Event Notification Report for May 15, 2001
U.S. Nuclear Regulatory Commission Operations Center Event Reports For 05/14/2001 - 05/15/2001 ** EVENT NUMBERS ** 37748 37839 37937 37971 37987 37988 +------------------------------------------------------------------------------+ |General Information or Other |Event Number: 37748 | +------------------------------------------------------------------------------+ +------------------------------------------------------------------------------+ | REP ORG: TEXAS DEPARTMENT OF HEALTH |NOTIFICATION DATE: 02/14/2001| |LICENSEE: DRASH CONSULTING ENGINEERS, INC. |NOTIFICATION TIME: 12:33[EST]| | CITY: HARLINGEN REGION: 4 |EVENT DATE: 01/01/2001| | COUNTY: STATE: TX |EVENT TIME: [CST]| |LICENSE#: TX L04724 AGREEMENT: Y |LAST UPDATE DATE: 05/14/2001| | DOCKET: |+----------------------------+ | |PERSON ORGANIZATION | | |GREG PICK R4 | | |JOHN HICKEY NMSS | +------------------------------------------------+ | | NRC NOTIFIED BY: HELEN WATKINS | | | HQ OPS OFFICER: FANGIE JONES | | +------------------------------------------------+ | |EMERGENCY CLASS: N/A | | |10 CFR SECTION: | | |NAGR AGREEMENT STATE | | | | | | | | | | | | | | +------------------------------------------------------------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | AGREEMENT STATE REPORT OF STOLEN HUMBOLDT GAUGE | | | | The following text is a portion of a facsimile received from the Texas | | Department of Health, Bureau of Radiation Control: | | | | "On Monday January 1, 2001, a moisture/density gauge was stolen from the | | back of a pickup truck that was parked at an apartment complex in Harlingen, | | Texas. The technician who had used the gauge went to his apartment from | | 10:00 am to 1:00 p.m. after completing work at one job site. When the | | technician was getting into his truck, he noticed the lid on the gauge | | transport case was cracked open and the gauge was missing. | | | | "The stolen gauge is a Humboldt Model 5001-C, serial number 1467. The gauge | | contained two sources: | | 10 millicuries of Cs-137, source serial No. 692GH, and 40 millicuries of | | Am-241:Be, source serial No. | | NJO1429. | | | | "The Licensee notified the Harlingen Police Department, this Agency, and the | | manufacturer. The Licensee placed an ad in a local newspaper offering a $500 | | reward for the return of the gauge." | | | | Call the NRC operations officer for contact information. | | | | ***** UPDATE RECEIVED AT 1606 EDT ON 05/14/01 FROM HELEN WATKINS TO LEIGH | | TROCINE ***** | | | | The following text is a portion of a facsimile received from the Texas | | Department of Health, Bureau of Radiation Control: | | | | "This is a followup report. The gauge was found and returned to the | | licensee." | | | | The following text is a portion of a letter provided to the Texas Department | | of Health by the licensee on 03/12/01: | | | | "[...] This gauge has been recovered. [...] The gauge was in good working | | order, and had not visibly been abused. The lock that keeps the source rod | | from being exposed was intact, and no visible signs of removal were visible. | | Upon transporting [the] gauge back to the laboratory[, ... ] a leak test | | [was performed,] and [the gauge was] sent [...] to SUNTRAC Services for | | [analysis. ... Less] than 0.0001 �Ci were found on Alpha, Beta, and Gamma | | rays. [...]" | | | | The NRC operations officer notified the R4 DO (Spitzberg) and NMSS EO | | (Reamer). | +------------------------------------------------------------------------------+ +------------------------------------------------------------------------------+ |Power Reactor |Event Number: 37839 | +------------------------------------------------------------------------------+ +------------------------------------------------------------------------------+ | FACILITY: SUSQUEHANNA REGION: 1 |NOTIFICATION DATE: 03/14/2001| | UNIT: [] [2] [] STATE: PA |NOTIFICATION TIME: 18:02[EST]| | RXTYPE: [1] GE-4,[2] GE-4 |EVENT DATE: 03/14/2001| +------------------------------------------------+EVENT TIME: 15:08[EST]| | NRC NOTIFIED BY: ROBERT R. BOESCH |LAST UPDATE DATE: 05/14/2001| | HQ OPS OFFICER: STEVE SANDIN +-----------------------------+ +------------------------------------------------+PERSON