U.S. Nuclear Regulatory Commission Operations Center Event Reports For 07/22/96 - 07/23/96 ** EVENT NUMBERS ** 30770 30771 30772 30773 30774 +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30770 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: MCGUIRE REGION: 2 |NOTIFICATION DATE: 07/22/96 | |UNIT: [ ] [2] [ ] STATE: NC |NOTIFICATION TIME: 13:21 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 07/22/96 | +------------------------------------------------+EVENT TIME: 12:19[EDT]| |NRC NOTIFIED BY: THAD REAMES |LAST UPDATE DATE: 07/22/96 | |HQ OPS OFFICER: LEIGH TROCINE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |KENNETH P. BARR RDO | |AESF 50.72(b)(2)(ii) ESF ACTUATION | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | 2 | N Y 99 POWER OPERATION | 99 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | UNEXPECTED OPENING OF NUCLEAR SERVICE WATER SYSTEM VALVES DURING THE | | PERFORMANCE OF AN AUXILIARY SHUTDOWN PANEL CONTROLS VERIFICATION TEST | | | | WHILE PERFORMING PROCEDURE PT/2/A/4350/26E, AUXILIARY SHUTDOWN PANEL | | CONTROLS VERIFICATION FOR 'B' TRAIN COMPONENTS, THE OPERATOR CLOSED THE 'B' | | AUXILIARY FEEDWATER PUMP SUCTION VALVE. THIS RESULTED IN LOW PUMP SUCTION | | PRESSURE, AND THE NUCLEAR SERVICE WATER SYSTEM UNEXPECTEDLY ALIGNED TO THE | | AUXILIARY FEEDWATER PUMP SUCTION. DURING THE PERFORMANCE OF THIS PORTION | | OF THE PROCEDURE, THE 'B' AUXILIARY FEEDWATER PUMP WAS LOGGED INOPERABLE, | | BUT IT WAS CONSIDERED TO BE FUNCTIONAL. THE PUMP IS CURRENTLY CONSIDERED | | TO BE OPERABLE. | | | | NORMALLY, IF THE AUXILIARY FEEDWATER PUMP SUCTION VALVE IS CLOSED FOR A | | SHORT PERIOD OF TIME, THERE IS NOT A PROBLEM. IN THIS INSTANCE, HOWEVER, | | THE OPEN LIGHT WENT OUT WHEN THE AUXILIARY FEEDWATER PUMP SUCTION VALVE WAS | | CLOSED PER THE PROCEDURE, BUT THE CLOSED LIGHT DID NOT COME ON. AS A | | RESULT, THE OPERATOR CHANGED THE LIGHT BULB, AND APPARENTLY, THE VALVE WAS | | CLOSED FOR APPROXIMATELY ONE MINUTE. THE LICENSEE SPECULATED THAT THIS MAY | | HAVE BEEN A LONG ENOUGH PERIOD OF TIME FOR THE SYSTEM PRESSURE TO DECREASE | | ENOUGH TO CAUSE THE NUCLEAR SERVICE WATER SYSTEM VALVES TO AUTOMATICALLY | | OPEN. WHEN SUCTION PRESSURE IS LOW FOR THREE SECONDS, THE NUCLEAR SERVICE | | WATER SYSTEM VALVES ARE DESIGNED TO AUTOMATICALLY OPEN IN ORDER TO PROVIDE | | ASSURED MAKEUP FLOW TO THE AUXILIARY FEEDWATER SYSTEM. THE LICENSEE ALSO | | BELIEVED THAT THIS WAS THE FIRST TIME THAT THIS PROCEDURE HAD BEEN | | PERFORMED WHILE THE UNIT WAS IN POWER OPERATIONS. | | | | THE LICENSEE PLANS TO NOTIFY THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30771 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: INDIAN POINT REGION: 1 |NOTIFICATION DATE: 07/22/96 | |UNIT: [ ] [3] [ ] STATE: NY |NOTIFICATION TIME: 15:18 [ET]| |RX TYPE: [2] W-4-LP,[3] W-4-LP |EVENT DATE: 07/22/96 | +------------------------------------------------+EVENT