ML20009F136

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Requests Info on Unresolved Safety Issue A-44 Re Station Blackout.Questionnaire & LER Documentation Encl
ML20009F136
Person / Time
Site: La Crosse File:Dairyland Power Cooperative icon.png
Issue date: 07/20/1981
From: Crutchfield D
Office of Nuclear Reactor Regulation
To: Linder F
DAIRYLAND POWER COOPERATIVE
Shared Package
ML20009F137 List:
References
REF-GTECI-A-44, REF-GTECI-EL, TASK-A-44, TASK-OR LSO5-81-07-056, LSO5-81-7-56, NUDOCS 8107290238
Download: ML20009F136 (15)
v • d • e


Text

{{#Wiki_filter:- ( /$ f Q Docket No. 50-409 ggtY '/ ( LS05-81-07-056

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Dear l'r. Linden:

Sub. pct: Infomation Request Regardi19 Station Blackout, Unresolved Safety Issue A-44, Lacrosso Boiling Mater peactor The TIRC staff is currentiv addressing Unresolved Safety Issue (USI) A-44, Station Blackaut. The purpose of this work is to establish the safety sicnificance of an event resulting in a less of all alternating current power and, if significant, to consider the need for any spec'.fic changes. Over the past several years *nforriation requests have been forwarded which requested infernation that is being used in the USI analysis. Your interest and coope; Ttion in the past have been appreciated. At this time the USI A-44 affort is being directed toward detemining the reliability of the ordite standby diesel generators. The enclosed questionnaire has been prepared to pro'/ide accurate operating experience to serve as a basis for such a deteminLtion. More specifically, its purpose is to obtain note det311ed data i.han were available in previous diesel generator studies such as AEC-00E-ES-002, NUREG/CR-C660, and I;UREG/CR-1362. The questionnaire (enclosure 1) requests infornation in tabular fom and solicits data for the years 1976 through 193C, inclusive. There are four tables enclosed: (1) Diesel Cenerator Operaticns Data, (2) Diesel Cencrator Scheduled Down Tine Pecord, (3) Diesel nenerator Unscheduled Down TW Record, and (4) Onsite Ernergency Ciesel Generator and Auxiliary Equipment ?'odification Record. Also enclosad are examples of conpleted tables as well as a clarification of what should be entered. Pleasa note that, although it may appear that only Licensco Event Report (LER) infomation is sought, datc on al! diesel generator ralfunctions, independent of whether en LER was prepared, is requested, please find endosed LER docunentition (enclosure 2) presently docketed for your facility. You are requested to review these and to indiceta if there are other reports which have not been enclosed. Finally, please find enclosed a copy of the appropriate portions of your response (enclosure 810729L238 G10720 PDR ADOCK 05000409 F PDR omu> s04 % cary snc,om m oaM mcu am OFFICIAL RECORD COPY umn _m u

v Mr. Frank Linder UULY t 6 het

3) to our letter of March 6,1978 which requested related, but different, information. This is being forwarded for your Infomaticn only and should aid in preparing Tables 1 through 4 In consideration of the tine and effort necessary to c,btain this infomation, the completion of Table 4 should be considered voluntary. Powever, it should be noted that if operational and hardware modifications are not identified, the pcsitive or negative influence of these features on energency altern ting current power reliability may be lost in the evalration of the data. The expected effect is that cur generic reliability estimates may be lower than that which actually exists.

The above infomation is reonested in accordance with Sections 103.b.(3) and 161.c of the Atomic Energy Act of 19S4, as amended. To nect our schedule m1uirenents for the resolution of USI A-44 and to incorpo: ate as much real. experience as possible into the reliability model for enerqency power systers, it is requested that your response be provided within 120 days of the receipt of this letter. However, if this schedule is inconsistent with prfority requirements for other ;icensing work, please provide us with your proposed date of responn within 30 days. We plan to complete our analysis of this data by February 1982. Your data should be provided by that time so that an accurate assessment of onsite alternating current power sources can be made. Mr. P. Baranowsky has been designated Task f'anager for USI A-44. Should you have any questions, please feel free to contact him at (301) 443-5921. Your time and efforts are appreciated. DISTRIBUTION Decket File 50-409 J. Roe Sincerely, NRC & Local PDRs J. Heltemes OW W D M@ ng D. Eisenhut I&E (3) Dennis M. Crutchfield,CDL&6f R. Purple ACRS (16) Operating Reactors Branch #5 Lainas K. Kniel Division of Licensing ^ U. Crutchfield P. Norian

