ML18113A261

LER 1976-028-00 for St. Lucie Unit 1, Hydrogen Sampling System Isolation Valves Update Report No. 1

ML18113A261
Person / Time
Site:	Saint Lucie
Issue date:	03/04/1977
From:	Schmidt A Florida Power & Light Co
To:	Moseley N NRC/IE, NRC/RGN-II
References
PRN-LI-77-57 LER 1976-028-00
Download: ML18113A261 (8)

Text

NRC FORM 195 12.76)U.S.NUCLEAR RFGULATORY COMMISSION DOCKET NUMBER TO: NRC DISTRIBUTION FDR PART 60 DOCKET MATERIAL FROM: FILE NUMBER INCIDENT REPORT DATE OF DOCUMENT DATE RECEIVED Q LETTER QORIGINAL QCOPV DESCRIPTION QNOTORIZED Q UN C LASS IF I E D PROP INPUT FORM ENCLOSURE NUMBER OF COPIES RECEIVED PLANT NAME: NOTE: IF PERSONNEL EXPOSURE IS INVOLVED SEND DIRECTLY TO KREGER/J, COLLINS BRANCH CHIEF: W 3 CYS FOR ACTION LIC, ASSTo: W CYS FOR ACTION/I NFORMATION p)Cm4n~ACRS g CYS~BTNG S'NT$'EG FTLE INTERNAL D ISTRI BUTION X&E (2 MIPC SCHROEDER/XPPOLXTO HOUSTON NOVAK/CHECK GRDIES CASE BUTLER HANAUER TEDESCO/MACCARY EISEiVHUT BAER SHAO VOLL1%R/BUNCH KRI?GER/J COLLXNS LPDR: TIC:~Ni7I o NRC FORM 196 (2.76)C~C4r EXTERNAL DISTRIBUTION CONTROL NUMBER gg~qgo3~d5 U Sr NUCLFAR RFGULATORV COMMISSION

• NRC FOQM 195 (2-76},i 4RC DISTRIBUTION FoR PART 50 DOCKET MATERIAL DOCKET NUMBER 50-335 FILE NUMBER TO: Mr.Norman g.Moseley FROM: Florida Power&Light Co Miami, Flao 33101 A D Schmidt DATE OF DOCUMENT 3-4-77 DATE RECEIVED 3-17-77 KILETTER QORIGINAL Kcor v ONOTORIZED ERINC LASS IF IE D PROP INPUT FORM NUMBER OF COPIES RECEIVED DEscRIPTIQN Ltr trans the following:

Lic>>Event Report 76-28 furn undate report No.1 involving hydrogen mII~ikkagx sampling system.isolation valves.~',~(2P)~(1 cy encl rec'd)"~St;Lucie Unit 1:.{!DONOr REMOVE"ACKNOWLEDGED;

'HL SAFETY ASSIGNED AD: FOR ACTION/INFORMATION C O C~MANA L C ASST PROJECT MANAGER~LXC ASST REG FILE NRC PDR.OELD GOSSXCK&STAFF MIPC CASE HANAUER HARLESS PROJECT MANAGEMENT BOYD P COLLINS HOUSTON PETERSON MELTZ HELTEMES SKOVHOLT LPDR TIC: NSIC ASLB!ACRS CYS HOLDING/NRC FORM I95 I2.76)INTERNAL D SYSTEMS SAFETY HEINEMAN~CCHROEDER ENGINEERING MACARRY BOSNAK SIIGJEIL PAWLICK REACTOR SAFE ROSS NOVAK ROSZTOCZY CHECK AT&I SALTZ MAN RUTBERG EXTERNAL DISTRIBUTION NA~TLAB'EG V IE LA PDR CONSULTANTS

~IST R I BUTION PLANT SYSTEMS TEDESCO IPPOLXTO OPERATING REACTORS STELLO OPERATING TECH EISENHUT BUTt E B OOQI ggg NA ULR KSON OR SXTE SAFE ENV 0 ERNST BALLARD YOUNGBLOOD SITE TECH GAMIIILL STEPP HULMAN SITE ANALYSIS VOLLIIER J, COLLINS KREGER CONTROL NUMBER 1~~)g4'))4/03 t%I%fI'~~th%f fy g F~'ll t":.d>'"'Z f1')'~~~r*m f;,,r'VOMKH TON nG OZBQKTVlONR3A II~

FLORIOA POPOVER Bt LIGHT'COMPANY 88ylla106 Docl'8 t F6%March 4, 1977 PRN-LI-77-57 Mr.Norman C.Moseley, Director, Region II Office of Inspection and Enforcement U'.S.Nuclear Regulatory Commission 230 Peachtree Street, N.W., Suite 1217 Atlanta, Georgia 30303