TIME: 14:29[EDT]| |NRC NOTIFIED BY: THOMAS McKEE |LAST UPDATE DATE: 07/22/96 | |HQ OPS OFFICER: LEIGH TROCINE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JOHN MCFADDEN RDO | |ASHU 50.72(b)(1)(i)(A) PLANT S/D REQD BY TS | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | 3 | N Y 100 POWER OPERATION | 74 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | TECHNICAL SPECIFICATION REQUIRED SHUTDOWN DUE TO INOPERABILITY OF A | | CONTAINMENT SPRAY SYSTEM VALVE | | | | VALVE SI-AOV-876B (ONE OF THE TWO PARALLEL AIR-OPERATED ISOLATION VALVES ON | | THE CONTAINMENT SPRAY SYSTEM LINE BETWEEN THE SPRAY ADDITIVE TANK AND THE | | SPRAY ADDITIVE EDUCTORS) WAS DECLARED INOPERABLE AT 1429 ON JULY 21, 1996, | | BECAUSE THE VALVE DIAPHRAGM DEVELOPED A LEAK, AND THE NORMALLY CLOSED VALVE | | DRIFTED OPEN. WHILE PROCEEDING WITH POST-MAINTENANCE TESTING OF THE | | REPAIRED DIAPHRAGM, THE SOLENOID TO THE AIR ACTUATOR WAS IDENTIFIED AS | | DEGRADED SO THAT IT PRECLUDED VALVE SI-AOV-876B FROM OPENING FULLY UPON | | DEMAND. REPAIRS TO THE SOLENOID COULD NOT BE COMPLETED WITHIN THE 24-HOUR | | LIMITING CONDITION FOR OPERATION TIME FRAME SPECIFIED IN TECHNICAL | | SPECIFICATION 3.3.B.2.C. AS A RESULT, A UNIT 3 SHUTDOWN WAS COMMENCED AT | | 1429 ON JULY 22, 1996, IN ACCORDANCE WITH TECHNICAL SPECIFICATION 3.3.B.3.A | | WHICH REQUIRES THE REACTOR, IF CRITICAL, TO BE PLACED IN THE HOT SHUTDOWN | | CONDITION WITHIN 4 HOURS AND IN THE COLD SHUTDOWN CONDITION WITHIN THE | | FOLLOWING 24 HOURS WHEN THE TIME PERIODS SPECIFIED IN TECHNICAL | | SPECIFICATION 3.3.B.2 ARE NOT MET. | | | | REPAIRS TO THE VALVE ARE EXPECTED TO BE COMPLETED BY 1530 TODAY. IF THE | | VALVE REPAIRS ARE COMPLETED AND THE VALVE IS SATISFACTORILY TESTED PRIOR TO | | THE END OF THE 4-HOUR TIME PERIOD ALLOWED BY TECHNICAL SPECIFICATION | | 3.3.B.3.A, THE LICENSEE PLANS TO RESTORE THE UNIT TO RATED POWER. | | | | THE LICENSEE NOTIFIED THE NRC RESIDENT INSPECTOR. | | | | * * * 1731 JULY 22, 1996, UPDATE FROM McKEE RECEIVED BY TROCINE * * * | | | | THE REPAIRS AND TESTING OF VALVE SI-AOV-876B WERE COMPLETED SATISFACTORILY, | | AND THE VALVE WAS DECLARED OPERABLE AT 1636. AS A RESULT, THE UNIT | | SHUTDOWN WAS TERMINATED WITH THE UNIT AT 71% POWER, AND A POWER ASCENSION | | WAS COMMENCED AT 1651. | | | | THE LICENSEE PLANS TO NOTIFY THE NRC RESIDENT INSPECTOR. THE NRC | | OPERATIONS CENTER NOTIFIED THE R1DO (McFADDEN). | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30772 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: HADDAM NECK REGION: 1 |NOTIFICATION DATE: 07/22/96 | |UNIT: [1] [ ] [ ] STATE: CT |NOTIFICATION TIME: 18:29 [ET]| |RX TYPE: [1] W-4-LP |EVENT DATE: 07/22/96 | +------------------------------------------------+EVENT TIME: 18:20[EDT]| |NRC NOTIFIED BY: RICHARD WILLIS |LAST UPDATE DATE: 07/22/96 | |HQ OPS OFFICER: LEIGH TROCINE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JOHN