05000259/LER-1985-049, Corrected Page 1 to LER 85-049-00:on 850623,during Performance of Work on Diesel Generator Battery Racks, Several Rack Support Studs Found Broken.Caused by Use of Stud Matl Not Suitable for Welding

Corrected Page 1 to LER 85-049-00:on 850623,during Performance of Work on Diesel Generator Battery Racks, Several Rack Support Studs Found Broken.Caused by Use of Stud Matl Not Suitable for Welding

ML20138G336
Person / Time
Site:	Browns Ferry
Issue date:	10/25/1985
From:	Steve Jones, Robert Lewis TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF ADMINISTRATION (ADM)
References
LER-85-049-01, LER-85-49-1, NUDOCS 8512160293
Download: ML20138G336 (2)

LER-2085-049, Corrected Page 1 to LER 85-049-00:on 850623,during Performance of Work on Diesel Generator Battery Racks, Several Rack Support Studs Found Broken.Caused by Use of Stud Matl Not Suitable for Welding

Event date:
Report date:
2592085049R00 - NRC Website

text

3 0

Form 3es , , U 5. NUCLEAR f.EGULATOAY COMMISSION APPROVED OMB NO 3150 0104 EXPIRES 8'31 SB LICENSEE EVENT REPORT (LER)

\ s F ACILITY NAACE Hi DOCKET NUMAER (2) PAGEe3s Browns Ferry - Unit 1 o is to lo lo!2 is 1 9 i lorl cjl 3

" ' ' ' ' ' ' Inoperability of Diesel Generators Because of Seismically Unqualified Battery Racks EVENT DATE 16l LER NUMBER 14) REPORT DATE (7' OTHER F ACILITIES INVOLVED 18)

MONTH DAY YEAR vfAR

UNH OM WEAR FCW WH MW MMO "OU , f, Browns Ferry - Unit 2 01510l01 0 12 16IO

( 0I6 2I1 8 5 8I 5 0l4l9 0l0 1l 0 2ls 8 l5 Browns Ferry - Unit 3 o l 5 l0 l o l o D I 916 18 SM ED MWAM M NE RWREMEW OF M CFR g (M m w enn .F m. rmwg H H OPE R ATING I# 20 402(bl 20.496tsi 60 73,all2)let 73.71(bl N

R 20 406taH1)(el 6136teHH 60.73taH2Hvl 73.71(si H AD 0 01 Ol 0l p 20 406teH1Hel

{ 60 3steH2) 60.73tsil2Hvkl IS ,

20 4061eH1Hei) 60.734al(2Hil 60 73:eH2HveiaH&l J66Al 20 406(ein H6vt X 60.73tsH2Hul 60.73teH2HveHBI 20.406teH1Het 60.73(al'Il{m) 60 731sH2Hs)

LICENSEE CONTACT FOR THl$ LER {121 -

NAME TELEPHONE NUYBER ARE A CODE Stephen B. Jones. Compliance Engineer 210 15 7121 91-1215 1318 COMPLETE ONE LINE FOR E ACH COMPONENT F AILURE OCBCatiSED IN THIS REPORT 1138

"' ' ' L M# 'AC REPORTA LE CAUSE Sv3 TEM COMPONENT TO PR $ CAU$E Sy fTEY COveONENT ER T

! I I I I i 1 1 1 1 I I I i 1 I I I I I I I I I I I I f SUPPLEMENTAL REPORT EXPECTED 1141 MONTM DAv YEAR 4 E5 III p.s. comer. e EXPECTED SU8 set 35 TON DA TEP NO l l l A.m Ae, w~, ,. , a ... . , ,,,, .,. . ,-.. , - H 6, During perfonnance of work on the diesel generator (DG) battery racks, several battery rack support studs were broken. On June 23. 1985, during a post maintenance review of a maintenance request used to repair the DG battery rack stud, it was detennined that the weld repair procedure used was not suitable for the welding of American Society for Testing and Materials (ASTM) A-307 material.

Subsequent investigations discovered the stud material used on the battery racks was not ASTM A-307 material but ASTM A-325 material which is not suitable for welding by TVA procedures. . The DGs were declared inoperable on September 24, 1985, because of the battery rack studs seismic concerns and an unrelated surveillance problem (LER 259/85041). The DG battery racks were brought into a seismically qualified configuration by installation of studs made of a material qualified for the application.

8512160293 851025 9 DR ADOCK 050 d

y,R;,-- == Il

• / ' - --

TENNESSEE VALLEY AUTHORITY Browns Ferry-Nuclear Plant P.O. Box 2000 Decatur, Alabama 35602 December 5, 1985 U.S.1 Nuclear Regulatory Commission Document Control Desk Washington, D. C. 20555

Dear Sir:

TENNESSEE VALLEY AUTHORITY - BROWNS FERRY NUCLEAR PLANT (BFN) UNIT 1 -

DOCKET.NO. 50-259 - FACILITY OPERATING LICENSE DPR REPORTABLE 0CCURRENCE REPORT BFRO-50-259/85049.

A typographical error was made on page 1 of Licensee Event Report 259/85049 dated October 25, 1985. Please replace with the enclosed corrected _page.

Very truly yours, t

TENNESSEE VALLEY AUTHORITY

~ 61 b o rt L. Lewis Acting Plant Manager Browns Ferry Nuclear Plant Enclosures

-cc-(Enclosures):

Regional Administrator- INPO Records Center U.S. Nuclear Regulatory Commission Suite 1500 Office of Inspection and Enforcement 1100 Circle 75 Parkway Region II .

~ Atlanta, Georgia 30339 101 Marietta Street Suite 2900 Atlanta, Georgia'~30303 NRC Resident Inspector, BFN 1983-TVA SOTH ANNIVERSARY' EGL1 An Equal Opportunity Employei

-