IR 05000298/1989090

Forwards Summary of 890323 Enforcement Conference Meeting Re Findings of NRC Insp Rept 50-298/89-90 on 890213-16. Attendance List & Viewgraphs Also Encl

ML20248G517
Person / Time
Site:	Cooper
Issue date:	03/30/1989
From:	Callan L NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
To:	Trevors G NEBRASKA PUBLIC POWER DISTRICT
References
NUDOCS 8904130459
Download: ML20248G517 (12)

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'- MAR 3 01989

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'In Reply Refer To:'

. Docket: 50-298

. License No. DPR-46 EA No. 89-56

Nebraska Public Power District ATTN: George A. Trevors Division Manager - Nuclear Support P.O. Box 499 Columbus, NE 68602-0499 Gentlemen:

This refers'to the~ enforcement. conference conducted in the Region IV office on March 23,1989,'with Mr. L. Kunc1 and other members of his staff, Region IV, and Office of Nuclear Reactor Regulation personnel. This conference involved the findings of' the NRC inspection. conducted February 13-16,1989(NRC

., -Inspection Report 50-298/89-09 dated March 3, 1989).

The subjects discussed at-this meeting are described-in the enclosed* Meeting

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Summar In' accordance with Section 2.790 of.the NRC's " Rules of Practice," Part' 2, .

Title 10, Code' of Federal Regulations, a copy of this letter will be'placed in the NRC's Public Document Roo Should you have any questions concerning this matter, we will be pleased to discuss them,with yo

Sincerely, I

Onginal Signed Bp A. B. BEACH L. J. Callan, Director  !

Division of Reactor Projects Enclosure:

Meeting Summary cc w/ enclosure:

Cooper Nuclear Station ATTN: Guy Horn, Division Manager of Nuclear Operations P.O. Box 98 Brownville, Nebraska 68321 Kansas Radiation Contro1' Program Director i

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- RSTS Operato DRP P. O'Connor,,NRR Project. Manager (MS: 13-D-18) DRS J. Lieberman,-0E

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i MEETING SUMMARY Licensee: Nebraska Public Power District i Facility: Cooper Nuclear Station License No.: DPR-46 Docket No.: 50-298 Subject: Enforcement Conference Concerning NRC Inspection Findings (NRCInspectionReport 50-298/89-09)

On March 23, 1989, an enforcement conference was held in the Region IV office with representatives of Nebraska Public Power District and NRC staff to discuss the findings documented in NRC Inspection Report 50-298/89-09 dated March 3, 1989. The attendance list is attache The NRC discussed its concern regarding an apparent violation of NRC requirements. The apparent violation involved corrective actions which led to a repeated failure of an emergency diesel generator on February 13, 1989. The licensee discussed the sequence of events, the safety significance of events, and the corrective ections taken. Handouts prepared by NPPD for the meeting are attache Attachments:

1. Attendar.ce List 2. NPPDPresentation(NRCdistribution)

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ATTENDANCE LIST Attendance at the NPPD/NRC enforcement conference on March 23, 1989, at the

<NRC Region IV office:

-NPPD L. Kuncl, Nuclear Power Group Manager G. R.- Horn, Division Manager. Nuclear Operations

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'V.' L. Wolstenholm. . Division Manager, Quality Assurance G. A. Trevors, Division Manager, Nuclear Support E. M. Mace, CNSfEngineering Manager NRC A. B.. Beach, Deputy Director, Division of Reactor Projects J. P. Jaudon, Deputy Director, Division of Reactor Safety G. F. Sanborn, Enforcement Officer E. lB. Tomlinson, NRR Project Engineer, Project Directorate IV T. F. Stetka, Chief, Plant SystemsSection I. Barnes, Chief, Material & Quality Programs-Section

'W. R. Bennett, Acting Chief, Project Section C

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G. A. Pick, Resident Inspector, CNS

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'i AGEND < INTRODUCTION *H. G. PARRIS

'l 1 NO.1' DIESEL GENERATOR AIR- E. M. MACE .

' FITTING FAILURE . '

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o l HISTORY 0F RECENT EVENTS, ROOT CAUSE/ CORRECTIVE ACTION o ADEQUACY. OF PREVIOUS CORRECTIVE ACTION

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PLANNED LONG-TERM

' CORRECTIVE ACTION 11 NO.1 DIESEL GENERATO G. R. Horn L

INOPERABILITY IMPACT IV. CLOSING REMARKS H. G. PARRIS

• Mr. Parris was represented by Mr. L. Kuncl due to illnes ___z_=__--______-________-__-__-______ _______-__-____---_--_-_____--__-__:-_____-

