U.S. Nuclear Regulatory Commission Operations Center Event Reports For 09/24/98 - 09/25/98 ** EVENT NUMBERS ** 34828 34829 34830 34831 34832 34833 +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 34828 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: TURKEY POINT REGION: 2 |NOTIFICATION DATE: 09/24/98 | |UNIT: [3] [4] [ ] STATE: FL |NOTIFICATION TIME: 05:26 [ET]| |RX TYPE: [3] W-3-LP,[4] W-3-LP |EVENT DATE: 09/24/98 | +------------------------------------------------+EVENT TIME: 05:06[EDT]| |NRC NOTIFIED BY: FRED PARKS |LAST UPDATE DATE: 09/24/98 | |HQ OPS OFFICER: LEIGH TROCINE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: UNUSUAL EVENT +-----------------------------+ |10 CFR SECTION: |JOHN ZEILER RDO | |AAEC 50.72(a)(1)(i) EMERGENCY DECLARED |CECIL THOMAS, NRR EO | |AEXT 50.72(b)(1)(iii) EXTERNAL THREAT |FRANK CONGEL, AEOD IRD | |ADEV 50.72(b)(1)(i)(B) DEVIATION FROM T SPEC |RALPH HERSKO FEMA | |DDDD 73.71 UNSPECIFIED PARAGRAPH | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 3 | N N 0 COLD SHUTDOWN | 0 COLD SHUTDOWN | | 4 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | DECLARATION OF AN UNUSUAL EVENT DUE TO ISSUANCE OF A HURRICANE WARNING BY | | THE NATIONAL HURRICANE CENTER | | | | THE FOLLOWING TEXT IS A PORTION OF A FACSIMILE RECEIVED FROM THE LICENSEE: | | | | "TURKEY POINT UNITS 3 AND 4 HAVE DECLARED AN UNUSUAL EVENT DUE TO A | | HURRICANE WARNING BEING ISSUED BY THE NATIONAL HURRICANE CENTER [LOCATED] | | IN MIAMI, FLORIDA. UNIT 3 SHUT DOWN ON MONDAY, SEPT. 21, FOR A REFUELING | | OUTAGE AND IS CURRENTLY IN MODE 5. OUTAGE WORK HAS BEEN STOPPED, AND | | PREPARATIONS ARE UNDERWAY FOR THE POTENTIAL ARRIVAL OF HURRICANE GEORGES. | | UNIT 4 IS IN MODE 1 AS THE SITE CONTINUES TO MONITOR THE TRACK OF THE | | STORM. SITE EMERGENCY FACILITIES HAVE NOT YET BEEN ACTIVATED; HOWEVER, | | PLANS HAVE BEEN COMPLETED FOR THE MANNING OF THESE FACILITIES. | | NOTIFICATION TO THE STATE OF FLORIDA HAS BEEN COMPLETED." | | | | THE LICENSEE STATED THAT THE SITE WAS NOTIFIED OF THE ISSUANCE OF THE | | HURRICANE WARNING AT APPROXIMATELY 0505, AND THE UNUSUAL EVENT WAS DECLARED | | AT 0506. | | | | THE LICENSE NOTIFIED APPLICABLE STATE AND LOCAL AGENCIES AND PLANS TO | | NOTIFY THE NRC RESIDENT INSPECTOR. | | | | HOO NOTE: FOR CATEGORY 1 OR 2 HURRICANES; THE LICENSEE'S PROCEDURES | | REQUIRE UNITS OPERATING IN MODES 1, 2, OR 3 TO BE PLACED IN | | MODE 3 (HOT STANDBY) WITHIN 2 HOURS OF THE PROJECTED ONSET OF | | SUSTAINED HURRICANE FORCE WINDS (75 mph) AT THE SITE. FOR | | CATEGORY 3, 4, AND 5 HURRICANES, THE LICENSEE'S PROCEDURES | | REQUIRE UNITS OPERATING IN MODES 1, 2, OR 3 TO BE PLACED IN | | MODE 4 (HOT SHUTDOWN) WITHIN 2 HOURS OF THE PROJECTED ONSET OF | | SUSTAINED HURRICANE FORCE WINDS AT THE SITE. HURRICANE GEORGES | | IS CURRENTLY A CATEGORY 1 STORM WITH SUSTAINED WINDS OF 75 mph | | AND PEAK GUSTS OF 90 mph. AT THIS TIME, THIS HURRICANE IS | | EXPECTED TO STRENGTHEN, BUT IT IS NOT EXPECTED