ORGANIZATION | |EMERGENCY CLASS: |PETE ESELGROTH R1 | |10 CFR SECTION: | | |*INV 50.73(a)(1) INVALID SPECIF SYSTEM A| | | | | | | | | | | +-----+----------+-------+--------+-----------------+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | |2 N N 0 Refueling |0 Refueling | | | | +------------------------------------------------------------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | UNIT 2 EXPERIENCED AN UNEXPECTED LOSS OF SHUTDOWN COOLING DUE TO TRIPPING OF | | VARIOUS POWER SUPPLY BREAKERS | | | | "Unit 2 was in Mode 5 on the fifth day of its 10th Refuel and Inspection | | Outage. At 1508 hours, the unit experienced an unexpected loss of Division 1 | | RPS Power supply. The loss of power was a result of the Electrical | | Protection Assembly (EPA) A & C breakers and motor generator output breaker | | tripping. The cause is under investigation. | | | | "The loss of power caused the RHR Shutdown Cooling suction valve HV251F009 | | to close. This is a common suction valve to both divisions of RHR and | | resulted in the complete loss of RHR Shutdown Cooling. The reactor currently | | has its head removed with the reactor cavity flooded up with the gates to | | the spent fuel pool removed. A Supplemental Decay Heat Removal system was in | | service at the time, but was not considered fully capable of decay heat | | removal. Reactor coolant temperature increased less than 2 degrees during | | the 37 minutes SDC was out of service. The RPS power supply was switched to | | its alternate supply and SDC was restored at 1545 hours. In accordance with | | 10CFR50.72(b)(3)(v) this represents a loss of a safety system which removes | | residual heat and requires an 8 hour ENS call. In addition to the isolation | | of RHR SDC, RWCU isolated due to containment valve HV244F001 closing, and | | Unit 2 HVAC Zone 3 (refuel floor) isolated. These isolations constitute an | | actuation of a Containment Isolation signal that affected multiple systems, | | and is reportable per | | 10CFR50.72(b)(3)(iv)(A)." | | | | Peak temperature after losing SDC was 105 degrees. The licensee informed the | | NRC resident inspector. | | | | ***** UPDATE RECEIVED AT 1542 ON 05/15/01 FROM GORGON E. ROBINSON TO LEIGH | | TROCINE ***** | | | | The licensee is updating this event notification to change the event | | reporting requirements from an 8-hour event notification to a 60-day | | notification of invalid system actuations. The following text is a portion | | of a facsimile received from the licensee: | | | | "ENS Notification # 37839 documented that the loss of the Unit 2 Division 1 | | RPS power supply on 3/14/01 required an 8-hour ENS notification for | | actuation of a containment isolation signal that affected multiple systems | | and a loss of a safety function required to remove residual heat | | (10CFR50.72(b)(3)(iv)(A) and 10CFR50.72(b)(3)(v)(B), respectively). After | | subsequent evaluation of the event, the reportability determination is being | | changed to retract the 8-hour notification and provide the required a 60-day | | ENS notification for an invalid actuation that affected multiple systems. | | See the discussion below." | | | | "The initial condition was reported per 10CFR50.72(b)(3)(v)(B), loss of | | safety function that is needed to remove residual heat. A subsequent review | | of the event and reporting requirements by PPL has concluded that the event | | is not reportable per this section of the rule. In this case, the 37-minute | | interruption did not and would not have prevented the fulfillment of the RHR | | shutdown cooling function." | | | | "The original notification stated that an actuation of a containment | | isolation signal that affected multiple systems was reportable as an 8-hour | | ENS notification per 10CFR50.72(b)(3)(iv)(A). For this event, a half-scram | | while the unit was shutdown, was the result of an invalid signal since it | | was due to loss of RPS power. Except for critical scrams, invalid | | actuations are not reportable by telephone under 10CFR50.72. Therefore, | | this 60-day optional report, as allowed by 10CFR50.73(a)(1), is being made | | under the reporting requirement in 10CFR50.73(a)(2)(iv)(A) to describe an | | invalid actuation of general