Dear Mr.Moseley:

~~CFi<'(0,-l7-7W Qt 1'IIIarAII g~0 (jQ COJN415gI0I1 ,SPY<QQ REPORTABLE OCCURRENCE 335-76-28 ST: LUCIE UNIT 1 DATE OF OCCURRENCE:

JUNE 4, 1976 HYDROGEN SAMPLING, SYSTEM lSOLATION VALVES UPDATE REPORT NO.1 The attached Licensee Event Report is be'ng submitted to update our initial report of June 18, 1976.Very truly yours, A.D.Schmidt Vice President Power Resources MAS/cpc Attachment cc: Robert Lowenstein, Esquire Director, Office of Inspection and Enforcement (40)Director, Of ice of Management Information and Program.Control (3)O>o~lo$eQ PEOPLE...SERVING PEOPLE

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[oa~j 7 8 9 CONTROL SLOCK: UC EN SEE NAME 0 14 15 LICENSEE EVENT REPORT-INlTIAL REPORT-JUNE 18, 1976 t SE PRINT AU.REOUIRED INFORMATION) 6 LIEN 8 E EVENT UCEN8E'UM 8ER TY P E~TYPE p p 0 0 0-.0 0 I, 1 I1 1 1~01 25 26 30 31 32 REPORT, REPORT CATEGORY TYPE SOURCE[QD1]CQN'7~~~L 7 8 57 58 59 60 EVENT 0ESCRIPTION

~02 Review of the testine OOCICET NUM SER EVENT DATE REPORT DATE 0 0-0 I 0 I 6 0 4 7 I 6, 0 4 7 7 61 68 69'4 75 80 1 rouosed for Unit 2 h dro en samolin s.stem i solation valves 1 ed 8 9 or r fo t dentical Unit 1 valves Unit 1 F AR 7 8 9 80 WOI4 I Section 3.1 3 c 1 assif ies these valves as environmenta 1 cateeor 1A.However.it has been I 7 8 9 ao Qg de termined that the Unit 1'alves have not been t e tes ted for the Dro os ed environment 7 8 9 80 6 in accordance vrlth IEEE-2 1971 because the recuirement to do so was not soecif ied in A 7 8 9 PAVE SYSTEM CAUSE CCMPONKMT CODE CODE COMPONENT COOS SUPPI M~0P~BE~B V A L 7 8 9 10 11 1P 17 43 CAUSE OESCRIPTION Unit gl dro en sam 1 in system isolat i on ao CC M PC N BIT M~4F~~VaN X I 9 I 9 9 N 44 47 48 valves were not tested for cate or 1A enviror a 9 ao g m ta ndi i ns in accordance with I EEE-2 1 7 1 because the re'uirement to do so METHOD OF DISCOVERY DISCOVERY OESC IPMN~d Purchase Order Review 44 45 46 RECUSED OF R EL~8 AMOUNT OF MTNflY lzJ LzJ NA LCCATION OF RELEASE NA NA NA 7 8 9 Q~g+was ot st ci f i Fid in the purchase order 7 8 9 FAC.'STY STATUS POWER OTHER STATUS g~B~05 0 NA 7 8 9 1 0 12 13 FORM OF ACTWilTY CQATENT 7 8 9 10 11 44 PERSONNEL EXPO SURFS PERS0iVNEL INJURIES[iAI LZoO~J 80 PROBABLE CON 6EGUENCES 7 8 9 LOSS OR OAMAGE TO FACIUTY TYP'E OESCMCION NA NA ao 7 8 I 9 1 0 P U 8 LI C ITY ao~1(7 7 8 9 NA En a AOOITIGNAL FAcToRs See page 2 for continuation of Event Description.

C'omnonent Manu f acturer-C i rc 1 e Seal Coroorat i on ao ie 9 9 NA IIE: M..Schoolman PPONE.05 552-3779 ao

Reportable Occurrence 335-76-28 Licensee Event Report-Update¹1 Page Two the purchase order.As an interim corrective action, administrative guidelines were written to inform appropriate personnel of the action to be taken if the valves will not operate under post-accident conditions.(An alternate sample source has been developed via the plant purge system if required.)Operations personnel have been informed that they should actuate the hydrogen recombiners if a containment hydrogen sample cannot be ts3cen.Based on FSAR hydrogen.generation analysis for the existing plant design, the operator has 45 days to actuate either hydrogen recombiner before the hydrogen concentration reaches 4$.The replacement hydrogen valves have been purchased from Valcor Engineering in accordance with IEEE-323 (1971)and will be installed during the first scheduled refueling following receipt of the valves.(335-76-28).