TO BECOME GREATER | | THAN A CATEGORY 2 STORM PRIOR TO THE ARRIVAL OF SUSTAINED | | HURRICANE FORCE WINDS ONSITE. | | | | * * * UPDATE AT 1400 ON 09/24/98 BY JOLLIFFE * * * | | | | A COMMISSIONERS' ASSISTANTS BRIEFING WAS CONDUCTED AT 1400 ON 09/24/98 TO | | DISCUSS ISSUES RELATING TO HURRICANE GEORGES. THE FOLLOWING INDIVIDUALS | | WERE NOTIFIED OF THE BRIEFING (* OFFICE DID NOT PARTICIPATE): AEOD (*FRANK | | CONGEL), AEOD IRD (STUART RUBIN AND THOMAS MCKENNA), CHAIRMAN JACKSON (MARK | | MILLER), COMMISSIONER DIAZ (ROGER DAVIS AND PAT CASTLEMAN), COMMISSIONER | | McGAFFIGAN (JIM BEALL), EDO (SCOTT BARBER), DEDE (*JOCELYN MITCHELL), NRR | | EO (JOHN STOLZ), NRR PROJECTS (FRED HEBDON AND *KAHTAN JABBOUR), NMSS EO | | (FRED COMBS), R2DO (*JOHN ZEILER), REGION 2 (LEN WERT, et.al.), PAO | | (WILLIAM BEECHER), CAO (LINDA PORTNER), SECY (ANDREW BATES), SP (ROSETTA | | VIRGILIO), AND IP (RON HAUBER). | | | | * * * UPDATE AT 2043 ON 09/24/98 FROM D. HENRY TAKEN BY STRANSKY * * * | | | | THE LICENSEE IS CURRENTLY REDUCING UNIT 4 REACTOR POWER TO 50% IN | | ANTICIPATION OF THE HURRICANE. | | | | THE NRC RESIDENT INSPECTOR HAS BEEN INFORMED BY THE LICENSEE. THE NRC | | OPERATIONS OFFICER NOTIFIED THE REGION 2 INCIDENT RESPONSE CENTER (R2IRC) | | (HUFHAM). | | | | * * * UPDATE AT 2228 ON 09/24/98 FROM D. HENRY TAKEN BY STRANSKY * * * | | | | THE LICENSEE RELAYED THE FOLLOWING STATEMENT: | | | | "AS SQUALL LINES PASS THROUGH THE AREA, PERIODIC TORNADO WARNINGS ARE | | ISSUED BY THE NATIONAL WEATHER SERVICE FOR VARIOUS SECTIONS OF MIAMI/DADE | | COUNTY." | | | | * * * UPDATE AT 2250 ON 09/24/98 FROM CRAIG MOWRY TAKEN BY STRANSKY * * * | | | | DUE TO THE PROXIMITY OF HURRICANE GEORGES AND THE RESULTANT POTENTIAL FOR | | LIGHTNING STRIKES AND TORNADOS, SAFEGUARDS MEASURES PURSUANT TO 10CFR73.55, | | REQUIRING A PROTECTED AREA PERIMETER INTRUSION DETECTION SYSTEM, WILL BE | | SUSPENDED UNDER THE PROVISIONS OF 10CFR50.54(x). SPECIFICALLY, AS SQUALLS | | PASS THROUGH THE AREA, COMPENSATORY POSTS FOR ONE OR MORE FAILED PORTIONS | | OF THE PERIMETER INTRUSION DETECTION SYSTEM MAY BE TEMPORARILY SUSPENDED. | | AS SOON AS WEATHER PERMITS, FAILED PORTIONS WILL BE RESTORED OR POSTS | | REESTABLISHED. EACH INDIVIDUAL POST WILL BE LOGGED AS IT IS POSTED, | | REMOVED, OR REPOSTED. REMAINING PORTIONS OF THE PERIMETER WILL BE | | MONITORED BY CAMERA TO THE EXTENT POSSIBLE. THIS SUSPENSION IS REPORTED IN | | ACCORDANCE WITH 10 CFR PART 73, APPENDIX G.1(c). | | | | THE LICENSEE HAS INFORMED THE NRC RESIDENT INSPECTOR. THE NRC OPERATIONS | | OFFICER NOTIFIED THE R2IRC (HUFHAM) AND R2DO/IAT (BELISLE). | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 34829 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: SALEM REGION: 1 |NOTIFICATION DATE: 09/24/98 | |UNIT: [ ] [2] [ ] STATE: NJ |NOTIFICATION TIME: 16:21 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 09/24/98 | +------------------------------------------------+EVENT TIME: 15:30[EDT]| |NRC