ML20059C136

Confirmation Action Ltr CAL-3-93-18,confirming 931225 & 27 Telcons Re Recent turbine-generator Failure Which Occurred at Plant on 931225.Listed Actions Being Performed by Util

ML20059C136
Person / Time
Site:	Fermi
Issue date:	12/28/1993
From:	Martin J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To:	Gipson D DETROIT EDISON CO.
References
CAL-3-93-18, NUDOCS 9401040396
Download: ML20059C136 (6)

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l, Docket No. 50-341 License No. NPF-43 CAL No. 3-93-018 The Detroit Edison Company ATTN:

D. R. Gipson Senior Vice Prcsident l

Nuclear Generation 6400 North Dixie Highway Newport, MI 48166

SUBJECT:

CONFIRMATORY ACTION LETTER

Dear Mr. Gipson:

l This confirms the conversations on Decembe'. 25 and 27, 1993, between i

Mr. Edward G. Greenman of this office and you related to the recent turbine-generator failure which occurred at Fermi Unit 2 on December 25, 1993. With respect to the matters discussed, we understand that you are performing or.

will perform the following actions:

t 1)

Complete an internal investigation to -determine the sequence of j

events and root cause(s) of this event and subsequent equipment failures, such as the failure of the "B" loop recirculation pump discharge valve to fully close.

The investigation will determine and assess consequential damage, and additional random failu6 9 of l

equipment.

I 2)

Complete an evaluation of the effects of the abnormal water chemistry experienced in the reactor on the fuel and reactor internals.

3)

Pl' ace components, equipment, and data sources associated with the turbine-generator failure event, including those components that subsequently failed to perform as expected, under 11. situ quarantine to preserve evidence and data until released by you and discussed with the NRC's Augmented Inspection Team (AIT) or the NRC's Senior Resident Inspector. Note, however, that nothing in this Confirmatory Action Letter sh a ld be construed to take precedence over those actions which you feel necessary to ensure plant and personnel safety.

9401040396 931228 PDR ADOCK 05000341 P

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f The Detroit Edison Company 2

4)

When developed, provide a copy of your proposed course of action for investigation of the event, recovery of the facility, and proposed corrective acticns to the NRC Region 111 office for review.

We acknowledge that in order to assure a comprehensive 1

plan is developed that will clearly identify the root cause of the turbine-generator failure (s), some considerable time may be required to complete both items 1) and 2).

5)

Maintain documentary evidence of your investigation effort and make this available to the AIT.

6)

Make those staff members on shift at the time of the event available for interview.

We further understand that reactor startup (power operation) will not occur until you have informed the Regional Administrator or the Director of the Division of Reactor Projects, Region III, of the results of your investigation and corrective actions.

Pursuant to Section 182 of the Atomic Energy Act, 42 U.S.C. 2232, you are required to notify me immediately if your understanding differs from that set forth above, notify me if for any reason you cannot complete the actions within the specified schedule and advise me in writing of your modified schedule in advance of the change, and notify me in writing when you have completed the acticas addressed n this Confirmatory Action Letter.

Issuance of this Confirmatory Action Letter does not preclude issuance of an order formalizing the above commitments or requiring other actions on the part of the licensee; nor does it preclude the NRC from taking enforcement action for violations of NRC requirements that may have prompted the issuance of this letter.

In addition, failure to take the actions addressed in this Confirmatory Action Letter may result in enforcement action.

The responses directed by this letter are not subject to the clearance procedures of the Office of Management and Budget as required by the Paperwork Reduction Act of 1980, Pub. L. No.96-511.

In accordance with 10 CFR 2.790 of the NRC's " Rules of Practice," a copy of this letter and your response will be placed in the NRC Public Document Room.

We will gladly discuss any questions you may have concerning this matter.

Sincerel,

/M/t7 7

Jdhn B. Martin, Regional Administrator See Attached Distribution

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i The Detroit Edison Company 2

4)

When developed, provide. a copy of your proposed course of action for investigation of the event, recovery of the facility, and proposed corrective actions to the NRC Region III office for review. We acknowledge that in order to assure a comprehensive plan is developed that will clearly identify the root cause of the turbine-generator failure (s), some considerable time may be required to complete both items I) and 2).

j 5)

Maintain documentary evidence of your investigation effort and make this available to the AIT.

j i

6)

Make those staff members on shift at the time of the event i

available for interview.

We further understand that reactor startup (power operation) will not occur until you have informed the Regional Administrator or the Director of the Division of Reactor Projects, Region III, of the results of your investigation i

and corrective actions.

i Pursuant to Section 182 of the Atomic Energy Act, 42 U.S.C. 2232, you are required to notify me immediately if your understanding differs from that set forth above, notify me if for any reason you cannot complete the actions within the specified schedule and advise me in writing of your modified schedule in advance of the change, and notify me in writing when you have completed the actions addressed in this Confirmatory Action Letter.

