United States Nuclear Regulatory Commission - Protecting People and the Environment

Morning Report for October 18, 2006

Headquarters Daily Report

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N/A

Temporary Scaffolding Interfering with the Operation of Safety Related Equipment

Licensee/Facility:


GENERIC

Dockets:

License No:
Notification:

MR Number: H-2006-0016
Date: 10/16/2006

Discussion:

Within the past few weeks there have been two reportable events specifically related to temporary scaffolding impacting the ability of main steam isolation valves (MSIVs) to stroke to the fully closed position.

On October 10, 2006 at Millstone, Unit 2, the licensee discovered scaffolding that prevented MSIV closure. Temporary scaffolding was constructed near the Loop-1 MSIV on August 30, 2006 while the unit was in Mode 1. On October 7, 2006 surveillance testing on the MSIVs was conducted in Mode 3. During this testing the Loop-1 MSIV failed to fully stroke closed. It was later determined that temporary scaffolding was interfering with full valve travel. The scaffolding was removed, and the surveillance test verified full valve motion.

On October 1, 2006 at Beaver Valley, Unit 2, the licensee reported that they had found temporary scaffolding installed for their upcoming outage that had rendered the "A" and "B" MSIV inoperable. The scaffolding was built on
September 29, 2006 and September 30, 2006, for refueling outage work on the "A" and "B" MSIVs. The "C" MSIV was not impacted. Some of the seismic bracing for these scaffolds was in the area of travel when closing the MSIVs. There is reasonable assurance these braces would have prevented the "A" and "B" MSIVs from reaching the fully closed position.

It is important to recognize that these are not isolated events. Within the past twelve months there have been fifteen reportable events and inspection findings related to scaffolding potentially interfering with safety-related equipment.

These events are a clear example of the need for licensees to carefully plan and execute all pre-outage work while the plant is still on-line, in order to prevent the disabling of important safety-related equipment.

Contacts:

Name Office Abbrev Phone No E-Mail
PANNIER, STEPHEN J NRR (301) 415-4083 SJP@nrc.gov


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REGION I

MANAGEMENT CHANGE AT NINE MILE POINT

Licensee/Facility:

NMPNS - A SUBSIDIARY OF CONSTELLATION ENERGY GROUP
Nine Mile Point 1, Nine Mile Point 2
LYCOMING, New York
Dockets: 05000220, 05000410
[1] GE-2, [2] GE-5
License No:
Notification:

MR Number: 1-2006-0008
Date: 10/12/2006

Call / Fax from SRI

Discussion:

On October 12, Constellation announced that James Hutton, Plant General Manager, has left the organization to pursue other interests. Effective immediately, and until a replacement is named, Tim O'Connor will serve as the acting Plant General Manager in addition to his role as Vice President Nine Mile Point.

Accession Numbers:

Accession No Accession Date
ML062910268 10/18/2006

Contacts:

Name Office Abbrev Phone No E-Mail
BURRITT, ARTHUR L R1 (610) 337-5069 ALB1@nrc.gov
Page Last Reviewed/Updated Thursday, March 29, 2012