Enclosures:

F. Schroeder As Stated T. Murley P. Baranowsky cc: w/ enclosures J. Butts See next paqe This request for infernacion was approved by the Office of flanacement and Budget under clearance ntmber 3150-0067 which expires May 31, 1933. Corrents en burden and duplication nay be directed to the Office of Management and Budget, Washington, D. C.

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.-.y...-...-.. 9 ~ Mr. Frank Lindai ' 1-July 20 1981 cc w/encidsures: Fritz Schubert, Esquire U. 5. Environmental Protection Staff Attorney Agency Dairyland Power Cooperative Federal Activities Brancte 2615 East Avenue Soutit Region V Office La Crosse,. Wisconsi. 54601 ATTN: EIS COORDINATOR 230 South Dearborn Street O. S. Heistand, Jr., Esquire Chicago, Illinois.60604 Morgan, Lewis & Bockius 1800 M Street, M. W. Mr. John H. Buck Washington,. D. C. 20036. Atomic Safety and Licensing Appeal Board U. S. Nuclear Regulstory Comission Mr. R. E. Shimshak Washington,D. C. 20555 La Crosse Boiling Water Reactor Dairyland Power Cooparative Dr. Lawrence R. Quarles P. O. Box 135 Kendal at Longwood, Apt. 51 Genoa, W!sconsin 54632. Kenneth Square, Pennsylvania 19348 Ms. Anne K. Morse Charles Bechhoefer, Esq., Chairman Coulee Region Energy Coalition Atomic Safety and Licensing Board P. O. Box 1583 U. S. Nuclear Regulatory Comission La Crosse, Wisconsin 54601 Washington, D. C.- 20555 La Crosse Public Library Dr. George C. Anderson 800 Main Street Department of Oceanography La Crosse, Wisconsin 5460T University of Washington Seattle, Washington 98195 U. S. Nuclear Regulatory Comission Resident Inspectors Office Mr. Ralph S. Decker Rural Route #1, Box 276 Route 4, Box 1900 Genoa, Wisconsin 54632 Cambridge, Maryland 21613 Town Chairman Thomas S. Moore i Town cf Genoa Atomic Safety and Licensing Appeal Board Route 1 U. S. Nuclear Regulatory Comission Genoa, Wisconsin 54632 Washington, D. C. 20555 Cnairman, Public Service Comission of Wisconsin Hill Farms State Office 3uilding Madison, Wisconsin 53702 Alan S. Rosenthal Esq., Chainen Atomic Safety and Licensing Appeal Board U. S. Nuclear Regulatory Comission Washington, D. C. 0555 i Mr. Frederick Milton Olsen, III 609 North lith Street Lacrosse, Wisconsin 54601 j y -y. .w-,.----..r..- r_._r.--,_,m. ,_~-.,---_.,,,.-__..-..-.,-_-.,,m. ,-,-.,,.3y-,,-,-