NOTIFIED BY: PETE JONES |LAST UPDATE DATE: 09/24/98 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |MOHAMED SHANBAKY RDO | |AOUT 50.72(b)(1)(ii)(B) OUTSIDE DESIGN BASIS | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | CHANNEL SEPARATION NOT MAINTAINED DURING TEST PROCEDURE. | | | | DURING A REVIEW OF THE INSTRUMENTATION TEST SETUP FOR THE COLLECTION OF | | STATE POINT DATA ON UNIT 2, THE LICENSEE DETERMINED THAT THE TEST SETUP | | DOES NOT MEET THE CHANNEL SEPARATION REQUIREMENTS OF IEEE 279-1971, SECTION | | 4.6, "CHANNEL INDEPENDENCE." SECTION 7.1.1 OF THE SALEM UPDATED FINAL | | SAFETY ANALYSIS REPORT (UFSAR) STATES THAT THE DESIGN OF THE REACTOR TRIP | | SYSTEM CONFORMS TO IEEE STANDARD 279-1971. CONTRARY TO THIS REQUIREMENT, | | TWO OR MORE REACTOR PROTECTION CHANNELS WERE ROUTED TO A SINGLE | | NONSAFETY-RELATED SWITCHING BOX WITHOUT ADEQUATE SIGNAL ISOLATION BETWEEN | | THE CHANNELS DURING PERFORMANCE OF STATE POINT DATA COLLECTION IN | | ACCORDANCE WITH APPROVED STATION PROCEDURES. | | | | SECTION 7.1.2.2.2 OF THE UFSAR STATES THAT "REDUNDANT ANALOG EQUIPMENT IS | | SEPARATED BY LOCATING MODULES IN DIFFERENT PROTECTION RACKS." IN ADDITION, | | SECTION 7.1.2.5 OF THE UFSAR, "CONFORMANCE TO IEEE STANDARD 344-1971," | | STATES THAT THE "PROTECTION SYSTEM HAS BEEN DESIGNED AND QUALIFIED TO | | ASSURE ITS CAPABILITY TO INITIATE PROTECTIVE ACTION DURING THE DESIGN BASIS | | EARTHQUAKE." SINCE THE TEST SETUP DID NOT MEET THE ABOVE REQUIREMENTS, THE | | PLANT WAS OPERATED IN A CONDITION OUTSIDE THE DESIGN BASIS WHEN DATA | | COLLECTION WAS IN PROGRESS. | | | | THE LICENSEE HAS PLACED THE AFFECTED PROCEDURES ON ADMINISTRATIVE HOLD | | PENDING A COMPLETE INVESTIGATION OF THE ISSUE. THE LICENSEE REPORTED THAT | | THESE PROCEDURES HAD BEEN USED FOR DATA COLLECTION ON BOTH UNITS IN THE | | PAST. | | | | THE NRC RESIDENT INSPECTOR HAS BEEN INFORMED BY THE LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 34830 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: FT CALHOUN REGION: 4 |NOTIFICATION DATE: 09/24/98 | |UNIT: [1] [ ] [ ] STATE: NE |NOTIFICATION TIME: 21:09 [ET]| |RX TYPE: [1] CE |EVENT DATE: 09/24/98 | +------------------------------------------------+EVENT TIME: 19:43[CDT]| |NRC NOTIFIED BY: ERICK MATZKE |LAST UPDATE DATE: 09/24/98 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |ELMO COLLINS RDO | |AOUT 50.72(b)(1)(ii)(B) OUTSIDE DESIGN BASIS | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | POST-LOCA CONTROL ROOM DOSE RATE COULD EXCEED GENERAL DESIGN CRITERION 19. | | | | DURING A COMPREHENSIVE REVIEW OF THE RADIOLOGICAL CONSEQUENCES ANALYSIS | | PROGRAM, THE LICENSEE DISCOVERED THAT THE UPDATED SAFETY ANALYSIS REPORT | | (USAR) DOCUMENTS A CONDITION THAT APPEARS TO BE OUTSIDE OF THE DESIGN BASIS | | OF THE PLANT. THE DESIGN BASIS FOR THE CONTROL ROOM POST-LOCA WHOLE BODY | | DOSE IS GENERAL DESIGN CRITERION (GDC) 19, WHICH IMPOSES A LIMIT OF 5 REM | | WHOLE BODY EXPOSURE