containment isolation signals affecting | | isolation valves in more than one system." | | | | "At 15:08 on March 14, 2001, with Unit 2 in Mode 5 at 0% power, the primary | | power supply to the 'A' Reactor Protection System (RPS) power distribution | | panel was lost when the Motor-Generator (MG) Set generator in that division | | failed. This resulted in Primary Containment Isolation System actuations | | including isolation of [a] Residual Heat Removal shutdown cooling suction | | valve and other automatic system initiations. RPS as well as other plant | | systems functioned as designed in response to the event. The 'A' RPS | | distribution panel was swapped to alternate power, and all isolations were | | reset by 16:10. The loss of power was due to a failure of the 'A' RPS M-G | | set generator. The generator failed due to a manufacturing defect of an | | internal conductor connection. The failed generator was replaced, and other | | like-in-kind generators will be inspected. There were no safety | | consequences or compromises to the health or safety of the public. This | | event has been entered into the site-specific corrective action program for | | resolution. Internal and industry events were reviewed to assess if a | | generic problem exits with this type of generator. No evidence of similar | | failures was found, which indicates that a generic problem does not exist." | | | | "The NRC site Resident Inspector has been notified." The NRC operations | | officer notified the R1DO (Rogge) | +------------------------------------------------------------------------------+ !!!!!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!!!! +------------------------------------------------------------------------------+ |Power Reactor |Event Number: 37937 | +------------------------------------------------------------------------------+ +------------------------------------------------------------------------------+ | FACILITY: QUAD CITIES REGION: 3 |NOTIFICATION DATE: 04/21/2001| | UNIT: [] [2] [] STATE: IL |NOTIFICATION TIME: 07:02[EDT]| | RXTYPE: [1] GE-3,[2] GE-3 |EVENT DATE: 04/21/2001| +------------------------------------------------+EVENT TIME: 03:20[CDT]| | NRC NOTIFIED BY: JOHN LECHMAIER |LAST UPDATE DATE: 05/14/2001| | HQ OPS OFFICER: LEIGH TROCINE +-----------------------------+ +------------------------------------------------+PERSON ORGANIZATION | |EMERGENCY CLASS: N/A |RONALD GARDNER R3 | |10 CFR SECTION: | | |*IND 50.72(b)(3)(v)(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 | | | | +------------------------------------------------------------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | UNIT 2 HPCI INOPERABLE DUE TO FAILED TURBINE EXHAUST LINE VACUUM BREAKER | | CHECK VALVES | | | | The following text is a portion of a facsimile received from the licensee: | | | | "At 0320 [CDT] on April 21, 2001, Unit [2] HPCI was declared inoperable when | | two check valves failed to meet acceptance criteria during the performance | | of [procedure] QCOS 2300-18, HPCI STEAM EXHAUST VACUUM BREAKER LINE CHECK | | VALVES IST FUNCTIONAL TEST. Two of the four HPCI turbine exhaust line | | vacuum breaker check valves were found to have failed to close. The exhaust | | line containing the failed check valves was isolated at the start of the | | surveillance using motor-operated isolation valves contained in the exhaust | | line. The failed check valves remain isolated." | | | | The licensee stated that Unit 2 is in a 14-day limiting condition for | | operation as a result of this issue. | | | | The licensee notified the NRC resident inspector. | | | | ***** RETRACTION RECEIVED AT 1829 EDT ON 05/14/01 FROM TOM OSELAND TO LEIGH | | TROCINE ***** | | | | The following text is a portion of a facsimile received from the licensee: | | | | "We have completed our evaluation and have determined that the HPCI [system] | | was always capable of performing its intended safety function." | | | | "BACKGROUND" | | | | "On 4/21/01 at 0116 hours [CDT], plant operators began surveillance QCOS | | 2300-18, 'HPCI Steam Exhaust Vacuum Breaker Line Check Valves IST Functional | | Test.' The surveillance test is performed to confirm that valves 2-2399-64 | | and 2-2399-65 open and close by applying air pressure