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Re: Three "Oops" in the operational health physics
A little defensive, aren't we?
Bill
jenday1 wrote:
> I noticed that these were missed last week. I think we should be concerned
> with the lack of regulatory oversight in operational and reactor heatlh
> physics, because individuals are not adequately assessing the risks. Am I
> correct, Mr. Lipton?
> -- John
>
> John Jacobus, MS
> Certified Health Physicist
> 3050 Traymore Lane
> Bowie, MD 20715-2024
> jenday1@email.msn.com (H)
> U.S. Nuclear Regulatory Commission
> Operations Center
>
> Event Reports For
> 09/07/2001 - 09/10/2001
>
> ** EVENT NUMBERS **
>
> 38268 38269 38270 38271
>
> +---------------------------------------------------------------------------
> ---+
> |Power Reactor |Event Number: 38268
> |
> +---------------------------------------------------------------------------
> ---+
> +---------------------------------------------------------------------------
> ---+
> | FACILITY: COLUMBIA GENERATING STATIREGION: 4 |NOTIFICATION DATE:
> 09/07/2001|
> | UNIT: [2] [] [] STATE: WA |NOTIFICATION TIME:
> 00:47[EDT]|
> | RXTYPE: [2] GE-5 |EVENT DATE:
> 09/06/2001|
> +------------------------------------------------+EVENT TIME:
> 17:38[PDT]|
> | NRC NOTIFIED BY: WILLIAM BAKER |LAST UPDATE DATE:
> 09/07/2001|
> | HQ OPS OFFICER: FANGIE JONES
> +-----------------------------+
> +------------------------------------------------+PERSON
> ORGANIZATION |
> |EMERGENCY CLASS: NON EMERGENCY |LINDA SMITH R4
> |
> |10 CFR SECTION: |
> |
> |AIND 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
> +---------------------------------------------------------------------------
> ---+
> | REACTOR CORE ISOLATION COOLING SYSTEM MADE INOPERABLE
> |
> |
> |
> | "Columbia Generating Station Reactor Core Isolation Cooing (RCIC) system
> has |
> | been isolated and made inoperable per Technical Specification 3.5.3 and
> |
> | unavailable due to manual closure of the RCIC turbine trip valve. The
> |
> | manual closure of the RCIC turbine trip valve was required due to the loss
> |
> | of automatic trip capability of the turbine trip valve [due to a solenoid
> |
> | failure]. This loss of automatic trip capability under postulated
> |
> | conditions could cause a water hammer event significant enough to threaten
> |
> | primary containment.
> |
> |
> |
> | "The RCIC system is a single train system and is listed in plant
> procedures |
> | as an Engineered Safety Feature (ESF).
> |
> |
> |
> | "The RCIC system will function automatically or manually to inject water
> |
> | into the RPV if manually returned to service."
> |
> |
> |
> | The licensee notified the NRC Resident Inspector.
> |
> +---------------------------------------------------------------------------
> ---+
>
> +---------------------------------------------------------------------------
> ---+
> |Power Reactor |Event Number: 38269
> |
> +---------------------------------------------------------------------------
> ---+
> +---------------------------------------------------------------------------
> ---+
> | FACILITY: LASALLE REGION: 3 |NOTIFICATION DATE:
> 09/07/2001|
> | UNIT: [] [2] [] STATE: IL |NOTIFICATION TIME:
> 03:30[EDT]|
> | RXTYPE: [1] GE-5,[2] GE-5 |EVENT DATE:
> 09/07/2001|
> +------------------------------------------------+EVENT TIME:
> 00:24[CDT]|
> | NRC NOTIFIED BY: MICHAEL FITZPATRICK |LAST UPDATE DATE:
> 09/07/2001|
> | HQ OPS OFFICER: FANGIE JONES
> +-----------------------------+
> +------------------------------------------------+PERSON
> ORGANIZATION |
> |EMERGENCY CLASS: NON EMERGENCY |MARK RING R3
> |
> |10 CFR SECTION: |
> |
> |ARPS 50.72(b)(2)(iv)(B) RPS ACTUATION - CRITICA|
> |
> | |
> |
> | |
> |
> | |
> |
> +-----+----------+-------+--------+-----------------+--------+--------------
> ---+
> |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE
> |
> +-----+----------+-------+--------+-----------------+--------+--------------
> ---+
> | |
> |
> |2 M/R Y 72 Power Operation |0 Hot Shutdown
> |
> | |
> |
> +---------------------------------------------------------------------------
> ---+
> EVENT TEXT
> +---------------------------------------------------------------------------
> ---+
> | MANUAL REACTOR SCRAM DUE TO 2 LOW PRESSURE HEATER STRINGS ISOLATING
> |
> |
> |
> | The following is taken from a facsimile report:
> |
> |
> |
> | This report is being made per 10CFR50.72(b)(2)(iv)(B) RPS actuation
> (scram) |
> | (4 hour notification for U-2).