TO THE CONTROL ROOM OPERATORS OVER A 30-DAY PERIOD. THE | | USAR DOCUMENTS WHOLE BODY DOSE RATES INSIDE A FAIRLY SMALL, NONCRITICAL | | PORTION OF THE CONTROL ROOM ENVELOPE (WITHIN SIX FEET OF THE EAST DOORS TO | | THE CONTROL ROOM) WHICH ARE CALCULATED TO EXCEED THE GDC LIMIT. THE CHANGE | | TO THE USAR THAT DOCUMENTED THIS INFORMATION WAS MADE IN 1990-1991. | | | | THE DOSE CONSEQUENCES ARE SENSITIVE TO FUEL BURNUP. THE PLANT IS STILL | | EARLY IN THE OPERATING CYCLE, AND CORE BURNUP IS WELL BELOW THE BURNUP THAT | | WAS ASSUMED IN THE USAR CALCULATIONS. BASED UPON THE LOW BURNUP, THE | | LICENSEE HAS A HIGH DEGREE OF CONFIDENCE THAT, AT THIS TIME, THE SOURCE | | TERM WILL NOT PRODUCE DOSES THAT EXCEED THE GDC LIMIT. THEREFORE, THE | | CONTROL ROOM IS CURRENTLY ABLE TO MEET ITS SAFETY FUNCTIONS WITHOUT | | ADDITIONAL RESTRICTION. | | | | PLANT ENGINEERING STAFF PLANS TO PERFORM THE NECESSARY CALCULATIONS WHICH | | ARE INTENDED TO SHOW THAT THE CONTROL ROOM WILL MEET ITS REQUIRED SAFETY | | FUNCTIONS THROUGHOUT THE OPERATING CYCLE. | | | | THE NRC RESIDENT INSPECTOR HAS BEEN INFORMED BY THE LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 34831 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: HATCH REGION: 2 |NOTIFICATION DATE: 09/24/98 | |UNIT: [ ] [2] [ ] STATE: GA |NOTIFICATION TIME: 21:48 [ET]| |RX TYPE: [1] GE-4,[2] GE-4 |EVENT DATE: 09/23/98 | +------------------------------------------------+EVENT TIME: 00:45[EDT]| |NRC NOTIFIED BY: BRUCE BUTLER |LAST UPDATE DATE: 09/24/98 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |AL BELISLE RDO | |ARPS 50.72(b)(2)(ii) RPS ACTUATION | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | 2 | A N 0 REFUELING | 0 REFUELING | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | AUTOMATIC REACTOR SCRAM WITHOUT ROD MOVEMENT DUE TO LOSS OF AIR PRESSURE | | | | AN AUTOMATIC REACTOR SCRAM SIGNAL OCCURRED DUE TO HIGH SCRAM DISCHARGE | | VOLUME LEVEL CAUSED BY A LOSS OF SCRAM PILOT AIR HEADER PRESSURE. AS AIR | | HEADER PRESSURE DECREASED, SCRAM INLET AND OUTLET VALVES OPENED, AND THE | | SCRAM DISCHARGE VOLUME VENT AND DRAIN VALVES CLOSED. THE LICENSEE REPORTED | | THAT THE CONTROL ROD DRIVE PUMPS WERE OUT OF SERVICE AT THE TIME OF THE | | EVENT AND THAT MOST CONTROL RODS WERE ALREADY COMPLETELY INSERTED, EXCEPT | | FOR SEVERAL THAT WERE WITHDRAWN AND VALVED OUT FOR MAINTENANCE. | | | | FOLLOWING THE EVENT, THE LICENSEE DISCOVERED THAT AN ISOLATION VALVE TO AN | | AIR PRESSURE REGULATOR (VALVE 2C11-F031A) WAS CLOSED, CAUSING THE LOSS OF | | AIR PRESSURE. THE LICENSEE PLANS TO INVESTIGATE THE CAUSE OF THE VALVE | | CLOSURE. | | | | THE NRC RESIDENT INSPECTOR HAS BEEN INFORMED BY THE LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 34832 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: SOUTH TEXAS REGION: 4 |NOTIFICATION DATE: 09/24/98 | |UNIT: [1] [ ] [ ] STATE: TX |NOTIFICATION TIME: 22:39 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 