IR 05000245/1995044

Ack Receipt of 960531 Correspondence Informing NRC of Steps Taken to Correct Violations Noted in Insp Repts 50-245/95-44,50-336/95-44 & 50-423/95-44.Corrective Actions Will Be Examined During Future Insp of Licensed Program

ML20141E066
Person / Time
Site:	Millstone
Issue date:	06/16/1997
From:	Durr J NRC (Affiliation Not Assigned)
To:	Kenyon B NORTHEAST NUCLEAR ENERGY CO.
References
50-245-95-44, 50-336-95-44, 50-423-95-44, NUDOCS 9706300201
Download: ML20141E066 (3)

Text

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NUCLEAR REGULATORY COMMISSION WASHINGTON. D.C. 2066H001 o

• • • • • June 16, 1997

Mr. Bruce President and Chief Executive Officer Northeast Nuclear Energy Company P. O. Box 128 Waterford, Connecticut 06385-0128 l SUBJECT- COMBINED INSPECTION 50-245/95-44;50-336/95-44;50-423/95-44

Dear Mr. Kenyon:

This letter refers to your May 31, 1996 correspondence, which provides an additional response to our March 6,1996 letter.

Thank you for informing us of your change to a commitment which had been made to us in a previous letter dated April 19,1996. Your actions will be examined in a future inspection of your licensed program.

Your cooperation with us is appreciated.

Sincerely,

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Jt cque P. Durr, Chief Sp9cial Projects Office Office of Nuclear Reactor Regulation Docket Nos. 50-245; 50-336;50-423 cc:

N. S. Carns, Senior Vice President and Chief Nuclea? Officer M. H. Brothers, Vice President - Millstone, Unit 3 J. McElwain, Unit 1 Recovery Officer M. Bowling, Jr., Unit 2 Recovery Officer D. M. Goebel, Vice President, Nuclear Oversight J. K. Thayer, Recovery Officer, Nuclear Engineering and Support

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P. D. Hinnenkamp, Director, Unit Operations

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F. C. Rothen, Vice President, Work Services j J. Stankiewicz, Training Re ,overy Manager I l

R. Johannes, Director - Nuolen Training l

Cf0ERCOPY 9706300201 970616 PDR ADOCK 05000245 G PDR

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Mr. Bruce *

cc w/cy of Licensee's Response Letter: l L. M. Cuoco, Esquire J. R. Egan, Esquire V.'Juliano, Waterford Library J. Buckingham, Department of Public Utility Control S. L. Comley, We The People State of Connecticut SLO Designee D. Katz, Citizens Awareness Network (CAN)

R. Bassilakis, CAN J. M. Block, Attorney, CAN S. P. Luxton, Citizens Regulatory Commission (CRC)

Representative T. Concannon E. Woollacott, Co-Chairman, NEAC t

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$ Mr. Bruce Distribution w/cv of Licensee's Response letter:

Region i Docket Room (with copy of concurrences)

Nuclear Safety information Center (NSIC)

PUBLIC i l TFILE CENTERJ NRR linrith"Drininal concurrehiisisfl

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' NRC'Re'sident'Insd55 tor '

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M. Kalamon, SPO, RI l W. Lanning, Deputy Director of Inspections, SPO, RI l D. Screnci, PAO l W. Travers, Director, SPO, NRR

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S. Reynolds, Technical Assistant, SPO, NRR D. Screnci, PAO Inspection Program Branch (IPAS)

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l l l May 31, 1996 l Docket No. 50-336 B15731 l

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U.S. Nuclear Regulatory Commission .

l Attention: Document Control Desk L Washington, DC 20555 i l Millstone Nuclear Power Station, Unit No. 2 l

Supplemental Response to Staff's Request Regarding Reactor Coolant System Heatup and Cooldown Weaknesses URC Combined Inspection 50-245/95-44; 50-336/95-44; 50-423/95-44 In a letter dated March 6, 1996,"8 the NRC Staff transmitted NRC l Inspection Report Nos. 50-245/95-44; 50-336/95-44; and 50-423/95-44. The report discussed significant weaknesses that l were identified at Millstone Unit No. 2 which contributed to l several recent failures to maintain plant parameters within required safety specifications. Specifically, controls for maintaining reactor coolant system temperatures within required limits during plant heatup and cooldown were not adhered to.

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In response to a request that NNECO provide detailed assessment of the causal factors underlying these failures and a complete description and schedule of corrective actions, NNECO submitted a

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letter dated April 19, 1996.23 In the letter, NNECO committed l

(Commitment No. B15653-1) to provide a supplemental response by May 30, 1996, that would contain an executive summary of the cooldown Event Review Team (ERT) findings and recommendations.

We also , committed (Commitment No. B15653-8) to provide information to address the concern over lack of conservative

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! W. D. Lanning letter to T. C. Feigenbaum, "NRC Combined

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Inspection 50-245/95-44; 50-336/95-44; 50-423/95-44 and l Notice of Violation," dated March.6, 1996.

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! F. R. Dacimo letter to U. S. Nuclear Regulatory Commission,

" Millstone Nuclear Power Station, Unit No. 2, Response to Staff's Reg'lest Regarding Reactor Coolant System Heatup and Cooldown "2aknesses, NRC Combined Inspection 50-245/95-44; 50-336/95-44; 50-423/95-44," dated April 19, 1996.

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U.S. Nuclear Regulatory Commission l B15731/Page 2 l

operating guidance and a discussion on the resolution of operator l burdens.

l The commitment date established was based on NNECO's expectations that the cooldown ERT report would be complete well before May 30, 1996. It was our intention that once complete, the l report would undergo management review and that an outcome of that review would be the establishment of the appropriate corrective actions in response to ERT findings and recommendations, i The purpose of this letter is to inform you that we have not yet l completed the ERT report. Resources necessary to finalize the i report were redirected to respond to emerging issues including those associated with the Millstone Unit No. 2 "B" emergency diesel generator failure which occurred on April 17, 1996. We believe that providing conclusions in advance of the ERT report completion and review would be premature in that the information contained could be incomplete or inaccurate. We will provide the l

previously committed information once the ERT report is complete, has undergone management review, and appropriate corrective actions have been identified. We anticipate that this will be completed in approximately one month. We regret any inconvenience that our inability to meet the previously-established date has caused the Staff.

NNECO is hereby modifying a commitment made within our April 19, 1996, letter:

- Previous commitment: i

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B15653-1 NNECO hereby commits to provide the Staff with a i supplemental response that contains an executive i summary of the cooldown ERT findings and recommendations by May 30, 1996.

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New commitment:

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B15731-1 NNECO hereby commits to provide the Staff with a ,

! supplemental response that contains an executive !

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summary of the cooldown ERT findings and i recommendations upon completion of the ERT report,

management review, and identification of appropriate

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corrective actions.

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i l U.S. Nuclear Regulatory Commission B15731/Page 3 (

The commitment made within the April 19, 1996, letter (B15653-8) l associated with providing information on conservative operating

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guidance and operator burdens remains as stated. This information will be provided in our supplemental responsa. !

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If you have any questions regarding information contained herein, please contact Mr. M. D. Ehredt at (860) 440-2142.

Very trul'y yours, NORTHEAST NUCLEAR ENERGY COMPANY

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E. A. DeBarba Vice President -- Nuclear Technical Services i

cc: T. T. Martin, Region I Administrator D. G. Mcdonald,Jr., NRC Project Manager, Millstone Unit No. 2 P. D. Swetland, Senior Resident Inspector, Millstone Unit No. 2 i

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