ML20138Q128
| ML20138Q128 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 12/06/1985 |
| From: | Kintner L Office of Nuclear Reactor Regulation |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8512270059 | |
| Download: ML20138Q128 (5) | |
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jo UNITED STATES
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WASHINGTON, D. C. 20555
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DEC 6 19t6 Docket No. 50-416 LICENSEE: Mississippi Power & Light Company (MP&L)
FACILITY: Grand Gulf Unit 1
SUBJECT:
SUMMARY
OF NOVEMBER 14, 1985 MEETING REGARDING INSPECTION OF s
TDI EMERGENCY DIESEL GENERATOR 11 The purpose of the meeting was to clicrve ard discuss the Transanerica Delaval, Inc. (TDI) Emergency Diesel Generator No.11 which was damaged in an everspeed event. The engint het teer disassembled for inspection er.o essessnent of the damage to corrpercr.ts of the engine. Enclosure 1 is a list of attendees at the raeeting.
Or. November 6, 1985, the emergency diesel generator had an overspeed evert during a post-raaintenance test followir4 preventative maintenance on the governor for the diesel engine. The plant was in operational condition 4, cold shutdown, at the tirae of the overspeed event.
The licensee bed disassembled most of the engine by the time of the November 14 neeting. Several components, inclucing raain bearings, connecting rod ber. rings and link pin bushings, showed esidence of overheating and damage. The base was cracked between the bearing cap stud holes and the owel pin hole and between the dowel pin hole cno the saccle surface. Licensee plans to cortpletely disas-semble the engine for inspection and replace all damaged parts. All main bearings, connecting rod bearings and link pin teshings will be replaced even though soae co not show visible evidence of damage. Two connectino rods will be replaced-one that was damaged in the event and one that was danaged during disassembly.
Licensee has hired Failure Anclysis Associates to determine the extent of base crackir.g end corrective measures necded, if any.
Licensee believes that one of the causes of the overspeed event was that there was air in the governor cil system after the governor was put back on the engine and hydraulic lines were reconnected. The governor was filled after installation to the " full" indicetion on the sight glass. However, air was not vented from the system and sufficient oil was not added prior Dock $ggg 20 I
. to the initial start. After the event about 750 nilliliters of oil were removed from the governor. The Woodward governor was sent to the vendor ifor tests, including operation with 750 milliliters of oil. Licensee noted during the event that the fuel rack operated and closed several tines, j
indicating erratic operation of the governor.
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, Original Signed by L. L..Kintner, Project Manager i
BWR Project Directorate No. 4 Division of BWR Licensing
Enclosure:
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-As stated.
cc: See next pace
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DISTRIBUTION Quacket g lea NRC PDR I
-Local PDR PD#4 Reading
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WButler LKintner Young, OELD i-EJordan BGrimes ACRS (10)
NRC Participants I
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- Previously concurred:
D#4/PM CPB PD#4/PD Kintner:lb
- CBerlinger WButler Is()
112/g/85 12/02/85 12/h/65 i
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. to the initial start. After the event about 750 milliliters of oil were ren,oved f rom the governor. The Utodwerd governor was sent to the vendor for tests, including operation wite 750 milliliters of oil. Licensee noted during the event that the fuel rack operated and closed several times, indicating erratic operation of the governor.
4 i
I L. L. Kintner, Project Manager 1
BWR Project Directorate No. 4 i
Division of BWR Licensing l
Enclosure:
As stated i
cc: See next past 1
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Mr. Jackson B. Richard
-llississippi Power & Light Company Grand Guit f4uclear Staiton cc:
Robert B. McGehee, Esquire The Honorable William J. Guste, Jr.
Wise, Carter, Child, Steen and Caraway Attorney General P.O. Box 651 Department of Justice Jackson,flississippi 39205 State of Louisiana Baton Rouge, Louisiana 70804 Nicholas S. Reynolds, Esquire Bishop Libennan, Cook, Purcell Mr. Oliver D. Kingsley, Jr.
and Reynolds Vice President, Nuclear Operations 1200 17th Street, N.U.
Mississippi Power & Light Company Washington, D. C.
20036 P.O. Box 23054 Jackson, Mississippi 39205 Mr. Ralph T. Lally Manager of Quality Assurance Office of the Governor Middle South Services, Inc.
Stete of riississippi P.O. Box 61000 Jackson, Mississippi 39201 f.ew Orleans, Louisiana 70161 Attorney General Mr. Larry F. Dale, Director Gartin Building Nuclear Licensing and Safety Jackson,flississippi 39205 Mississippi Power & Light Company P.O. Box 23054 Mr. Jack f*cMillan, Director Jackson, Mississippi 39205 Solid Waste Mississippi State Ecard of Health Mr. R. U. Jackson, Project Engineer 880 Lakeland Bechtel Power Corporation Jackson,liississippi 39206 15740 Shady Grove Road Gaithersburg, Maryland 20760 Alton B. Cobb, M.D.
State Health Officer Mr. Ross C. Butcher State Board of Health Senior Resident Inspectnr P.O. Box 1700 U.S. Nuclear Regulatory Commission Jackson, !!ississippi 39205 Route 2, Box 399 Port Gibson, Mississippi 39150 President Claiborne County Board of Supervisors Regional Administrator, Regicn II Port Gibson, Mississippi 39150 U.S. huclear Regulatory Commission, 101 Marietta Street, N.W., Suite 2900 Atlanta, Georgia 30323
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Mr. J. E. Cross, Gereral Manager Grand Gulf Nucle 6r Station Mississippi Power & Light Company P.O. Box 756 Port Gibson, Mississippi 39150 i
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Enclosure NRC - 11P&L Meeting, 11-14-85
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liene Affiliation Title R. Butcher NRC SRI J. L. Caldwell NRC Resident Inspector Carl Berlinger NRC/NRR Emmett Murphy HRC/NRR Steve Lewis MP&L/NMP Materials Eng.
John Muellen MP&L/ Plant Staff Mechanical Supt.
Randy Hutchinson MP&L/ Plant Staff Jim Cross MP&L/ Plant Staff Ted H. Cloninger MP&L/Nuc. Engr.& Construction Rod Mcomaw MP&L/ Plant Staff Fred Adcolec f1P&L/NPE Fred Tins MP&L/NPE H. H. Lowrey TDI figr Design F. E. Bryan MP&L/f!PE Eng.
G. Sandlin NMP& Lic Enn Ron Black MP&L/NPE Engr Suprv.
Bill Angle MP&L NPE Prircip61 Engr.
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