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

NRC FORM 195 0 U.S. NUCLEAR REGULATORY COM MION DOCK~ NUMBER I2-76) BS'ILE NUMBER NRC DISTRIBUTION FoR PART 50 DOCKET MATERIAL FROM: DATE OF DOCUMENT TO: Light Florida Power G Company Miami, FLorida DATE RECEIVED Mr.Morman C. Moselsy A.D. Schmidt 8/1/77 EINOTORI2ED PROP INPUT FORM NUMBER OF COPIES RECEIVED ClLETTER OORIGINAL 0 UN C LASS IF I E D DCOP Y 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:

00 NQT REMOVE St. Lucie Unit 1 VT 8/1/77 (1-P) (2-P) IIIt(IIOWKIIIIFQ NOTE: IF PERSONNEL EXPOSURE IS INVOLVED SEND DIRECTLY TO KREGER/J. COLLINS Pe~ 'A FOR ACTION/INFORMATION INTERNAL DISTRIBUTION EXTERNAL DISTRIBUTION CONTROL NUMBER

'7zl3O259 CRS 16 SENT AS AT NRC FORM 195 I2.76)

A J "A C

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

Mr. Norman C. Moseley, Director, Region Office of Inspection and Enforcement II 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)

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. LICENSEE EVENT REPORT CONTROL SLOCK: fPL .E PRINT ALL REOUIRED INFORMATION) 1 6 UCEN SEE LICENSE EVENT NAME LICENSE NUMBER TYPE TYPE O' ~ L S L S 1 0 0 0 0 0 0 00 0 4 1 1 1 1 L0003~I 7 89 14 15 25 26 30 31 32 REPCRT REPORT CATEGORY TYPE SOURCE OOCXET NUMBER EVENT DATE REPORT DATE

~01 CON3' ~I, ~L 0 I 7 8 57 58 59 60 61 68 69 74 75 I

EVENT OESCRIPTION e-F, o Dete tor axial sha e index ASI monthl calibration was due on June 13 in 7 8 9 80 accordance with s ecification 4.3.1.1.1 but was not erformed. On the mornin of June 7 8 9 60 7

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8 9 4 t is ove i ht was rea. ized and ower was reduced to 0 ercent until the calibration 60 7 8 9 was com leted in accordanc'e with s ecification 4.3.1 1.1. This was the ~ first occurrence 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 COMPCi4B'IT 7 8 9 I

CODE 10

~ CQCE A

11 12 I

COMPONENT CODE N S T U 17 SUPPUEA N

43 C

MANUFACTURER 4 9 0 47 N

48 CAUSE OESCRIPTION Qg8 9 This calibration re uires e uilibrium xenon conditions in the core. Durin the sur-7 60 CO veillance eriod in uestion the lant never achieved e uilibrium xenon due to load 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 89 FACI'JTY METHOD OF 80 STATUS POWER OTHER STATUS DISCOVERY DISCOVERY OESCAIPTION LE/ ~00 NA B ualit 'ontrol Review 7 8 9 10 12 13 44 45 46 60 FORM OF ACTIVITY CQIIITENT 7

Qg 8 9

~

RELEASED z-OF RELEASE 10 11 AMOUNT OF ACTIVRY NA 44 45 LOCATION OF RELEASE NA PERSONNEL EXPOSURES NUMBEA TYPE DESCRIPTION Lonoof z NA 7 8 9 11 12 13 60 PERSONNEL INJURIES NUMBER C ESCRilP ~ IQN 7

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89

~on 0 11 12 NA ao PROBABLP CONSEQUENCES NA 7 8 9 LOSS OR OAMAGE TO FACILITY TYPE OESCRiPTION M1LLj ~. ed to ercent until surveillance corn leted.

7 89 10 PU8LICITY 7 89 AOOITIONAL FACTORS 16 CG wo or continuation of Cause Descri tion.

69 7 89 80 NA~,IE V. A. Srho ma PHON@05 ."332-3802 CFO 441 ~ 447

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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 />.