Issuance of this Confirmatory Action Letter does not preclude issuance of an order formalizing the above commitments or requiring other actions on the part of the licensee; nor does it preclude the NRC from taking enforcement action for violations of NRC requirements that may have prompted the issuance of this letter.

In addition, failure to take the actions addressed in this Confirmatory Action Letter may result in enforcement action.

The re nonses directed by this letter are not subject to the clearance procedures of the Office of Management and Budget as required by the Paperwork Reduction Act of 1980, Pub. L. No.96-511.

In accordance with 10 CFR 2.790 of the NRC's " Rules of Practice," a copy of

-l this letter and your response will be placed in the NRC Public Document Room.

)

We will gladly discuss any questions you may have concerning this matter.

Sincerely, l

Ob /pAJ SWeel Jo4nN. Martin, (see attached concurrence)

Regional Administrator RlII RIII NRR RIII RIII RIII Phillips Pirok Zwolinsk M eenman Grant DeFayette RIII y

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Berson Miller

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The Detroit Edison Company 2

4)

When developed, provide a copy of your proposed course of action for investigation of the event, recovery of the facility, and proposed corrective actions to the NRC Region III office for review. We acknowledge that in order to assure a comprehensive plan is developed that will clearly identify the root cause of the turbine-generator failure (s), some considerable time may be required to complete both items 1) and 2).

5)

Maintain documentary evidence of your investigation effort and make this available to the AIT.

6)

Make those staff members on shift at the time of the event available for interview.

We further understand that reactor startup (power operation) will not occur until you have informed the Regional Administrator or the Director of Reactor Projects, Region III, of the results of your investigation and corrective actions.

Pursuant to Section 182 of the Atomic Energy Act, 42 U.S.C. 2232, you are required to notify me immediately if your understanding differs from that set forth above, notify me if for any reason you cannot complete the actions within the specified schedule and advise me in writing of your modified schedule in advance of the change, and notify me in writing when you have completed the actions addressed in this Confirmatory Action Letter.

Issuance of this Confirmatory Action Letter does not preclude issuance of an order formalizing the above commitments or requiring other actions on the part of the licensee; nor does it preclude the NRC from taking enforcement action for violations of NRC requirements that may have prompted the issuance of this letter.

In addition, failure to take the actions addressed in this Confirmatory Action Letter may result in enforcement action.

The responses directed by this letter are not subject to the clearance procedures of the Office of Management and Budget as required by the Paperwork Reduction Act of 1980 Pub. L. No.96-511.

In accordance with 10 CFR 2.790 of the NRC's " Rules of Practice," a copy of this letter and your response will be placed in the NRC Public Document Room.

We will gladly discuss any ouestions you may have concerning this matter.

Sincerely, John B. Martin, Regional Administrator y

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Zwolinski Greehm n h Grant Dehavette sh hk m.

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Berso Hiller Hartin

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Distribution:

cc:

-John A. Tibal, Principal Compliance Engineer t

P. A. Marquardt, Corporate

[9 gal Department OC/LFDCB Resident Inspector, RIII l

James R. Padgett, Michigan Public j

Service Commission Michigan Department of Public Health Monroe County Office of Civil Preparedness i

fermi, LPM, NRR l

J. M. Taylor, EDO J. H. Sniezek, DEDR H. L. Thompson, DEDS

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T. E. Murley, NRR L. J. Callan, NRR i

J. W. Roe, NRR j

J. A. Zwolinski, NRR W. H. Bateman, EDO A..R. Blough, Acting Director, PD 111-1 i

E. L. Jordan, AEOD J. Lieberman, OE J. R. Goldberg, OGC R. J. Strasma, RIII R. N. Gardner, DRS l

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John A. Tibai, Principal.

j Compliance Engineer P. A. Marquardt, Corporate legal. Department -

l OC/LFDCB Resident Inspector, RIII James R. Padgett, Michigan Public Service Commission Michigan Department of Public Health Monroe County Office of i

Civil Prepare <! ness fermi, LPM, NRR J..M. Taylor, EDO 1

J. H. Sniezek, DEDR H. L. Thompson,'DEDS T. E. Murley, NRR L. J. Callan, NRR J. W. Roe, NRR J. A. Zwolinski, NRR W. H. Bateman, EDO i

A. R. Blough, Acting Director, PD III-I J

>E. L. Jordan, AE00 J. Lieberman, OE i

J. R. Goldberg, OGC R. J. Strasma, RIII R. N. Gardner, DRS

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