to the check valves. | | During the test, these valves were found to meet the acceptance criteria in | | the open direction. The function of these valves is to open to provide a | | flow path from the suppression chamber to the HPCI turbine steam exhaust | | piping to prevent a vacuum. Following HPCI operation, the steam condensing | | in the suppression pool and exhaust line would cause the suppression pool | | water to be drawn up the exhaust piping." | | | | "At 0320 hours [CDT], the station equipment operator performing the test | | indicated that the 2-2399-64 and 2-2399-65 valves failed to close. These | | valves must close during HPCI operation to prevent steam flow from the HPCI | | turbine steam exhaust piping to the suppression chamber. Station operators | | declared the HPCI system inoperable when the test revealed that these valves | | did not close. Subsequently, operators initiated an ENS phone call to the | | NRC in accordance with the Exelon reportability manual SAF 1.8, 'Event or | | Condition That Could Have Prevented Fulfillment of a Safety Function' | | (10CFR50.72(b)(3)(v))." | | | | "Repairs were initiated, and at 1806 hours [CDT] on 4/21/01. Following | | repairs, the HPCI vacuum breaker valves 2- 2399-64 and 2- 2399-65 passed the | | IST test criteria and HPCI was declared operable." | | | | "At approximately 1200 hours [CDT] on 4/22/01, the operators tested the | | 2-2399-66 and 2-2399-67 valves. They were found to meet the acceptance | | criteria in both the open and closed direction. These valves are a | | redundant set to the 2-2399-64 and 2-2399-65 valves." | | | | "ANALYSIS" | | | | "The 2-2399-64 valve and 2-2399-66 valve are in series on the same line. | | This same configuration also exists on a different line for the 2- 2399-65 | | and 2-2399-67 valves [...]." | | | | "During HPCI operation, either the 2-2399-64 valve or the 2-2399-66 valve | | and either the 2-2399-65 valve or the 2-2399-67 valve must close to prevent | | HPCI exhaust steam from flowing to the suppression chamber atmosphere which | | would cause an increase in containment pressure and temperature. The HPCI | | system is designed to exhaust the steam to the suppression pool. The | | exhaust is discharged below the water level in the suppression pool to | | ensure the steam is condensed." | | | | "The acceptable test results of the 2399-67 and 2399-66 valves would allow | | HPCI exhaust steam during operation to be discharged below the water level | | of the suppression chamber to ensure that steam was condensed and HPCI | | operation would not be impeded." | | | | "Although, the failure of the 2-2399-64 and 2-2399-65 to close was | | identified the as-found acceptable condition (ability to close) of the | | 2-2399-67 and 2-2399-66 valves would have ensured the ability of the vacuum | | breaker line to perform as required and thus allow HPCI to meet its safety | | function." | | | | "Based on the above, it has been concluded that HPCI was always capable of | | performing its safety function." Therefore, the licensee is retracting this | | event notification. | | | | The licensee notified the NRC resident inspector. The NRC operations | | officer notified the R3DO (Shear). | +------------------------------------------------------------------------------+ !!!!!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!!!! +------------------------------------------------------------------------------+ |Power Reactor |Event Number: 37971 | +------------------------------------------------------------------------------+ +------------------------------------------------------------------------------+ | FACILITY: PERRY REGION: 3 |NOTIFICATION DATE: 05/08/2001| | UNIT: [1] [] [] STATE: OH |NOTIFICATION TIME: 01:52[EDT]| | RXTYPE: [1] GE-6 |EVENT DATE: 05/08/2001| +------------------------------------------------+EVENT TIME: 00:09[EDT]| | NRC NOTIFIED BY: VEITCH |LAST UPDATE DATE: 05/14/2001| | HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+PERSON ORGANIZATION | |EMERGENCY CLASS: N/A |BRUCE JORGENSEN R3 | |10 CFR SECTION: | | |*RPS 50.72(b)(2)(iv)(B) RPS ACTUATION - CRITICA| | | | | | | | | | | +-----+----------+-------+--------+-----------------+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ |1 M/R Y 22 Power Operation |0 Hot Shutdown | | | | | | | +------------------------------------------------------------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | REACTOR WAS MANUALLY SCRAMMED FROM 22% POWER DUE TO FAILURE OF RECIRC PUMP | | TO RESTART | | | | A manual scram was inserted at 0009 on 5/8/01. The scram was conducted in | | accordance with plant procedures, IOI-8 "Manual Scram," due to a failure of | | the reactor recirculation pump "A" to restart during a downshift from fast | | to slow speed operation. Plant response to the manual scram was as | | anticipated, all rods fully inserted, no ECCS actuations occurred and no | | SRVs opened. Reactor vessel water level reached Level 3 (177.7 inches) and | | operators entered the Plant Emergency Instructions. At 0016, the Plant | | Emergency Instructions were exited. The cause of the "A" recirculation pump | | failure to restart is being investigated. | | | | The NRC Resident Inspector was notified. | | | | * * * RETRACTION 1132 5/14/2001 FROM RUSSELL TAKEN BY STRANSKY * * * | | | | "A 10CFR50.72(b)(2)(iv), RPS Actuation, four- (4) hour non-emergency | | notification was initially made on 5-8-2001, due a Manual Reactor Scram | | while critical. The Shift Supervisor conservatively defaulted with the | | reportability determination and made the notification. Subsequently the | | plants corrective action program required a confirmatory review of the | | condition and its reportability by the staff. | | | | "The reportability review by the plant staff determined that the condition | | was not event driven since viable options were available. The options | | included: continue operation in single loop until the Recirculation Pump 'A' | | breaker was repaired and the pump restarted, shutdown by manually inserting | | control rods or enter Shutdown by Manual Scram, utilizing plant procedures | | IOI-4 and IOI-8 respectively. The operators followed IOI-8 which purpose is | | to provide general directions and guidelines for initiating a planned | | shutdown by a manual reactor scram. It is intended to be entered during a | | non-emergency condition with plant conditions stable. Use of this procedure | | requires prior approval of the Operation's Manager and was obtained. | | | | "After Operations reviewed the available options, it was concluded at | | management's discretion, that the plant would be shutdown to repair the | | Recirculation Pump 'A' breaker and the Recirculation Pump 'B' seal, via | | IOI-8. | | | | "The power plant was then configured for a controlled reactor scram in an | | orderly manner without delay. House electrical loads were shifted to the | | startup source: HPCS, which had been out of service for scheduled | | maintenance was made available to support the scram if required; the Motor | | Feed Pump was started and reactor level and pressure were adjusted to | | support the scram. Reactor pressure was raised to support performance of | | control rod scram time surveillance testing during the scram. | | | | "The reactor was scrammed on 5/8 at 0009 hrs. All equipment functioned as | | expected. The plant underwent a controlled cooldown resulting in RHR 'A' | | being placed in service just prior to 0800 hrs. The shutdown evolution as | | chronologically described below complied with plant procedures, license | | conditions, and Technical Specifications. License Commitments were reviewed | | for compliance, and no issues were identified. | | | | "Chronology | | | | "May 7, 2001 | | 16:20 Start 101-3 power reduction for B33 'B' seal temperature. | | 17:22 Power reduction suspended while seal temperature stable. | | 19:42 Restarted 101-3 power reduction; B33 'B' seal at 200�F. | | 20:50 533 pump downshift incomplete. 