MCFADDEN RDO | |ASHU 50.72(b)(1)(i)(A) PLANT S/D REQD BY TS | | |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 | 99 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | TECHNICAL SPECIFICATION SHUTDOWN DUE TO INOPERABILITY OF ALL FOUR | | CONTAINMENT AIR RECIRCULATION FANS | | | | PRELIMINARY ENGINEERING ANALYSIS SHOWS THAT IN THE EVENT OF A LOSS OF | | COOLANT ACCIDENT WITH A LOSS OF OFFSITE POWER, THE SERVICE WATER AT THE | | INLET OF THE CONTAINMENT AIR RECIRCULATION FAN COOLERS WILL REACH | | SATURATION. WHEN THE SERVICE WATER PUMPS RESTART, A WATER HAMMER WILL | | OCCUR WHICH WILL EXCEED THE SEISMIC QUALIFICATION OF THIS PIPING. AS A | | RESULT, ALL FOUR CONTAINMENT AIR RECIRCULATION FANS HAVE BEEN DECLARED | | INOPERABLE. THIS PLACES THE UNIT IN TECHNICAL SPECIFICATION 3.0.3 WHICH | | REQUIRES A PLANT SHUTDOWN, AND A SHUTDOWN HAS BEEN COMMENCED. | | | | THE LICENSEE CURRENTLY PLANS TO PLACE THE UNIT IN A COLD SHUTDOWN CONDITION | | UNTIL THIS ISSUE CAN BE RESOLVED. | | | | THE LICENSEE NOTIFIED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30773 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: MILLSTONE REGION: 1 |NOTIFICATION DATE: 07/22/96 | |UNIT: [ ] [ ] [3] STATE: CT |NOTIFICATION TIME: 18:44 [ET]| |RX TYPE: [1] GE-3,[2] CE,[3] W-4-LP |EVENT DATE: 07/22/96 | +------------------------------------------------+EVENT TIME: 18:36[EDT]| |NRC NOTIFIED BY: JOE RUTTAR |LAST UPDATE DATE: 07/22/96 | |HQ OPS OFFICER: LEIGH TROCINE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JOHN MCFADDEN 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 | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | | | | | 3 | N N 0 COLD SHUTDOWN | 0 COLD SHUTDOWN | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | HISTORICAL SEISMIC ISSUE INVOLVING LATCHES ON THE EMERGENCY DIESEL | | GENERATOR CONTROL PANEL DOORS (REFER TO EVENT #30650 FOR INFORMATION | | INVOLVING A SIMILAR EVENT AT THIS SITE.) | | | | THE CONTROL PANEL DOORS FOR THE EMERGENCY DIESEL GENERATORS WERE IDENTIFIED | | TO BE UNLATCHED, AND SOME LATCHES WERE BROKEN. THE LICENSEE SUBSEQUENTLY | | DETERMINED THAT THESE LATCHES WERE PART OF THE SEISMIC REQUIREMENTS FOR THE | | PANEL DOORS THEMSELVES. AS A RESULT, BOTH EMERGENCY DIESEL GENERATORS | | WOULD NOT HAVE MET THEIR DESIGN BASIS. | | | | A SIMILAR EVENT (#30650) INVOLVING SWITCHGEAR CABINETS WAS REPORTED ON JUNE | | 19, 1996. SUBSEQUENT PLANT WALKDOWNS RESULTED IN THE DISCOVERY OF THE | | CURRENT ISSUE, AND BOTH EMERGENCY DIESEL GENERATORS WERE DECLARED | | INOPERABLE ON JUNE 24, 1996. THE LICENSEE IMMEDIATELY RE-LATCHED THE | | CONTROL PANEL DOORS FOR ONE OF THE TWO EMERGENCY DIESEL GENERATORS, AND | | THIS EMERGENCY DIESEL GENERATOR WAS RETURNED TO SERVICE. (WITH THE UNIT IN | | COLD SHUTDOWN, ONLY ONE EMERGENCY DIESEL GENERATOR IS REQUIRED TO BE | | OPERABLE.) THE REMAINING LATCHES WERE BROKEN AND HAVE SINCE BEEN REPAIRED. | | AT 1836 ON JULY 22, 1996, THE LICENSEE DETERMINED THAT THIS WAS A SEISMIC | | ISSUE. (THESE PANELS HAVE A DIFFERENT TYPE OF LATCH THAN WAS ON THE | | SWITCHGEAR CABINETS.) | | | | THE LICENSEE PLANS TO NOTIFY THE NRC RESIDENT INSPECTOR AND THE APPLICABLE | | STATE AND LOCAL AGENCIES. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |GENERAL INFORMATION or OTHER | |EVENT NUMBER: 30774 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: QUANEX CORPORATION |NOTIFICATION DATE: 07/22/96 | | CITY: ROSENBERG REGION: 4 |NOTIFICATION TIME: 18:45 [ET]| | COUNTY: STATE: TX |EVENT DATE: 05/24/96 | |LICENSE#: AGREEMENT: Y |EVENT TIME: 00:00[CDT]| | DOCKET: |LAST UPDATE DATE: 07/22/96 | | +-----------------------------+ | |PERSON ORGANIZATION| | | | | | | +------------------------------------------------+VERN HODGE, NRR PCEB | |NRC NOTIFIED BY: DONALD L. MURRAY | | |HQ OPS OFFICER: LEIGH TROCINE | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |CDEG 21.21(c)(3)(i) DEFECTS/NONCOMPLIANCE | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | QUANEX CORPORATION INTERIM 10 CFR PART 21 REPORT OF A DEVIATION EVALUATION | | INVOLVING A MIX IN MATERIAL SPECIFICATIONS (SA-106 GRADE B VERSUS A-333 | | P22) | | | | QUANEX CORPORATION GULF STATES TUBE DIVISION SUBMITTED AN INTERIM REPORT TO | | DOCUMENT THE EVALUATION OF AN ONGOING INVESTIGATION INVOLVING 3/4-INCH, | | SCHEDULE-80, ASME, SA-106, GRADE-B PIPE ON MILL ORDER #74229 WHICH WAS | | FURNISHED TO CONSOLIDATED POWER SUPPLY (CPS) AGAINST PO S65-46324. DURING | | ROUTINE TESTING, CPS FOUND THAT ONE TUBE WAS MARKED AS SA-106 GRADE B, AND | | IT WAS ACTUALLY A335 P22. THIS WAS SUBSEQUENTLY VERIFIED BY THE QUANEX | | GULF STATES TUBE DIVISION ON A SAMPLE PROVIDED BY CPS. | | | | THE QUANEX INVESTIGATION REVEALED THAT CPS WAS THE ONLY NUCLEAR CUSTOMER | | THAT WAS INVOLVED IN THE SALE OF THIS MATERIAL. CPS WAS NOTIFIED ON JUNE | | 14, 1996, TO RETURN THE MATERIAL FROM THIS ORDER. HOWEVER, QUANEX WAS | | UNABLE TO DETERMINE THAT THE DEFICIENCY WITH A MIX IN MATERIAL | | SPECIFICATIONS (SA-106 GRADE B VERSUS A-333 P22) WAS AN ISOLATED CASE | | RELATIVE TO THE ONE SHIPMENT TO CPS IN NOVEMBER 1994. CPS PROVIDED | | CORRESPONDENCE TO ALL AFFECTED CUSTOMERS WHO WERE SUPPLIED THE SUBJECT | | MATERIAL AS ASME CODE AND/OR SAFETY RELATED, AND CPS VERIFIED RECEIPT OF | | THIS CORRESPONDENCE ON JUNE 21, 1996. CPS NOTIFICATIONS WERE SENT TO THE | | FOLLOWING CUSTOMERS: CAPITAL MANUFACTURING, INDIAN POINT 3, SEQUOYAH, | | VALCOR ENGINEERING, S. Y. TRADING COMPANY, CALVERT CLIFFS, BEAVER VALLEY, | | DAVIS BESSE, COMANCHE PEAK, KEWAUNEE, BECHTEL (AS AGENT FOR GINNA), EDWARD | | VALVES, AND RIVER BEND. NOT ALL RECIPIENTS HAVE RESPONDED AT THIS TIME. IN | | ADDITION, NO CPS CUSTOMERS HAVE IDENTIFIED ANYTHING OTHER THAN SA-106 | | GRADE-B MATERIAL BEING INSTALLED. | +------------------------------------------------------------------------------+