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== =. - Erreiosure 1 - Pager5 TABtf t.Mifut:s expt.ANATTCR/Ct.ARTFTCATT0ft. ^ Table t Reason for DG Operatiotr and Scheduled Duration of Run: This colusur coce=M the different categories of diesel generator operation. The categories are structured. such that the scare and run conditions are similar for all of the tests in. a. category. In. this coluxur, enter the scheduled run duratiott for each of the test categories. Also enter the number of diesel generator starts that are done for each tyve of tasc. For example, if on the monthly case there is one scare from the local con-trols and one start from de remote controls, the curber of starts per test is two. If tve or more diesels art started simultaneously for any reason, please record it as a multiple starr. Enter each diesel generator's identification number 1:d this column DG No.: as shown in the example. Number of Starts: Enter the sum of the successful and unsuccessful stare actempts for each category. If thera are several starts for each test. include all of them, but be certain to raceri the number of starts per test in ColumEL or.4. Number of Failuces: Entee the sun of the failures for each category. A. failure is counted if the objectives of the test are noe achieved. A subsystem failure that does not cause failure of the diesel generator system is not counted as a. failure. If the diesel generator did not start, tun, and load as required by the test, a failure should be ceco rded. However, if the diesel generator would have supplied power in some capac1:7 for an emergency, please explain in Table 3. For example, if the diesel started on the second attempt or the diesel was tripped t0 repair a minor oil leak that would not have been a problem in an emergency, this should be noted in Table 3. Percent loading of JG 007): Enter the percentage chac the diesel is loaded for each category. The continuous kilowate rating is considered to be 100%. Duration of Run Before Stop for each DG Failure: Record the run-time for each failure. If the diesel failed to start, the run-et:ne vould be 0 min. Identificaciou of Failures: Attached to this questicenm9e are abstracts of the LEHs related to the diesel generacces. The abstracts are numbered starting with one. Refer to this staber to identify the failures, but if there was a failure for which there is no abstracr, assign the failure a nu:nber and include it in Table 3. Table 2 Reason for Downtime: Enter in this column the categories of schedule main-tenance that sake the diesel generator unavailable for emergency sere.ca. If the diesel generacer is unavailable for emergency sere.ca during surveillance testing, reporr that also.

b-n.... L. ---.-m a Enclosure I - Fage 6. 2. Table 2 (conc'd) Hours of Downtime: Enter the number of hours chac the diesel generator is unavailable for emergency service. Repor the hours under the column reactor shutdows or reactor noe shutdown as appropriate. Comments: c-c on ei:ne en return en service aftar maintan-e has begun, or other pertinent information. Table 3 LER. Abstrac: No. (Zafer en attached. LZlt Abstracts):- D e attached.LERs are numbered starting from one. Refer to this L22. = umber in column Each LER. abstra:: should. have an entry in this table. If one. chere was a failure not included in the attached abstrsets, please assign it a number and enter 1: ir. this table. Downtime Hours: En;:er the number of hours that :he diesel generator is unavailable for emergency service. Subdivide heast total hours into troubleshooting, parts delivery, and repair or replacement. Comments: Use this column to ecument on :he devotine and the failure. Jf cha reported failure was only a technical specificacien violation, but would noe be a complace failure of the diesel generator to s tpply power or would only be a delay, please elaborate h this T column. Table i Equipment or procedure modified: List in this column :he equip =ent or procedures related to ;he e:nergency onsits power systen thac have been sedified since the reactor became critical. Date of Mod.: Enter the date that the modification was completed. Reason for Modification and Desired I= prove:nent: Report the reason for the =odification and the desired or observed i=provement in the system. Description of Modification: 3riefly describe what =odificat:.on was made. 1 l 1

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? ~ c2/5/0000001-C000005// 1 PAGE 379 ACCESSION NO. 00ZO147214 TITLE O!ESEL GtNERATOR TRIPS ON OVERSPEED A T LACROSSE CORPAUTH DAIRYLAND POWER CCO PER A T IVE DATE 1979 TYPE O MEMO L TR w/LER 78-014 TO U.S. NHC. R EG ION 3. JAN 18. 1979. OCCKET 5G-*09. TY P E --6W R, MFG--AC, AE--S+L CONTROL--023505 AVAIL AVAILAb1LITY - NRC PubLIC DOCUMEN T ROOM. 1717 H STREET. W ASH I tag TON D.C. 20555. (06 /PAGE -- M I N I M U M CHARGE 52 001 ABSTR ACT DaTE OF EVEN T - 121578. POWER LEV EL - 049%. CAUSE - OVERSPEED SeITCH Sc7 TGO LOW. ObRING A SURVEILLANCE TEST ON THE IB EMENGENCY O t tS EL GENERATOR, THE UNIT TRIPPED ON INDICATED OVERSPEED. SUESEQUENT RESTAR TS WERE SATISFACTORY. THE PROBLEM

  • AS QUPLICATED ON D ECEMBER 18, 19 78.

