ML20206Q037

Summary of 860806 Meeting W/Util Re Addl Justification for Deferral of Part of Dr/Qr Phase 1 Insp for Div II Tdi Emergency Diesel Generator,Initially Requested on 860607. List of Attendees & Viewgraphs Encl

ML20206Q037
Person / Time
Site:	Grand Gulf
Issue date:	08/25/1986
From:	Kintner L Office of Nuclear Reactor Regulation
To:	Office of Nuclear Reactor Regulation
References
TAC-61781, NUDOCS 8608270437
Download: ML20206Q037 (12)

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s August 25, 1986 Docket No. 50-416 LICENSEE: Mississippi Power & Light Company (MP&L)

FACILITY: Grand Gulf Nuclear Station, Unit 1

SUMMARY

OF AUGUST 6, 1986 MEETING REGARDING INSPECTION OF DIVISION II TDI EMERGENCY DIESEL GENERATOR The purpose of the n'eeting was to hear and discuss the licensee's additional justification for the deferral of a part of the DR/QR Phase I inspection for the Division II TDI emergency diesel generator. The deferral was requested and justified by letter dated June 7, 1986. Enclosure 1 is a list of attendees.

Encicsure 2 is a copy of slides used in the meeting.

The licensee presented its plans and justification for deferring a part of the inspection of the Division II diesel generator as outlined in Enclosure 2. The part of the inspection not completed in the first refueling outage will be com-rieted in the second refueling outage. The second fuel cycle is 12 months long.

The inspection plan for the first refueling outage as presented in this meeting is more extensive than that proposed in the June 7, 1986 submittal. The staff inquired whether a materials test could be performed to ascertain that materials used in critical components are within specified limits. The licensee said that a materials test could be made for a representative sample of the components.

The licensee said that if the partial inspection results in the finding of significant failures, of certain components, then inspection of additional com-ponents would be made.

After a caucus the staff said that the additional inspections discussed in the meeting, when considered together with the inspections proposed in the June 7, 1986 letter appeared to be acceptable. The licensee agreed to file a letter providing the supplementary information presented in tne meeting for the staff's consideration in completing its review. The staff indicated that the supplementary information should include a description of a materials test and a commitment that any finding of a significant failure during the inspection will be reported to the staff for reconsideration of whether inspection of all critical components should be made during the first refueling outage.

Orwegges~gy 1

L. L. Kintner, Project Manager l BWR Project Directorate No. 4 i Division of BWR Licensing t

Enclosures:

i As stated DISTRIBUTION l GooheefMe, Young,0GC(;ethesda) l cc w/ enclosures: NRC PDR EJordan See LPDR BGrimes i f(page '

PD#4 Rdg. ACRS(10) l PD#4 PD#4/D WButler Mtg participants LKintner:lb WBut r LKintner 08/gi/86 08 86 M0'Brien 8608270437 860825 PDR ADOCK 05000416 S PDR

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Mr. Oliver D. Kingsley, Jr.

Mississippi Power & Light Company Grand Gulf Nuclear Staiton cc:

Robert B. McGehee, Esquire The Honorable William J. Guste, Jr.

Wise, Carter, Child, Steen and Caraway Attorney General P.O. Bcx 651 Department of Justice Jackson, Mississippi 39205 State of Louisiana Baton Rouge, Louisiana 70804 Nicholas S. Reynolds, Esquire Bishop, Liberman, Cook, Purcell Office of the Governor State of Mississippi and Reynolds 1200 17th Street, N.W. Jackson, Mississippi 39201 Washington, D. C. 20036 Attorney General

' Mr. Ralph T. Lally Gartin Building Manager of Quality Assurance Jackson, Mississippi 39205 Middle South Services, Inc.

P.O. Box 61000 Mr. Jack McMillan, Director New Orleans, Louisiana 70161 Division of Solid Waste Management' Mississippi Department of Natural Mr. Larry F. Dale, Director Resources Nuclear Licensing and Safety Bureau of Pollution Control

- Mississippi Powe- & Light Company Post Office Box 10385 P.O. Box 23054 Jackson, Mississippi 39209 Jackson, Mississippi 39205 Alton B. Cobb, M.D.