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HISTORY OF RECENT EVENTS ROOT CAUSE DETERMINATION / CORRECTIVE ACTION A

o JANUARY 17, 1989 FAILURE FAILURE DESCRIPTION ROOT CAUSE

- TUBING INTERFERENCE CORRECTIVE ACTIONS

- REPLACED FITTING

- REROUTED AIR LINE

- WALKDOWN/ INTERFERENCE ISOLATIONS ON BOTH D/G's

- ENGINEERING WALKDOWN DURING POST-MAINTENANCE OPERATION AND FUTURE SCHEDULED STARTS FEBRUARY 13, 1989 FAILURE FAILURE DESCRIPTION CORRECTIVE ACTIONS (IMMEDIATE)

- RETURNED #1 DIESEL GENERATOR TO SERVICEABLE CONDITION, POWER REDUCTION

- EXTENSIVE REPLACEMENT OF TUBING ON #1 DIESEL GENERATOR o EMERGENCY START CONTROL AIR, LUBE OIL o RECONFIGURE AMOT TUBING, MINOR REROUTING o ADDITIONAL VIBRATION ISOLATION

- ENGINEERING WALKDOWN DURING THE 4-HOUR OPERABILITY RUN

- PROCEEDED WITH SIMILAR ACTIONS ON #2 DIESEL GENERATOR

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HISTORY OF RECENT EVENTS ROOT CAUSE DETERMINATION / CORRECTIVE ACTION ROOT CAUSE: DESIGN DEFICIENCY CONFIGURATION INADEQUATE FOR VIBRATION RESISTANC CORRECTIVE ACTION

- CORRECTED FITTING AND TUBING CONFIGURATIO ROOT CAUSE: HUMAN MISCUE

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INADEQUATE ROOT CAUSE DETERMINATION IN BOTH THE NOVEMBER 1973 ann JANUARY 1989 EVENT *

CORRECTIVE ACTION

- CONDUCT ENGINEERING DEPARTMENT TRAINING ON TECHNICAL ROOT CAUSE EVALUATIONS (PREVIOUSLY SCHEDULED, COMPLETE BY MARCH 1989).

- DEVELOP AN ENGINEERING DEPARTMENT INSTRUCTION TO ESTABLISH CONSISTENT DOCUMENT RESEARCH CRITERI A (COMPLETE BY MAY 1989). CONDUCT TRAINING (COMPLETE BY MAY 1989) .

- DEVELOP SUMMARY DATA BASE FOR NCR HISTORY (COMPLETE BY SEPTEMBER 1989).

- DEVELOP INTEGRATED DATABASE (COMPLETlON PLANNED BY 1991).

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e HISTORY OF RECENT EVENTS

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ROOT CAUSE DETERMINATION / CORRECTIVE ACTION ROOT CAUSE: HUMAN MISCUE INADEQUATE DESIGN CONTROL IN BOTH THE NOVEMBER 1973 AND JANUARY 1989 EVENTS. ADDITIONALLY, THE 1989 FITTING REPLACEMENT DETERMINATION D!D NOT CONSIDER Vf BRATION RESISTANCE AS A CRITICAL C. CHARACTERISTI CORRECTIVE ACTION

- DEVE' OP A REPLACEMENT COMPONENT EVALUATION PROCEDURE (COMh,ETE BY APRIL 1989).

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-~ ADDITIONAL CRAFT TRAINING TO FURTHER ENHANCE RECOGNITION OF RCE APPLICABILITY (COMPLETE BY MAY 1989).

- ENGINEERING DEPARTMENT TRAINING ON USE OF RCE PROCEDURE (COMPLETE BY MAY 1989).

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ADEQUACY OF PREVIOUS CORRECTIVE ACTION NCR'S (20)

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CORRECTIVE ACT10N

- HEAVY-WALLED FITTINGS

- LOCALIZED REPAIRS

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- CU -- SS REPLACEMENTS

- REROUTING ,

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- ADDITIONAL CLAMPS o INDUSTRY EXPERIENCE

- INPO SIGNIFICANT OPERATING EXPERIENCE REPORT 83-1 "D/G FALURES"

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INFORMATION NOTICES 83-51 "D/G EVENTS" 86-73 "EDG PROBLEMS" ,

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- GENERIC LETTER l 84-15 "D/G RELI ABILITY"

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PLANNED LONG-TERM CORRECTIVE ACTION SCOPE (1989 OUTAGE)

4 DESIGN CHANGES AND 1 MWR

- INSTRUMENT / COMPONENT RELOCATION

- REPLACEMENT OF TUBING / FITTINGS

- VlBRATION ISOLATION o RESOURCES

$800,000 ,

5,000 MAN-HOURS v

o SYSTEMS INVOLVED FUEL OIL LUBE OIL CONTROL AIR STARTING AIR JACKET WATER

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TUBE FAILURE RONCONFORMANCES CAUSE: TUBE LEAK, INTERFERENCE, FTTTING 4-

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