Event Notification Report for July 7, 2000

                    U.S. Nuclear Regulatory Commission
                              Operations Center

                              Event Reports For
                           07/06/2000 - 07/07/2000

                              ** EVENT NUMBERS **

37148  

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|Power Reactor                                    |Event Number:   37148       |
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| FACILITY: DRESDEN                  REGION:  3  |NOTIFICATION DATE: 07/07/2000|
|    UNIT:  [] [2] [3]                STATE:  IL |NOTIFICATION TIME: 05:18[EDT]|
|   RXTYPE: [1] GE-1,[2] GE-3,[3] GE-3           |EVENT DATE:        07/07/2000|
+------------------------------------------------+EVENT TIME:        02:05[CDT]|
| NRC NOTIFIED BY:  DAVID THRONE                 |LAST UPDATE DATE:  07/07/2000|
|  HQ OPS OFFICER:  STEVE SANDIN                 +-----------------------------+
+------------------------------------------------+PERSON          ORGANIZATION |
|EMERGENCY CLASS:          N/A                   |MICHAEL JORDAN       R3      |
|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  |
|3     N          Y       100      Power Operation  |100      Power Operation  |
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                                   EVENT TEXT                                   
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| MAIN CONTROL ROOM HVAC EMERGENCY VENTILATION DECLARED INOPERABLE             |
|                                                                              |
| "During performance of scheduled monthly surveillance testing, it was        |
| determined that overall differential pressure on the Main Control Room HVAC  |
| Emergency Ventilation Train Air Filtration Unit (AFU) was out of             |
| specification high. The AFU is a single train system required to provide     |
| habitable conditions for control room personnel during design basis accident |
| conditions. This condition is reportable under the requirements of SAF 1.17  |
| 'Could alone have prevented safety function.'  and 10CFR50.72(b). This       |
| condition places both Units in a 7 day shutdown LCO."                        |
|                                                                              |
| The licensee will inform the NRC Resident Inspector.                         |
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