Mr. R. W. Jackson, Project Engineer State Health Officer Bechtel Power Corporation State Board of Health 15740 Shady Grove Road P.O. Box 1700 Gaithersburg, Maryland 20877-1454 Jackson, Mississippi 39205 Mr. Ross C. Butcher President Senior Resident Inspector Claiborne County Board of Supervisors U.S. Nuclear Regulatory Connission Port Gibson, Mississippi 39150 Route 2, Box 399 Port Gibson, Mississippi 39150 Mr. .Ted H. Cloninger Vice President, Nuclear Engineering Regional Administrator, Region II and Support U.S. Nuclear Regulatory Commission, Mississippi Power & Light Company 101 Marietta Street, N.W., Suite 2900 Post Office Box 23054 Atlanta, Georgia 30323 Jackson, Mississippi 39205 Mr. J. E. Cross Grand Gulf Nuclear Station Site Director Mississippi Power & Light Company P.O. Box 756 Port Gibson, Mississippi 39150 ,

Mr. C. R. Hutchinson GGNS General Manager Mississippi Pcwer & Light Company Post Office Box 756 Port Gibson, Mississippi 39150

. Enclosure 1 Attendees MP&L - NRC Meeting March 6, 1986 Name Affiliation L. L. Kintner BWD4/ DBL /NRR R. Bernero Director, DBL C. Berlinger Chief, RSB, DPLA G. Lainas DBL J. Kudrick PSB/ DBL Jerry Hulman Chief, PSS/ DBL A. Notafrancesco PSB/ DBL

, W. R. Butler Director, BWD-4, DBL R. J. Deese Duke / MATS R. Caruso BWD4/ DBL R. S. Lewis MP&L Emmett Murphy NRC/NRR/0 RAS Lee Swanger Failure Analysis Associates Jim Cross MP&L Bill Angle MP&L Oliver Kingsley MP&L Guy Ceasare MP&L a

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Enclosure 2 s .

NRC/MPEL MEETING AUGUST 6, 1986 GGNS DIVISION II EDG PROPOSED PARTIAL DEFERRAL OF DR/0R INSPECTIONS I. OVERVIEW, OUTAGE PLANNING .0. D. KINGSLEY, JR.

PHILOSOPHY AND ROLE OF PROPOSED DEFERRAL II. OVERVIEW 0F DR/QR REPORT C. W. ANGLE III. BASIS FOR DEFERRAL C. W. ANGLE IV. CONNECTING R0D INSPECTIONS C. W. ANGLE /

L. A. SWANGER wt _( FAAA)

V. FEASIBILITY FOR USE OF HPCS EDG AS J. E. CROSS ALTERNATE POWER SUPPLY FOR DIVISION II LOADS VI. CONCLUSION 0. D. KINGSLEY, JR.

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4 I, 0VERVIEW, OUTAGE P ANNING PHILOSOPHY AND ODK' RULE UF PRUPUSED D :FERRAL

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0 MP8L OUTAGE PLANNING PHILOSOPHY REFUELING OPS CRITICAL PATH 0 RF01 CONTROLLED BY SEQUENTIAL DIVISION I AND II EDG WORK MAJOR WORK ALSO REQUIRED FOR

, DIVISION III HPCS EDG 0 RF01 OUTAGE STRATEGY / IMPROVEMENT EFFORTS j- - ' -

CONSTANT EFFORT OVER LAST 12 MONTHS TO AFFECT MORE EFFICIENT SCHEDULING /

) EFFICIENT LOGIC '

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FALL 1985 OUTAGE '

1 0 ROLE OF DIVISION II EDG PARTIAL DEFERRAL 1

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DOC - 2 i i n.

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II. OVERVIEW 0F DR/0R EFFORT AND REPORT CWA 0 GENERIC PROBLEM RESOLUTION OF 16 MAJOR COMPONENTS (PHASE I QUALITY REVALIDATION) 0 DESIGN REVIEW OF 150-170 SUBCOMPONENTS (PHASE II) 0 MAINTENANCE / SURVEILLANCE PROGRAM, APPENDIX 11 0 OVERALL ACCOMPLISHMENTS OF PROGRAM DR/0R PROGRAM HAS RESULTED IN EXTENSIVE AND COMPREHENSIVE DESIGN AND QUALITY REVIEW OF ALL TDI

%. NUCLEAR SERVICE ENGINES.

INSPECTIONS HAVE CONFIRMED THE -

ADEQU^^Y OF V-16 ENGINES.

ADDRESSED GENERIC AND PLANT SPECIFIC ITEMS, INCLUDING DESIGN, MATERIAL, QUALITY, MAIN'ENANCE SCHEDULES AND INSPECTION FFEQUENCIES.

O PROGRAM REPRESENTS SUBSTANTIAL COORDINATION OF EFFORT AND TECHNICAL RESOURCES BETWEEN

UTILITIES, CONSULTANTS AND NRt'.

O MAJOR PROGRAM EFFORT CULMINATED IN THE ISSUANCE OF THE RESULTS OF MANY TECHNICAL ANALYSES, DESIGN AND MATERIAL EVALUATIONS 0 CONTAINED IN THE DROR, PNL, FAAA AND SER REPORTS 0 MP8L IS COMMITTED TO THE IMPLEMENTATION OF THE PROGRAM INCLUDING THe MAINTENANCE /

SURVEILLANCE PROGRAM o

DOC - 3 (3)

. 1 III BASIS FOR PROPOSED DEFERRAL ON DIVISION II EDG CWA A. CONSIDERATIONS j

0 SAFETY AND RELIABILITY FOREMOST IN  ;

CONSIDERING DEFERRAL REQUEST 1

0 OG PROGRAM HAS SHOWN FA'/ORABLE INDUSTRY INSPECTION HISTORY ON NUCLEAR SERVICE >

TDI ENGINES (INCLUDING V-16S)  !

