ML19308D130

RO-77-53:on 770529,chemical Addition Pumps 3A & 3B Inoperable.Cause Unknown.Evaluation of Event Requested

ML19308D130
Person / Time
Site:	Crystal River
Issue date:	06/20/1977
From:	Stewart W FLORIDA POWER CORP.
To:
Shared Package
ML19308D119	List: ML19308D118 ML19308D130
References
NUDOCS 8002270611
Download: ML19308D130 (2)

Text

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. , CONTAOL ULOCK. l l l  ! l l (PLEASE P AINT ALL REQUIAEC INFC A.*.1?.T.Cl.

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• LCENSE EVENT i Type f' NAME LCENSE NUMBEA TYPE

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CAftCCav 77PU NN coCxf7 NuM0ta EVEM TE AEPORT CATE O 1 CON'T ! -l -l lL l lL l l 0 l 5 l 0 l-l 0 l 3 l 0 l 2 l l0 l5 Il lo !7 l7 l l O! 6l ?! 0l 7l 7' 7 8' 57 LO 59 60 61 68 69 74 75 GL EVENT DESCniPTION a l In mode 3 (hot standby) preparing for plant startup, both chemical addition pumps .p 7 89 h C3 l CAP-3A & 3B were found to be inoperable contrary to Technical Specification 3.1.2.2. J 7 09 S.

M l N dundancy was maintained with the low pressure injection system. Event was not i 7 83 Eu

@l repetitive. Both pumos were flushed with demin watar and restored operable within  !

7 09 go Q] two (2) hours.

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%g E CCCE COMPCNENT COCE S R M C W TCN (LER 77-53; O

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• CAUSE DESCA:PTJON 9 -

grj l The cause of this event has not been determined.

7 89 It has not reo ccurred. Corrective GO

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gl Action will be taken pending the results of an engineering evaluation now in progress.  !

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1. 1 1 Facufy STATUS lCl

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oTHER STATUS NA l METHCO OF 0.SCavERY lAl l.

QSCOVEAY DESCA'"TCN NA J 7 0 9 10 12 13 44 45 46 60 FCAM CF RELE SEO OF AMOUNT OF ACTMTV LOCATCN CF AELEASE 12 ASE l NA l l .NA l 7 8 9 10 11 44 45 60 PEnnN'JEL EXPOSURES NUMBEA TYPE CESCM' TION 13 7 89 Ql0l0l Wl 11 12 13 NA GC j

PERSONNEL INJUDICS NUMBER CESCAipflGN 14 l 0l 0 l 0 l l NA l 7 89 11 12 et OFFSITE CONSEQUENCES M l NA -

l 7 89 OU LOSS OR CAMAGE TO FACILITY TYPE CESCA:PficN

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PUBLICITY NA 1

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l ACOITIONAL FACTCAS

[ ]l See attached Suonlemene m In fore en  !

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$l 8002270 (// ,

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NAME: N. P. Stewart (,,,th PHONE: (813) 866-4159

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SUPPLEMENTARY INFORMATION

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(V') -l. Report Nc. 50-302/77-53

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2. Facility: Crystal River Unit #3 3: Report Date: 20, June 1977

4. Occurrence Date: 29 May 1977 , _ _

5. Identification of occurrence:

Chemica1' addition pumps CAP-3A & 3B inoparable contrary to Technical Specification 3.1.2.2.

6. Conditions Prior to Occurrence:

The plant was preparing to achieve' criticality by adjusting boron for the accept-able critical rod position..

7. Description of Occurrence: l At 0700 in preparation for criticality, an attempt to adjust Reactor Coolant boron f-concentration for acceptable critical rod position revealed that r.either chemical addition pump CAP-3A or CAP-3B would deliver boric acid to the makeup tank. -Both chemical addition pumps were flushed with demineralized water and the pumps restored operable within two (2) hours. Startup resumed without incident. ,

8. Designatio'n of Apparent Cause:

The cause of P.his event has not been determined as of this' date, as the event

• has not reoccurred.

9. Analysis of occurrence: *

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This event had no safety implications as the high pressure injection pumps and the bor9ted water storage tank were available and operable.

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10. Corrective Action:

An evaluation of this occurrence has been requested and corrective action will be

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taken pending results of the evaluation.

11. Failure Data:

This was not a repetitive occurrence.

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