09/24/98 | +------------------------------------------------+EVENT TIME: 17:12[CDT]| |NRC NOTIFIED BY: ROYCE BROWN |LAST UPDATE DATE: 09/24/98 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |ELMO COLLINS RDO | |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 OPERATING LICENSE NPF-76 | | | | TECHNICAL SPECIFICATION SURVEILLANCE REQUIREMENT 4.6.1.5 FOR PRIMARY | | CONTAINMENT AVERAGE AIR TEMPERATURE REQUIRES THAT "THE PRIMARY CONTAINMENT | | AVERAGE AIR TEMPERATURE SHALL BE THE ARITHMETIC AVERAGE OF A MINIMUM OF | | FOUR RCFC [REACTOR CONTAINMENT FAN COOLER] INLET TEMPERATURES AND SHALL BE | | DETERMINED AT LEAST ONCE PER 24 HOURS." ON 09/21/98 AND 09/22/98, DUE TO AN | | INTERMITTENT FAILURE, THE "12A" RCFC INLET TEMPERATURE CHANNEL WAS FAILED | | LOW ON AN OPERATING RCFC. THE LICENSEE LOGGED THE OTHER FIVE TEMPERATURES | | AND USED THEM TO DETERMINE THE PRIMARY CONTAINMENT AVERAGE AIR TEMPERATURE. | | HOWEVER, ONLY THREE OF THESE FIVE RCFCs WERE OPERATING, AND THE REMAINING | | TWO RCFCs WERE IDLE. | | | | ON 09/23/98, THE LICENSEE BEGAN A REVIEW OF WHETHER USAGE OF RCFC INLET | | TEMPERATURES FROM IDLE UNITS WAS APPROPRIATE FOR THIS CALCULATION. AT 1712 | | CDT ON 09/24/98, THE LICENSEE DETERMINED THAT TEMPERATURE INDICATIONS FROM | | IDLE RCFC UNITS DO NOT ACCURATELY REFLECT THE CONTAINMENT TEMPERATURE AND | | DO NOT APPEAR TO MEET THE INTENT OF TECHNICAL SPECIFICATIONS. THE LICENSEE | | IS REPORTING THIS EVENT IN ACCORDANCE WITH THE REQUIREMENTS OF NPF-76 | | SECTION 2.G AS A VIOLATION OF OPERATING LICENSE CONDITIONS IN THAT THE | | SURVEILLANCE TEST WAS NOT PERFORMED CORRECTLY. | | | | THE NRC RESIDENT INSPECTOR WILL BE INFORMED BY THE LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 34833 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: DAVIS BESSE REGION: 3 |NOTIFICATION DATE: 09/24/98 | |UNIT: [1] [ ] [ ] STATE: OH |NOTIFICATION TIME: 23:12 [ET]| |RX TYPE: [1] B&W-R-LP |EVENT DATE: 09/24/98 | +------------------------------------------------+EVENT TIME: 22:00[EDT]| |NRC NOTIFIED BY: LARRY MYERS |LAST UPDATE DATE: 09/24/98 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JAMES CREED RDO | |ARPS 50.72(b)(2)(ii) RPS ACTUATION | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | M/R Y 100 POWER OPERATION | 0 HOT STANDBY | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | MANUAL REACTOR TRIP AFTER MAIN FEEDWATER REGULATING VALVE CLOSED DURING | | TESTING | | | | OPERATORS MANUALLY TRIPPED THE UNIT FROM 100% POWER AFTER THE #1 STEAM | | GENERATOR MAIN FEEDWATER REGULATING VALVE CLOSED UNEXPECTEDLY DURING | | TESTING. ALL CONTROL RODS INSERTED COMPLETELY FOLLOWING THE TRIP. FOLLOWING | | THE TRIP, ONE MAIN STEAM SAFETY STUCK OPEN, BUT IT RESEATED AFTER SECONDARY | | SYSTEM PRESSURE WAS REDUCED. ALL OTHER SYSTEM FUNCTIONED AS EXPECTED. | | | | THE NRC RESIDENT INSPECTOR HAS BEEN INFORMED BY THE LICENSEE. | +------------------------------------------------------------------------------+