING LOW DIESEL GENERATOR VOLTAGE   |
|                                                                              |
| The licensee determined that voltage for the 'B' emergency diesel generator  |
| would not have met the technical specification criteria, and this rendered   |
| the 'B' emergency diesel generator inoperable approximately 32 days prior to |
| 08/05/99.  Although the voltage was discovered to be low during a test run   |
| of the 'B' emergency diesel generator on 08/05/99, it was thought to be      |
| acceptable (satisfactory) at the time of the test run.  However, subsequent  |
| engineering review determined that the voltage was in fact below the         |
| technical specification (TS) acceptance criteria.                            |
|                                                                              |
| The licensee determined this event to be reportable at 1353 on 08/11/99.     |
|                                                                              |
| The licensee notified the NRC resident inspector.                            |
|                                                                              |
| ******************** UPDATE AT 1435 ON 08/17/99 FROM STEPHEN BAKER TO        |
| TROCINE ********************                                                 |
|                                                                              |
| The following text is a portion of a facsimile received from the licensee:   |
|                                                                              |
| "Condition Report M2-99-2179[, 'B' Emergency Diesel Generator Slow Start Did |
| Not Meet TS Acceptance Criteria,'] was written when it was identified that   |
| the output voltage for the "B" emergency diesel generator (EDG) did not meet |
| the TS acceptance criteria, potentially rendering the diesel inoperable."    |
|                                                                              |
| "The original reportability determination for this condition concluded that  |
| this condition was reportable under 10CFR 50.73(a)(2)(i), Technical          |
| Specifications, and 10CFR50.72(b)(1)(ii), Outside Design Basis, based upon   |
| initial investigation of the deficiency.  Accordingly, a prompt report was   |
| issued on 08/11/99 per                                                       |
| 10CFR50.72(b)(1)(ii)."                                                       |
|                                                                              |
| "Upon further investigation of this condition it was determined that while   |
| the voltage requirements of the applicable surveillance procedure were not   |
| met, the requirements of [TS] Surveillance Requirement 4.8.1.1.2.a.2 were    |
| met.  Additionally, it was discovered that the output voltage was set        |
| sufficiently high during the previous month's surveillance such that the EDG |
| would have loaded properly and performed its required safety function(s)     |
| during the period in question."                                              |
|                                                                              |
| "Therefore, this condition is NOT reportable under the requirements of       |
| 10CFR50.73(5)(2)(i), Technical Specifications, or 10CFR50.72(b)(1)(ii),      |
| Outside Design Basis, and it is recommended that the associated prompt       |
| report be retracted."                                                        |
|                                                                              |
| "Based on the above discussion, this is not a condition which is adverse to  |
| safety.  This deficiency was reviewed against the requirements of            |
| 10CFR50.72, 10CFR50.73, [and] 10CFR50.9(b), and [it was] determined to be    |
| not reportable."                                                             |
|                                                                              |
| The licensee notified the NRC resident inspector.  The NRC operations        |
| officer notified the R1DO (Eselgroth).                                       |
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