ML18110A876

LER 1977-335-30 for St. Lucie, Unit 1 on Detector Calibration

ML18110A876
Person / Time
Site:	Saint Lucie
Issue date:	07/14/1977
From:	Schmidt A Florida Power & Light Co
To:	Moseley N NRC/IE, NRC/RGN-II
References
LER 1977-335-30
Download: ML18110A876 (8)

Text

0 U.S.NUCLEAR REGULATORY COM MION NRC FORM 195 I2-76)NRC DISTRIBUTION FoR PART 50 DOCKET MATERIAL DOCK~NUMBER BS'ILE NUMBER TO: Mr.Morman C.Moselsy FROM: Florida Power G Light Company Miami, FLorida A.D.Schmidt DATE OF DOCUMENT DATE RECEIVED 8/1/77 ClLETTER OORIGINAL DCOP Y EINOTORI2ED 0 UN C LASS IF I E D PROP INPUT FORM NUMBER OF COPIES RECEIVED DESCRIPTION ENCLOSURE Licensee Event Report g 50-335/77-30 on 6/14/77 concerning the failure~of the Incore-Excore Detector axial shape index (ASI)monthly calibration to be performed.

PLANT NAME: St.Lucie Unit 1 VT 8/1/77 (1-P)(2-P)00 NQT REMOVE III t(IIOWKIIIIFQ NOTE: IF PERSONNEL EXPOSURE IS INVOLVED SEND DIRECTLY TO KREGER/J.COLLINS Pe~'A FOR ACTION/INFORMATION INTERNAL DISTRIBUTION EXTERNAL DISTRIBUTION CONTROL NUMBER CRS 16 SENT AS AT'7zl3O259 NRC FORM 195 I2.76)

A J"A C P.O.BOX 013100, MIAMI, FL 33101 y9~bg FLORIDA POWER&LIGHT COMPANY Regulatory Docket" File.July 14, 1977 PRN-LI-77-229 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:

REPORTABLE OCCURRENCE 335-77-30 ST.LUCIE UNIT 1 DATE OF OCCURRENCE:

JUNE 14, 1977 DETECTOR CALIBRATION The attached Licensee Event Report is being submitted in accordance with Technical Specification 6.9 to provide 30-day notification of the subject occurrence.

Very truly yours, A.D.Schmidt Vice President Power Resources MAS/cpc Attachment cc: Robert Lowenstein, Esquire Director, Office of Inspection and Enforcement (30)Director, Office of Management Information and Program Control (3)'$72i30259 PEOPLE...SERVING PEOPLE

&~I tT>>6 N'GAY)v<>>f)f~~<gg~~r icy<<>~~~naco oa>>~ao>v UCEN SEE NAME O'~L S L S 1 LICENSE NUMBER 0 0-0 0 0 0 0-7 89 14 15.LICENSEE EVENT CONTROL SLOCK: 1 6 REPORT fPL.E PRINT ALL REOUIRED INFORMATION)

LICENSE EVENT TYPE TYPE 0 0 4 1 1 1 1 L0003~I 25 26 30 31 32 REPCRT REPORT CATEGORY TYPE SOURCE~01 CON3'~I,~L 0 I 7 8 57 58 59 60 61 OOCXET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE EVENT OESCRIPTION e-F, o Dete tor axial sha e index ASI monthl calibration was due on June 13 in 7 8 9 80 I accordance with s ecification 4.3.1.1.1 but was not erformed.On the mornin of June 7 8 9 60 g4]4 t is ove i ht was rea.ized and ower was reduced to 0 ercent until the calibration 7 8 9 60 was com leted in accordanc'e with s ecification 4.3.1~1.1.This was the first occurrence 7 8 9 60 I006 f fss.d c OT Pro ec io Svs em su veilla ce.LFR 3-7-30 7,6 9 FAME SYSTEM CAUSE CQMPOiiIENT CODE CQCE COMPONENT CODE SUPPUEA I~A I N S T U N 7 8 9 10 11 12 17 43 CAUSE OESCRIPTION Qg This calibration re uires e uilibrium xenon COMPCi4B'IT MANUFACTURER C 4 9 0 47 N 48 conditions in the core.Durin the sur-7 8 9 60 CO veillance eriod in uestion the lant never achieved e uilibrium xenon due to load 80 7 89 FACI'JTY STATUS POWER LE/~00 7 8 9 10 12 13 FORM OF ACTIVITY CQIIITENT RELEASED OF RELEASE Qg~z-7 8 9 10 11 PERSONNEL EXPOSURES NUMBEA TYPE DESCRIPTION Lonoof z 7 8 9 11 12 13 PERSONNEL INJURIES NUMBER C ESCRilP~IQN~~~~on 0 7 89 11 12 METHOD OF DISCOVERY OTHER STATUS NA DISCOVERY OESCAIPTION ualit'ontrol Review B 60 44 45 46 LOCATION OF RELEASE NA AMOUNT OF ACTIVRY NA 44 45 NA 60 NA ao PROBABLP CONSEQUENCES NA 7 8 9 60 Q~0 swin s and outa es.It was mistakenl believed that: the da s durin which the unit was 7 8 9 LOSS OR OAMAGE TO FACILITY TYPE OESCRiPTION M1LLj~.ed to 7 89 10 PU8LICITY ercent until surveillance corn leted.7 89 AOOITIONAL FACTORS CG 16 wo or continuation of Cause Descri tion.69 7 89 NA~,IE V.A.Srho ma PHON@05."332-3802 80 CFO 441~447

~.0 r~t V 0 I~~e

" Reportable Occurrence 335-77-30 Licensee Event Report Pa e Two Cause Descri tion (Continued) off-line did not count as part of the monthly surveillance period.Because of this misinterpretation, it was not realized that the surveillance had been missed until it was overdue by 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.