'B' in slow; 'A' in off. | | 20:52 Enter ONI-51: B33 Pump 'A' tripped. | | Reactor Engineer contacted. | | Power 22%; Loop Flow 'B' 6.25%; B33 in Loop Manual. | | Technical Specification Power/Flow limits met w/o adjusting power or flow. | | 21:01 B33-F067A - closed per ONI. | | 21:10 B33-F067A - reopened per ONI. | | 22:16 Attempted restart of B33 'A' Pump. | | 22:46 Raised Reactor Pressure for scram testing. | | 22:51 House electrical loads transferred to Start-up Transformer. | | 23:49 Motor Feed Pump started for SCRAM. | | 23:55 HPCS In secured status with operator ready to place in standby if | | needed during SCRAM. | | | | "May 8, 2001 | | 00:09 Manual SCRAM inserted per IOI-8, PEI-B13 entered on Level 3 as | | expected. | | 00:13 SCRAM Reset. | | 00:16 PEI-B13 Exited. | | | | "Subsequent review has determined that although a plant outage was | | determined to be the appropriate option, there was no urgency and sufficient | | planning was involved to ensure a controlled shutdown occurred. The | | determination concluded that this plant shutdown should be considered a | | pre-planned sequence and was performed at Management's discretion and | | oversight. The level 3 scram that occurred as part of he post Scram | | transient was an expected part of the preplanned sequence. Therefore, this | | condition is not reportable and ENF 37971 is retracted." | | | | The licensee notified the NRC resident inspector. The NRC operations | | officer notified the R3DO (Shear). | +------------------------------------------------------------------------------+ +------------------------------------------------------------------------------+ |Power Reactor |Event Number: 37987 | +------------------------------------------------------------------------------+ +------------------------------------------------------------------------------+ | FACILITY: MAINE YANKEE REGION: 1 |NOTIFICATION DATE: 05/14/2001| | UNIT: [1] [] [] STATE: ME |NOTIFICATION TIME: 02:21[EDT]| | RXTYPE: [1] CE |EVENT DATE: 05/14/2001| +------------------------------------------------+EVENT TIME: 00:20[EDT]| | NRC NOTIFIED BY: TERRY WHITE |LAST UPDATE DATE: 05/14/2001| | HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+PERSON ORGANIZATION | |EMERGENCY CLASS: N/A |JOHN ROGGE R1 | |10 CFR SECTION: | | |*PRE 50.72(b)(2)(xi) OFFSITE NOTIFICATION | | | | | | | | | | | +-----+----------+-------+--------+-----------------+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ |1 N N 0 Decommissioned |0 Decommissioned | | | | | | | +------------------------------------------------------------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | OFFSITE NOTIFICATION DUE TO DIESEL FUEL SPILL ONSITE | | | | The licensee notified the Maine Department of Environmental Protection | | regarding the spillage of approximately 25 gallons of diesel fuel. The fuel | | oil was spilled when the fuel tank of a truck was punctured as it was | | driving over a temporary ramp. The spill has been contained. | +------------------------------------------------------------------------------+ +------------------------------------------------------------------------------+ |Other Nuclear Material |Event Number: 37988 | +------------------------------------------------------------------------------+ +------------------------------------------------------------------------------+ | REP ORG: US ARMY |NOTIFICATION DATE: 05/14/2001| |LICENSEE: US ARMY |NOTIFICATION TIME: 11:16[EDT]| | CITY: ABERDEEN PROVING GROUND REGION: 1 |EVENT DATE: 05/11/2001| | COUNTY: HARFORD STATE: MD |EVENT TIME: [EDT]| |LICENSE#: 19-30563-01 AGREEMENT: Y |LAST UPDATE DATE: 05/14/2001| | DOCKET: |+----------------------------+ | |PERSON ORGANIZATION | | |JOHN ROGGE R1 | | |S. FRANT NMSS | +------------------------------------------------+BLAIR SPITZBERG R4 | | NRC NOTIFIED BY: JOYCE KUYKENDALL | | | HQ OPS OFFICER: JOHN MacKINNON | | +------------------------------------------------+ | |EMERGENCY CLASS: N/A | | |10 CFR SECTION: | | |BAB2 20.2201(a)(1)(ii) LOST/STOLEN LNM>10X | | | | | | | | | | | | | | +------------------------------------------------------------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | LOST CHEMICAL AGENT ALARM AT FT. IRWIN, CA. | | | | | | The U.S. Army Aberdeen Proving Grounds reported the loss of a chemical agent | | alarm, model number GID-3. The alarm contains two nickel-63 sources each | | with an activity of 15mCi. The chemical agent alarm was lost at FT. Irwin, | | CA during training exercises on May 11, 2001. Search is in progress to | | locate the alarm. | +------------------------------------------------------------------------------+
Page Last Reviewed/Updated Wednesday, March 24, 2021
Page Last Reviewed/Updated Wednesday, March 24, 2021