THE UNIT WAS DECLARED I NOPER AOLE TO PERM 1 T REPAIRS. THE ELECTR IC OVERSPEED S*1TCH RELUIREu REA0 jus TMENT AS IT WAS SET A T 1980 RPM INSTEAD OF 2010-20td RPM. THC LOWE R SETPOINT CAUSED OVERSPEED TR I P S ON THE INITIAL CO LO STANT ONLY. THE SWITCH SETPOINT 4AS 4EADJUSTCD BY A REPRESENTATIVE OF THE M ANUFAC TUR ER. COMPONENT CODE I Nd TRU-INSTRUM EN T AT ION AND CON TR O L" SY S TE M CODE Ec-EMER G GENU,R ATOR SYS & CONTROLS C2/5/0000001-C000005// 2 ACCESSION NQ. 00101*GdGG TITLt DIESEL GENERATOR REMOVED FROM SERVICE FOR 01L CHANGE AT LA CROS3E COnPAUTH DA14YLAND POWER COOPERATIVE. LA CROSSE. WI OATE 1978 TYPE Q DEMO 4 PGS. LTR w /R O 73-10 TO NRC DIRECTOR ATE OF R EGULA TOR Y O PER A T I ON S. 4EGION 111. SEPT. 15. 1978. DOCAET 50-409. TYPE g=R. M FG --G E. AC --SG T G LUNDY AVAIL AVAILABILITY - NR C Pu6L I C DOCUMENT ROOM. 1717 H S TR EE T. . AsHI NG TGN. v. C. 20555 (06 CE N TS/P AGE -- MINIMUM CHAAGE si.00) ads TR ACT 0+TE OF EVENT - 0 o117d. POaER LEVtL - 81%. CAuSE - 01L 0; LUTED ALTH DIESEL FUEL OIL 1A O!ESEL GENERATOR WAS TAKEN OUT OF SEnVICE FCR 1 MOOR AND 12 M INU TES OURING GEACTOR OPERA TION TO CHANGE' ENGINE SUMP LUdE OIL. LUDE Oak wAS DILUTED WITH DIESEL FUEL U1L. P ARTI AL DILUT ION OF LUBE OIL 4AS A T TR I BU TE D TO R E S ! OV AL FU tL O ! L IN INJECTORS. FOLLOWING OIL CHANGE. TESTING WAS PERFORMED ON BOTH DIESEL G EN ER A TORS TO VERIFY OPEPAG ILI TY. COMPONENT CCDE ENGINt-ENGINES.1NTEENAL COMBUSTICN SY S TEM COub %detMERG GENbdATOR SYS G CONTROLS 42/5/C0C0C01-0C0C005// 3 ACCESSION NO. 0GZ0121290 TITLC STARTING T IM E. FOR DIESEL GENERATOR EXCEEDS LIMIT AT LACROSSE CORPAUTH DA!RYLAND POWER COR P., LA CROSSE. 41 DATE 1477 TYPE O MEMO J PG6. LiR 4/90 7o-16 TO NRC OIRECTORATE OF REGULATOR" UPEnATICNS. LEGION 111. JAN. 3. 1977, OOCKET 50-409. TYPE S wR. M FG-AC. A E --S GT G LONDY AJAIL AVAILAEILITY - NRC PUBL I C DOCUMENT ROOM. 1717 H STREET. WASHINGTON, U. C. 20543 (OS CEN TS/P AGE -- MINIMUM CHARGE AO.00) ADS TR ACT D aT E OF EVENT - 120376. POWER LEVEL - b5%. CAubE - COOL A NT HEAlcR INOPERABLE. OURING TESTING wtTH THE REACTOo AT SS% POWER. S T Ad T ING TIME FOR D I E SEL GENER A TOR 1A eAS 13 SECONOS. EACEECINu THE 10 SECGND LIMIT. THE 1500 WATT ELECTRIC I s Mha b t GN-TY PE HE AT ER IN THE COOLING SYSTEM JF THE ENGINE #AS IPOPERATIVE DU E TO A LOOSE POWER LEAD. THE WIaE HAD SEPARATED FROM ITS TERMINAL CGNNECTING LUG DOE TO A COMBINATION OF ENGINE VILHATION AND AN INCOMPLETE CRIMP OF THE LUG SLEEVE ON THE w !R E AT IHE T i r4E OF M ANU FACT URE CF THE HEATER ASSEMMLY. COMPO NL:4T CCLE HEA T ER -ME A T hkS.E LcC TR I C SYSTEM CODE 5E-EMERG CENLRATOR SY S & CCNTROLS 42/5/0000001-0000C05// 4 l ACCESSION NO. 0uZ0120*i2 i TITLE DIESEL FLtL OIL SAMPLES FAIL TO MCET TECH SPECS AT LA CROSSE COR P A UT H D A1 WYL AND P O *e d COOP.. LA CEOSSE. W1

