ML18227A428

Submit Licensee Event Report of Turkey Point Unit 3, in Accordance with Technical Specification 6.9.2 to Provide Prompt Notification, Occurrence on 10/6/1976 for Boron Injection Tank

ML18227A428
Person / Time
Site:	Turkey Point
Issue date:	10/20/1976
From:	Schmidt A Florida Power & Light Co
To:	Moseley N Office of Nuclear Reactor Regulation
References
PRN-LI-76-263
Download: ML18227A428 (6)

Text

P.O. BOX 013100, MIAMI, FLORIDA 33101 FLORIDA POWER 8t LIGHT COMPANY October 20, 1976 PRN-LI-76-263 Mr. Norman C. Moseley, Director, Region II Office of Inspection and Enforcement-U. S. Nuclear Regulatory Commission 230 Peachtree Street, N. W., Suite-818 Atlanta, Georgia 30303

Dear Mr. Moseley:

REPORTABLE OCCURRENCE 250-76-8 TURKEY POINT UNIT 3 iDATE OF OCCURRENCE: ,'OCTOBER 6', 1976 BORON INJECTION TANK The attached Licensee Event "Report is being submitted in accordance with Technical Specification 6.9.2 to provide prompt notification of the subject occurrence.

Very truly yours,

" A. D. Schmidt Vice President Power Resources MAS/cpc Attachment cc: Jack R. Newman, Esquire Director, Office of Inspection and Enforcement (40)

Director, Office of Management Information and Program Control (3)

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UCEN SEE UCENSE EVENT NAiVE UCENSE NUMBER TYPE TYPE 0!i' EIT Fl 3 3 O O Ol Ol 0 OI 0 1010 4 1 ll 1 1

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7 39, 14 15 25 26 30 31 32 REPORT REPORT CATEGORY Yt SOURCE OOCXEc TNUMBER EVEN1 OATS REPORT OATE IcCIccN'T T ~L 0 5 Ol 0121 I 7 3 57 56 59 60 61 cB 69 74 75 EO cWENT OESCRIPTlON

[cCI I At ap roximatel 9:30 a.m. the results of a routine sam le indicated tha 7 6 9 EO

~0)3 the boron concentration of the Unit 3 Boron In ection Tank (BIT) was 18 2dO 7 3 9 FO

[004] m which was below the lower Technical Soecification 1imit of 20 000 7 3 9 I 0 Qi" 5 7 6 9

~DIE h 7 9 9 FfzME SYSTEM CAUS c CCh!PQNEfff C hiP RENT CQOE CCCE CON'IPONENT COOc I 'e PI 'EcR VA 'ii cAViJRER VIGLATiCN

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91919 ~Y 7 3 9 10 11 12 17 43 44 47 46 CAUSc DESCRIPTION

+l-I An investi ation, includin valve lineup checks, was conducted, 7 c c Ql- but the cause of the occurrence could not be determined.

7 6 9 60 7 S S FACAffY METROO CF STATUS POVVCR CTRcR STATiJS OISCOVEc. OISCOVERY OESCRPT!CN E ~1O 0 N/A ~ N/A 7 5 9 ip 12 13 44 45 46 FORM OF

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• RFLEAEEO OF PELEEA'SE AMOUNT OF ACTIVffY LOCATION OF RELEASE Q<g z ~z N A i7/A 7 6 9 10 11 44 45 PERSONNEL EXPOSURES NUMBER TYPE OESCRIPTiON

~ol o o z N/A 13 WP 7 3 9 11 1 PERSONNEL INv'UPIEB NUMBER CESCi!PT!ON 7 3 9

~oo I o 11 N A 60 9~03)3L"CONSEQU=NCES 7 6 9 LOSS OR OAMASE TO FACILITY TYPE OESCR!Pi.CN

+I6 Z N A 7 9 10 Ep PUBLICITY N/A 7 ""9 AQOITIOihIAL FACTORS e Fac 2 for continuation of Event oescriotion.

7 ": 9 60 SI 7 Bci N. A. Scho man PHONE.305 552-3779 ie70 AAt e 6dT

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.'~+ REPORTABLE OCCURRENCE 250-76-8 LICENSEE EVENT REPORT PAGE TWO Event Descri tion (continued) sampled and found to have a boron con"entration of 20,800 ppm, whereupon recirculation of the Unit 3 BIT with the "A" BAST was begun. At approximately 10:43 a.m., followup sample results indicated that the boron concentration of the Unit 3 BIT had increased to 20,700 ppm, and the shutcown was terminated.

Further investigation was unable to determine the cause of the low boron concentration.

Since the cause of this occurrence has not been identified, its similarity to previous occurrences of BIT boron dilution is not discussed in this report. (250-76-8)

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