> |
> |
> |
> | At 12:24 AM CDT, Friday 9/7/01, U-2 was manually scrammed. The initiating
> |
> | event was a loss of 2 of 3 Low Pressure Feedwater Heater Strings. A high
> |
> | level condition was initially received in the 21A Low Pressure Heater,
> which |
> | caused the Condensate System inlet and outlet isolation valves to the 2A
> Low |
> | Pressure Heater String to close. Subsequently, a high level condition was
> |
> | also received in the 21C Low Pressure Heater, which caused the Condensate
> |
> | System inlet and outlet isolation valves to the 2C Low Pressure Heater
> |
> | String to close. With a second Low Pressure Heater String isolated, Unit 2
> |
> | was manually scrammed in accordance with LaSalle Procedure LOA-HD-201,
> |
> | "Heater Drain System Trouble".
> |
> |
> |
> | All systems operated as designed. There were no ECCS actuations or Primary
> |
> | Containment isolations. The lowest Reactor level reached was minus 20
> inches |
> | (141 inches above the top of active fuel) and was recovered to normal
> level |
> | using feedwater. Reactor pressure responded normally. No Safety Relief
> |
> | Valves actuated. All Control Rods fully inserted.
> |
> |
> |
> | The NRC Resident Inspector has been notified.
> |
> |
> |
> | The cause of the Low Pressure Heater String loss is being investigated at
> |
> | this time.
> |
> +---------------------------------------------------------------------------
> ---+
>
> +---------------------------------------------------------------------------
> ---+
> |General Information or Other |Event Number: 38271
> |
> +---------------------------------------------------------------------------
> ---+
> +---------------------------------------------------------------------------
> ---+
> | REP ORG: NEW MEXICO RAD CONTROL PROGRAM |NOTIFICATION DATE:
> 09/07/2001|
> |LICENSEE: WESTERN TECHNOLOGIES |NOTIFICATION TIME:
> 18:31[EDT]|
> | CITY: CUBA REGION: 4 |EVENT DATE:
> 09/06/2001|
> | COUNTY: STATE: NM |EVENT TIME:
> 11:00[MDT]|
> |LICENSE#: DM 244-29 AGREEMENT: Y |LAST UPDATE DATE:
> 09/07/2001|
> | DOCKET:
> |+----------------------------+
> | |PERSON
> ORGANIZATION |
> | |LINDA SMITH R4
> |
> | |M. WAYNE HODGES NMSS
> |
> +------------------------------------------------+
> |
> | NRC NOTIFIED BY: SHERRY MILLER |
> |
> | HQ OPS OFFICER: JOHN MacKINNON |
> |
> +------------------------------------------------+
> |
> |EMERGENCY CLASS: NON EMERGENCY |
> |
> |10 CFR SECTION: |
> |
> |NAGR AGREEMENT STATE |
> |
> | |
> |
> | |
> |
> | |
> |
> | |
> |
> +---------------------------------------------------------------------------
> ---+
>
> EVENT TEXT
> +---------------------------------------------------------------------------
> ---+
> | MISSING TROXLER DENSITY GAUGE.
> |
> |
> |
> |
> |
> | Western Technologies, out of Albuquerque, accidentally left a 3430 Troxler
> |
> | moisture density gauge at mile marker 49 on US highway 550. The moisture
> |
> | density gauge was out of its transport case laying on the side of the
> |
> | highway when the it was left behind. The driver immediately, within an
> hour, |
> | returned to the location and discovered that the gauge was missing. State
> |
> | of New Mexico has recommended to the licensee that they offer a reward for
> |
> | the missing gauge.
> |
> +---------------------------------------------------------------------------
> ---+
>
> ************************************************************************
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