U.S. Nuclear Regulatory Commission Operations Center Event Reports For 04/30/96 - 05/01/96 ** EVENT NUMBERS ** 30385 30386 30387 30388 30389 30390 30391 30392 30393 +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30385 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: OYSTER CREEK REGION: 1 |NOTIFICATION DATE: 04/30/96 | |UNIT: [1] [ ] [ ] STATE: NJ |NOTIFICATION TIME: 03:30 [ET]| |RX TYPE: [1] GE-2 |EVENT DATE: 04/30/96 | +------------------------------------------------+EVENT TIME: 02:55[EDT]| |NRC NOTIFIED BY: STEVE FULLER |LAST UPDATE DATE: 04/30/96 | |HQ OPS OFFICER: RUDY KARSCH +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |GENE KELLY 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 | A/R Y 10 STARTUP | 0 HOT SHUTDOWN | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | REACTOR SCRAM DUE TO LOW REACTOR VESSEL LEVEL. | | | | DURING THE PROCESS OF SWITCHING FEED WATER FLOW REGULATION FROM THE LOW | | FLOW VALVE TO THE MAIN FEED REGULATING VALVE FLOW DIMINISHED AND A LOW | | WATER LEVEL CONDITION OCCURRED. THE REACTOR VESSEL LEVEL REACHED THE LOW | | LEVEL SET POINT AND A REACTOR SCRAM OCCURRED. THE LOWEST LEVEL REACHED | | FOLLOWING THE SCRAM WAS 122 INCHES. VESSEL LEVEL WAS RESTORED WITH NORMAL | | FEED WATER. DECAY HEAT REMOVAL IS VIA THE MAIN CONDENSER. ONE CONTROL ROD | | DID NOT FULLY INSERT FOLLOWING THE TRIP. IT STOPPED AT STEP 02 AND WAS | | MANUALLY INSERTED THE REST OF THE WAY. THE LICENSEE INFORMED THE NRC | | RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30386 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: INDIAN POINT REGION: 1 |NOTIFICATION DATE: 04/30/96 | |UNIT: [2] [ ] [ ] STATE: NY |NOTIFICATION TIME: 10:50 [ET]| |RX TYPE: [2] W-4-LP,[3] W-4-LP |EVENT DATE: 04/30/96 | +------------------------------------------------+EVENT TIME: 09:55[EDT]| |NRC NOTIFIED BY: ED GOETCHIUS |LAST UPDATE DATE: 04/30/96 | |HQ OPS OFFICER: RUDY KARSCH +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |MICHAEL MODES RDO | |AARC 50.72(b)(1)(v) OTHER ASMT/COMM INOP | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | SIRENS INOPERABLE DUE TO FAILED REPEATER . | | | | THE LICENSEE WAS NOTIFIED THAT THE MOUNT BEACON REPEATER FAILED. THE | | BACK-UP REPEATER WAS PLACED INTO SERVICE, HOWEVER, SIX OF SIXTEEN SIRENS IN | | ORANGE COUNTY REMAIN INOPERABLE. THE COUNTY HAS ACTIVATED THEIR | | CONTINGENCY PLAN. OTHER COUNTIES ARE NOT AFFECTED. THE LICENSEE INFORMED | | THE NRC RESIDENT INSPECTOR. | | | | SEE EVENT 30388. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30387 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: HATCH REGION: 2 |NOTIFICATION DATE: 04/30/96 | |UNIT: [1] [ ] [ ] STATE: GA |NOTIFICATION TIME: 10:52 [ET]| |RX TYPE: [1] GE-4,[2] GE-4 |EVENT DATE: 04/30/96 | +------------------------------------------------+EVENT TIME: 08:41[EDT]| |NRC NOTIFIED BY: JAMES BARNES |LAST UPDATE DATE: 04/30/96 | |HQ OPS OFFICER: RUDY KARSCH +-----------------------------+ +------------------------------------------------+ 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 | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | A/R Y 10 STARTUP | 0 HOT SHUTDOWN | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE PLANT HAD A REACTOR SCRAM FROM 10% ON A HIGH REACTOR VESSEL PRESSURE | | SIGNAL. | | | | REACTOR SCRAM ON HIGH REACTOR VESSEL PRESSURE DUE TO SUDDEN CLOSURE OF THE | | TURBINE BYPASS VALVES. THE HIGHEST PRESSURE REACHED WAS 1080 PSI. THE | | BYPASS VALVES CLOSED DUE TO FAILURE OF THE EHC OIL PUMP. ALL CONTROL RODS | | INSERTED FULLY FOLLOWING THE SCRAM. THE LICENSEE INFORMED THE NRC RESIDENT | | INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30388 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: INDIAN POINT REGION: 1 |NOTIFICATION DATE: 04/30/96 | |UNIT: [ ] [3] [ ] STATE: NY |NOTIFICATION TIME: 11:12 [ET]| |RX TYPE: [2] W-4-LP,[3] W-4-LP |EVENT DATE: 04/30/96 | +------------------------------------------------+EVENT TIME: 09:55[EDT]| |NRC NOTIFIED BY: VINCENT DECLEMENTE |LAST UPDATE DATE: 04/30/96 | |HQ OPS OFFICER: RUDY KARSCH +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |MICHAEL MODES RDO | |AARC 50.72(b)(1)(v) OTHER ASMT/COMM INOP | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | 3 | N Y 99 POWER OPERATION | 99 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | EMERGENCY SIRENS INOPERABLE. | | | | AT 1018 EDT CON EDISON NOTIFIED THE PLANT THAT 16 SIRENS IN ORANGE COUNTY, | | NEW YORK BECAME INOPERABLE WHEN THE PRIMARY REPEATER FAILED. THE BACK-UP | | REPEATER CAN SUPPORT 10 SIRENS. SIX SIRENS REMAIN INOPERABLE. REPAIRS | | WERE INITIATED. THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | | | | SEE EVENT 30386. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30389 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: INDIAN POINT REGION: 1 |NOTIFICATION DATE: 04/30/96 | |UNIT: [2] [ ] [ ] STATE: NY |NOTIFICATION TIME: 12:00 [ET]| |RX TYPE: [2] W-4-LP,[3] W-4-LP |EVENT DATE: 04/30/96 | +------------------------------------------------+EVENT TIME: 09:55[EDT]| |NRC NOTIFIED BY: READY |LAST UPDATE DATE: 04/30/96 | |HQ OPS OFFICER: JOHN MacKINNON +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |MICHAEL MODES 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 | N Y 100 POWER OPERATION | 85 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | DURING A SURVEILLANCE TEST OF POWER RANGE CHANNEL N-41, ITS CONTROL POWER | | FUSE FAILED CAUSING A TURBINE RUNBACK TO 97% POWER. | | | | INSTRUMENT & CONTROL WERE PERFORMING SURVEILLANCE TEST PROCEDURE PPQ 51 | | (NUCLEAR POWER RANGE ANALOG) ON POWER RANGE CHANNEL N-41 WHEN ITS CONTROL | | POWER FUSE FAILED. FAILURE OF POWER RANGE CHANNEL N-41 CONTROL POWER FUSE | | CAUSED A TURBINE RUNBACK TO 97% POWER. LICENSEE EXPECTED THE TURBINE TO | | RUN BACK TO 85% POWER WITH THE LOSS OF POWER RANGE CHANNEL NI-41 (SAME AS A | | DROPPED ROD). LICENSEE ENTERED ABNORMAL OPERATING PROCEDURE 13.1.3 (POWER | | RANGE CHANNEL FAILURE) AND STABILIZED THE PLANT. AT 1150 EDT REACTOR POWER | | WAS MANUALLY REDUCED TO 85% POWER TO REMOVE POWER RANGE CHANNEL N-41 FROM | | SERVICE. AFTER REDUCING REACTOR POWER TO 85%, SURVEILLANCE TEST PROCEDURE | | PPQ 51 WAS EXITED. LICENSEE IS INVESTIGATING WHY POWER RANGE CHANNEL N-41 | | CONTROL POWER FUSE FAILED AND WHY THE TURBINE RAN BACK TO 97% POWER INSTEAD | | OF TO 85% POWER. | | | | RESIDENT INSPECTOR WAS INFORMED BY THE LICENSEE OF THIS EVENT. | | | | SEE EVENT # 30391 FOR ANOTHER TURBINE RUNBACK. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |GENERAL INFORMATION or OTHER | |EVENT NUMBER: 30390 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: TULSA GAMMA RAY INC. |NOTIFICATION DATE: 04/30/96 | | CITY: TULSA REGION: 4 |NOTIFICATION TIME: 14:20 [ET]| | COUNTY: TULSA STATE: OK |EVENT DATE: 04/30/96 | |LICENSE#: 35-171718-01 AGREEMENT: N |EVENT TIME: 07:15[CDT]| | DOCKET: |LAST UPDATE DATE: 04/30/96 | | +-----------------------------+ | |PERSON ORGANIZATION| | |PHIL HARRELL RDO | | |DON COOL (NMSS) EO | +------------------------------------------------+ | |NRC NOTIFIED BY: DAN POTTER | | |HQ OPS OFFICER: JOHN MacKINNON | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |IBBF 30.50(b)(2)(ii) EQUIP DISABLED/FAILS | | |CDEG 21.21(c)(3)(i) DEFECTS/NONCOMPLIANCE | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | WHILE TRYING TO OPEN AN EMPTY INDUSTRIAL EXPOSURE DEVICE USED FOR | | RADIOGRAPHY, THE KEY BROKE OFF IN THE LOCK. | | | | THE RADIATION SAFETY OFFICER FOR TULSA GAMMA RAY INC., 1127 S LEWIS AVE., | | TULSA, OK. REPORTED THE FOLLOWING EVENT. | | | | A KEY BROKE OFF IN THE LOCK OF AN AMERTEST MODEL # 660B (SERIAL # B2446) | | DEVICE WHICH DID NOT CONTAIN A SOURCE. WHILE THEY WERE TRYING REMOVE THE | | KEY, THE TIP OF THE SLIDE BAR BROKE ON THE POSITIVE LOCKING MECHANISM. THEY | | WILL SEND THE DEVICE TO AMERSHAM TO GET IT REPAIRED. | | | | A WRITTEN REPORT WILL BE SUBMITTED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30391 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: INDIAN POINT REGION: 1 |NOTIFICATION DATE: 04/30/96 | |UNIT: [2] [ ] [ ] STATE: NY |NOTIFICATION TIME: 17:22 [ET]| |RX TYPE: [2] W-4-LP,[3] W-4-LP |EVENT DATE: 04/30/96 | +------------------------------------------------+EVENT TIME: 15:40[EDT]| |NRC NOTIFIED BY: READY |LAST UPDATE DATE: 04/30/96 | |HQ OPS OFFICER: JOHN MacKINNON +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |MICHAEL MODES 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 | N Y 85 POWER OPERATION | 80 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | WHEN THE CONTROL POWER FUSES FOR POWER RANGE CHANNEL 41 WERE REMOVED | | LICENSEE RECEIVED AN UNEXPECTED TURBINE RUNBACK. | | | | FOLLOWING THE POWER RANGE CHANNEL 41 CONTROL POWER FUSE FAILURE, WHICH | | OCCURRED ON 04/30/96 AT 0955 EDT (SEE EVENT # 30389), POWER RANGE CHANNEL | | 41 WAS RETURNED TO SERVICE AT 1500 EDT. AT 1540 EDT, WHEN POWER RANGE | | CHANNEL 41 WAS BEING REMOVED FROM SERVICE TO ALLOW A POWER SUPPLY | | REPLACEMENT, A TURBINE RUNBACK TO 80% POWER OCCURRED. THE TURBINE RUNBACK | | OCCURRED WHEN INSTRUMENT AND CONTROL PERSONNEL REMOVED THE CONTROL POWER | | FUSES FOR POWER RANGE CHANNEL 41 PER SOP 13.1 (REMOVING POWER RANGE FROM | | SERVICE). AN INVESTIGATION IS UNDERWAY AS TO THE CAUSE OF THE TURBINE | | RUNBACK. FAILURE OF POWER RANGE CHANNEL 41 SHOULD HAVE CAUSED A TURBINE | | RUNBACK TO 85% POWER. | | | | RESIDENT INSPECTOR WAS INFORMED BY THE LICENSEE OF THIS EVENT. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30392 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: DAVIS BESSE REGION: 3 |NOTIFICATION DATE: 04/30/96 | |UNIT: [1] [ ] [ ] STATE: OH |NOTIFICATION TIME: 20:03 [ET]| |RX TYPE: [1] B&W-R-LP |EVENT DATE: 04/30/96 | +------------------------------------------------+EVENT TIME: 18:13[EDT]| |NRC NOTIFIED BY: S ROBERTS |LAST UPDATE DATE: 04/30/96 | |HQ OPS OFFICER: JOHN MacKINNON +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |MARK RING RDO | |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 N 0 REFUELING | 0 REFUELING | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | A PREREQUISITE WAS MISSED WHILE RESTORING NORMAL POWER LINEUP WHICH | | RESULTED IN THE LOSS OF POWER TO ESSENTIAL BUS "D1" CAUSING # 2 EMERGENCY | | DIESEL GENERATOR (EDG) TO START AND TIE ONTO THE BUS. | | | | LICENSEE HAD COMPLETED PERFORMING LOCKOUT TEST ON 13.8 KV SWITCHGEAR BUS | | "B" PER DB-SC-04024 ("B" BUS LOCKOUT TEST). AN OPERATOR MISSED A | | PREREQUISITE AND SIGNED OFF THAT ALL THE PREREQUISITES FOR DB-OP-06315 | | (4.16 KV SWITCHGEAR PROCEDURE) AS BEING MET FOR RESTORING BUSES "D2" & "D1" | | TO THEIR NORMAL POWER LINEUP. THE PREREQUISITE THAT WAS MISSED WAS TO | | VERIFY THAT 13.8/4.16 KV TRANSFORMER "BD" WAS REENERGIZED. WHEN THE | | ALTERNATE SUPPLY BREAKER TO NON ESSENTIAL BUS "D2" WAS OPENED, BUSES "D2" | | (NON ESSENTIAL) AND "D1" (ESSENTIAL) DEENERGIZED RESULTING IN THE AUTO | | START OF # 2 EDG ON AN UNDERVOLTAGE SIGNAL. # 2 EDG RE-ENERGIZED ESSENTIAL | | BUS "D1". THE CORE IS OFF LOADED AND THE SPENT FUEL POOL COOLING PUMPS DID | | NOT DEENERGIZE. LOSS OF NON ESSENTIAL BUS "D2" CAUSED A LOSS OF ONE HALF OF | | THE STATION LIGHTING. LICENSEE RESTORED NORMAL POWER TO BUSES "D2" & "D1" | | AND THEN SECURED # 2 EDG. | | | | RESIDENT INSPECTOR WAS INFORMED OF THIS EVENT BY THE LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30393 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: MILLSTONE REGION: 1 |NOTIFICATION DATE: 05/01/96 | |UNIT: [ ] [2] [ ] STATE: CT |NOTIFICATION TIME: 05:38 [ET]| |RX TYPE: [1] GE-3,[2] CE,[3] W-4-LP |EVENT DATE: 05/01/96 | +------------------------------------------------+EVENT TIME: 05:15[EDT]| |NRC NOTIFIED BY: S. BAKER |LAST UPDATE DATE: 05/01/96 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |MODES RDO | |AINC 50.72(b)(2)(iii)(C) POT UNCNTRL RAD REL | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | 2 | N N 0 COLD SHUTDOWN | 0 COLD SHUTDOWN | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | LICENSEE DISCOVERED HOLE IN AUXILIARY BUILDING WALL NEAR SPENT FUEL POOL | | | | THE LICENSEE DISCOVERED A 32x9" OPENING IN THE AUXILIARY BUILDING WALL NEAR | | THE SPENT FUEL POOL. THE HOLE, WHICH IS LOCATED AT THE JUNCTION OF TWO | | I-BEAMS, LEADS FROM A RADIOLOGICALLY CONTROLLED AREA (RCA) TO A NON-RCA. | | THE LICENSEE STATED THAT THE HOLE HAS EXISTED FOR QUITE SOME TIME, AND IS | | OBSCURED FROM VIEW BY A METAL PLATE WELDED ACROSS THE BEAMS. THE LICENSEE | | IS WAITING FOR FURTHER ENGINEERING ANALYSIS, AND HAS SUSPENDED FUEL | | MOVEMENT. | | | | THE NRC RESIDENT INSPECTOR HAS BEEN INFORMED BY THE LICENSEE. | +------------------------------------------------------------------------------+