O IMPRESSIVE DATA BASE FROM INSPECTIONS '

AND RECENT EXPERIENCES FORMED BASIS FOR .

ESTABLISHING CONFIDENCE IN THE V-16 l ENGINE OPERABILITY AND TEMPORARY DEFERRAL REQUEST FOR COMPLETE

• T DISASSEMBLY OF ENGINE AT RF01  !

O APPROXIMATELY 6,000 COMPONENTS EVALUATED  !

OR INSPECTED ON ABOUT 35 EDGS l 0 220 CONNECTING RODS IN NUCLEAR SERVICE I INSPECTED FOR EXAMPLE, WITH ONLY 2 i DEVIATING CONDITIONS VERIFIED I

. t 0 Iti GGNS RF01, A LARGE PORTION OF i DIVISION II EDG MMOR COMPONEffTS ARE TO  !

BE INSPECTED AS WELL AS DRQR ITEMS WHICH i ALSO WILL BE IMPLEMENTED 0 SELECTED ON BASIS OF HIGH STRESS OR i TORSION /.L LOADS O INSPECTION SCOPE MAY BE EXPANDED BASED f ON RESULTS 0 OVER 1500 NDE It!SPECTIONS EXPECTED TO BE MADE 4

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e III. (CONT'D)

B. TDI OWNERS GROUP R VIEW / CONCURRENCE O FAVORABLE NUCLEAR INDUSTRY INSPECTION HISTORY PLAYED KEY ROLE O TECHNICAL REVIEW CONDUCTED BY OWNERS GROUP TECHNICAL STAFF 0 OWNERS GROUP EXECUTIVE C0ft11TTEE CONCURRED BASED ON TECHNICAL REVIEW C. FAWRABLE INSPECTim/0PERATING HISTORY ON CGIS DIVISION I AND DIVISION II EDGS

' SEVERAL DISASSEMBLIES, INSPECTION, O

REFURBISWENT ACTIVITIES PERFORMED WITH 111E ACCUrilLATION OF SIGNIFICANT BASELINE DATA 0 LATEST - DECEMBER 83 FOR DIVISION 11

- JULY 198ll FOR DIVISION I 0 FAVORABLE RESULTS ON COMPARATIVE EVALUATION OF BOTH EDG'S REGARDING AS-MANUFACTURED QUALITY D. DIVISION II EDG TOTAL RUN TIT AT R:02 LESS THAN DIVISION I EDG AT 5/814 TEARDOWV/

INSPECIION O DIVISION II B)G RUN TIME AT ELEVATED LOADS SIGNIFICANTLY LESS THAN DIVISION'I O MP&L RESTRICTS ENGINE LOAD TO 165 REP (82% OF FULL LOAD) 0 ANTICIPATE LOW NUtGER OF ADDITIONAL HOURS TO RF02

IV.

CONNECTING ROD INSPECTIONS . CWA o FOUR DISASSEMBLED RODS TO BE INSPECTED IN ENTIRETY AT RF01 IN ACCORDANCE WITH DKLK REC 0fNENDAT10NS.

O FOUR ASSEMBLED RODS TO BE INSPECTED AS GIVEN BELOW.

0 QUALITY PEVAf.IDATION CRITERIA FOR PARTIAL INSPECTION (F0UR (4) ASSEMBLED RODS)

RF01 RF02

.SSSEMBLE AND REVIEW EXISTING DOCUMENTATION. X PERFORM AN EDDY CURRENT TEST ON ALL R0D BOX X T FEMALE THREADS.

PERFORM A MAGNETIC PARTICLE TEST ON ALL X II) X)I2 CONNECTING ROD 30LTS.

PERFORM A VISUAL INSPECTION ON ALL CONNECTING X W X O

ROD BOLT WASHERS AND CONTACT SURFACES FOR SIGNS OF GALLING.

VERIFY THAT THE TORQUE LOADS ON ALL THE X CONNECTING ROD BOLTS ARE IN ACCORDANCE WITH THE LATEST TDI RECOPEENDED VALUES.

PERFORM A LIQUID PENETRANT TEST ON THE SURFACE X l OF THE INTERNAL DIAMETER OF ALL WRIST PIN -

BUSHINGS.

PERFORM A VISUAL INSPECTION OF THE RACK TEETH X CONNECTION FOR SIGNS OF FRETTING.