.p. e CON TINUAT ION L PAGE 320 4 C2/5/0000001-0000005// DATE 1976 TYPE O w/RG 76-15 TO NRC DIRECTORATE OF REGULATORY MEMO o PGS. LTR OPERATIONS. REGION 111. NOV. Id. 1976. DOCKET S0-409. TYPE--eWR. M FG -A C. AE-SG T S LLNDY AVAIL AVAILAb1LITY - NRC PudLIC DOCUMENT ROOM. 1717 M STREET. w ASHINGTON. D. C. 20545 (08 CENTS /PAGE -- M I N I MUM CHARGE 32 00) ,ASSTHACT C AUSE - SAMPLE S TAKEN FRCM TANK B O TTOM. EMERGENCY DIESEL FUEL OIL SxM9LES TA KEN 4HILE THE RE ACTOR WAS SHUT DOWN DID NOT MEET THE TECH SPEC REQUIREMENTS FOA WATER AND SEOlkiNT CONTENT. 1HE O IL wAS PUMPLD OU T. T ANK S CLEANEO, AND REFILLED. SAMPLES HAD d CEN TAKEN F RO M THE AC TU A L TANK d O TTO M. THE BOTTOM A CT S AS A TRAP FOR SE T TLED w A TER AND SE01 MENT. THEREFORE. SAMPLES FROM HERE ARE NOT REPRESENT AT IVE GF THE FUEL OIL. THE INLET OF Ott SUCTION L INE S IS LOCATED A80ur 3 INCHES ABOVE THE BO T TO M. A REDEF INITION OF THE SAMPLE POINT IS DELNG SOUGH T. 42 / S / 0 0 000 01 -00 0 uo GS // S ACCESS 10N NO. 0040118750 TITLE EMERGENCY CitSEL GCNERATCR FAILS 1 CARRY FULL TEST LOAD AT LA CMOSSE CORPAUTH OA1RYLAND PO ndR COR P., LA CROSSE.

  • OATE 1976 TYPE G

MEMO 4 AGS. LTR w /R O 76-09 TO NRC OIRECTOR ATE OF R tGULA TORY GHERATILNS. RIGION 111. LCT. 15, 1976. GCCKET S0-409. TY P E --O w w. M FG -- A C. AE--SGT & LUNDY AVAIL AVAILABILITY - NRC PUBLIC COCUMENT ROOM. 1717 H STREET. mASHINGTON. D. C. 2054S (08 CEN TS/P A CE -- MINIMUM CHARGE 42.00) MANUAL FUEL C HU TOF F NOT RESET COMPLdTELY. OURING A AoSTRACT CAUSE TEST m1TH THd REACTCR AT 9*4 POWER. EMERGENCY DIESEL GENERATOR 13 FAILEO TO C AR R Y THC FLLL TEST LUAD. IN VE S T I G A T IO N FOUND THAT IME MANUAL FUEL SHUTOFF WAS NOT RESE T COMPLETELY OUE TO PAINT ON THe CON TROL CAoLE RESTRICTING IT S MOVEMENT. THE CABLc l MAS CLEANED AN O NORMAL ACTION R65TOREO. .}}

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