ML19317G336

LER 78-013/03L-0:on 780208,A & B Boric Acid Storage Tanks Found Inoperable While Performing Operability Check of Boron Injection Sources.Caused by Failure to Follow Procedures. Operators Instructed

ML19317G336
Person / Time
Site:	Crystal River
Issue date:	03/01/1978
From:	Cooper J FLORIDA POWER CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19317G334	List: ML19317G333 ML19317G336
References
LER-78-013-03L, LER-78-13-3L, NUDOCS 8002280940
Download: ML19317G336 (2)

Text

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, NRc FC N :64 U. s. NUCLE AA REcu(ATO,*IY CO,.13. TIS $1ota (7 77) 4 I I I I I l LICENSEE EVENT REPORT EXHIBIT A

' 3l CONTROL Sto:it. !. .h. :PLE ASE 78tlNT CR TYPT ALL R(CUIREO INFQRMATICN1 .

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i io,:ih $ [o at1N,.Ne~hrSo g the Operabit.ity of the Boron Injection I

( 5 m gSources, SP-320, it was determined that both "A" and "3" 3AST's were in-m ; operable contrary to Tach Specs 3.1.2.9 and 3.1.2.2. "A" BAST 3cron concen ,

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"3" 3AST volume of 4100 gallons. No safety hazard ,

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SUPPL?.?ENTARY INFORMATION Report No.: 50-302/78-013/03L-0 '

2. Facility: Crystal River Unic #3 *

3. Report Date: 1 March 1978 4 Occurrence Cate: 8 February 1978

5. Identification of Occurrence:

One borated water source inoperable contrary to Technical Specifications 3.1.2.9 and

., 3.5 '

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6. Conditions Prior to Occurrence:

Mode 1 operation.

7. Descriptien of Occurrence:

At 1525, while- performing the Operability of 3oren Injection Sources and Pumps Surveillance Procedure SP-320, it was determined that neither "A" nor "B" boric acid f. !

storage tanks met Tech Spec requirements. The boron ecucentracien of the "A" 3AST l

.was determined to be 14,400 PPM, 400 PPM abowl the Tech Spec H mics. The volume of )

the "3" 3AST was discovered to be 4100 gallons, 900 gallens below the Tech Spec limit. l The 72 hour8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> Action Statements were entered and addition of dsmineralized water to the "A" 3AST was initiated. Sampling of the "A" BAST indicated the boren concentration

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b returned to within specified limits at 2035, satisfying the Action Statements. The volume of the "3" 3AST was returned to within specified limits en 9 February 1978 as indicated by satisfactory ccepletion of SP-320.

3. Designation of Apparent Cause:

The probable cause of this event was the failure to notif 7/ initiate action then administrative limits of the boric acid storage tanks were appnached :n previous sampling.

9. Analysi.s of Occurrence:

There was no safety hazard to the plant oc general public as the borated water storage tan:

(3WS* was operable availa)ble in case or.1accident.

the negative reactivity of both beric acid storage tanks was

10. Corrective Action:

Chem / Rad and Operaticus personnel have been instructed as to preper actions to be taken when sampling indicates the administrative limits are being approached.

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11. Failure Data:

This is the first occurrence of this event. i N

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