PERFORM A CLEARANCE CHECK OF THE LINK RODS AND X LINK PINS FOR PROPER ALIGtNENT. .

4 MEASURE CENTERLINE BOW X 0 DR. LEE SWANGER WILL DISCUSS TECHNICAL JUSTIFICATION FOR DEFERRALS.

NOTES: ,

1. TOP FOUR (4) BOLTS

2. BOTTOM TWO (2) BOLTS DOC 5

IV (C0fTf'D) CONN ROD INSKCTIONS 4

BOLT HOLES FOUR (4) DISASSEMBLED RODS TO BE INSPECTED BY EDDY CURRENT (E.C.)

FOUR (4) ASSEMBLED RODS TO BE INSPECTED BY E.C. WITH SPECIALLY FABRICATED HARDWARE.

METHOD AND ADAPTERS SATISFACTORILY DEMONSTRATED AT FAAA FACILITY.

MATERIALS CONN RCD MASTER AND LINK BOXES MATERIAL RECORDS WERE VERIFIED AND 3-VERIFIED TO BE OF PROPER PHYSICAL N O CHEMICAL PROPER 11ES.

MATERIAL CERTIFICATIONS HAVE BEEN REVIEWED BY BECHTEL, THE OWNERS GROUP, AND MORE RECENTLYIPal AND FOUND TO BE ACCEPTABLE.

DOCUMENTED IN DROR AND VENDOR DOCUMENTS RECENTLY. ADDED VERIFICATION PROMPTED BY SAN ONOFRE INCIDENT.

DESIGN DRAWINGS, PROCESSES, MANUFACTURING RECORDS REVIEWED AND

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CONCLUDED BOTH Div1SION I AND DIVISION 11 HAD SIMILAR AS-MANUFACTURED QUALITY.

MATERIALS JUDGED TO BE SATISFACTORY BASED ON THE REVIEWS.

(DNCLUSION HIGHEST PRIORITY ITEMS WILL THEREFORE BE INSPECTED AND VERIFIED TO BE SATISFACTORY FOR ALL CONN RODS.

100% INSPECTION OF FIVE (5) HIGHEST PRIORITY ITEMS FOR ALL EIGHT (8) CONN RODS.

50% INSPECTION OF LOWER PRIORITY ITEMS DURING RF01.

. V. FEASIBILITY OF USING HPCS EDG AS ALTERNATE JEC POWER SUPPLY FOR DIV. 11 LOADS 0 WOULD REQUIRE MAJOR REVISION TO OUTAGE PLANNING LOGIC ESTIMATED MAXIMUM THEORETICAL ADVANTAGE OF TWO DAYS AVAILABILITY OF HPCS EDG SUPPORT SYSTEMS IS CONSTRAINING 0 IMPLEMENTATION NUMEROUS TEMPORARY DESIGN ALTERATIONS 3~

DISCONNECTION OF PREFERRED OFFSITE POWER FEED DISABLING OF NUMEROUS INTERLOCK FEATURES IMPLEMENT ONLY UPON LOSS OF 0FFSITE POWER (EFFECTIVELY STATION BLACK 0UT)

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MAY INVOLVE UNREVIEWED SAFETY ISSUE O SPECIAL TESTING MAY BE REQUIRED TO DEMONSTRATE ADEQUACY OF POWER SUPPLY TO CARRY SELECTED LOADS 0 TRAINING / PROCEDURES / STAFFING TO SUPPORT IMMEDIATE IMPLEMENTATION O RESTORATION OF PREFERRED POWER (UPON REGAINING OFFSITE POWER) MORE COMPLEX AND TIME-CONSUMING 0 PARALLEL INSPECTION OF DIVISION I AND 3

DIVISION 11 EDGS ESSENTIALLY DOUBLE MP8L AND CONTRACTOR MANPOWER REQUIREMENTS -

MECHANICS, INSPECTORS, AND QUALITY PERSONNEL (AND TOOLS)

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! VI, OVERALL CONCLUSION ODK 0 TECHNICALLY JUSTIFIED

- REPRESENTATIVE, HIGHLY STRESSED COMPONENTS TO BE INSPECTED DURING RF01

- DIv, II EDG ENGINE LOAD LIMITS AND ENGINE RUN TIME SUPPORT DEFERRAL DROR INSPECTION EXPERIENCE HAS PROVIDED

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CONFIDENCE REGARDING MATERIAL QUALITY, NOT PREVIOUSLY AVAILABLE TO DROR 1005 INSPECTION ON FIVE (5) MOST IMPORTANT

, ITEMS OF CONNECTING RODS O TDI OG TECHNICAL REVIEW AND CONCURRENCE O REASON FOR REQUEST PREVIOUSLY DISCUSSED

0 REQUEST PROMPT NRC REVIEW AND APPROVAL I

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