ML17309A127

LER 81-003/03L-0:on 810115,during Normal Reactor Coolant Boration,Absence of Boric Acid Flow from a Boric Acid Pump Observed.A Pump Declared Inoperable.Caused by Valve Not Fully Open After Sampling.Valves Will Be Locked Open

ML17309A127
Person / Time
Site:	Ginna
Issue date:	02/13/1981
From:	Backus W ROCHESTER GAS & ELECTRIC CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML17258A797	List: ML17258A796 ML17309A127
References
LER-81-003-03L, LER-81-3-3L, NUDOCS 8102180596
Download: ML17309A127 (2)

Text

NRC FIJRM 366 U. S. NUCLEAR REGULATORY COMMISSION (0'77 I ~~. 81-003/03L-0 ICENEEE EVENT REPORT AR 12yg)

CONTROL BLOCK: QI (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

I 6

~o N y R 8 G 1Qs0 14 0 0 0 0 0 LICENSE NUMBER 0 0 0 25 Q34 26 1 1 LICENSE TYPE 1 10s~Qs 30 57 CAT 58 7 8 9 LICENSEE CODE

~s 7

CON'T 8

s"ssr~LQs 60 61 0 5 0 0 0 DOCKET NUMBER 2 4 40rg 68 69 1 1 5 EVENT DATE 8 10s0 74 75 2 1 REPORT DATE 3 8 1 0 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES Q10 During normal reactor coolant boration, operator'observed absence of boric acid flow from A boric acid pump. He put B boric acid pump in and declared A pump inoperable.

4 (T.S. 3. 2. 3b) Investigation showed suction valve partly closed. Valve was immediate ly reopened. lt was found that during normal sampling a H.P. technlclan had throttled the valve and apparently reopened it. He noted diaphragm valve stem indication riser was loose, and reported this ~ Pipefitter, responding to report, screwed indication riser back in, after which the above absence of flow was observed. 80 7 8 9 SYSTEM CAUSE CAUSE COMP. VALVE CODE CODE SUBCODE COMPONENT CODE SUBCODE SUBCODE

~PC Q>> A Q12 ~FQ13 13 V A L V 8 X 18 Q4 ~DQts 19

~D Qs 20 7, 8 9 10 11 12 SEQUENTIAL OCCURRENCE REPORT REVISION 0,

LF RIRO Rssosr ACTION FUTURE EVENT YEAR

~81 21 22 EFFECT

~

23 SHUTDOWN

~00 24 REPORT NO.

3 26

~~

27

~03 28 ATTACHMENT CODE 29 NPRDX TYPE

~L 30 PRIME COMP.

31 NO.

0 32 COMPONENT TAKEN ACTION ON PLANT METHOD HOURS +22 SUBMITTED FORM SUB. SUPPLIER MANUFACTURER

~XQ16 PJQ19 ~ZQ2O ~Q2 o 0 Q23 ~NQ24 ~N Q26 33 34 35 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS 27 o Valve apparently was not full open after sampling; and pipefitter screwing in stem indi cation riser caused valve to further close. Boric acid system alignment procedure and testing the A pump was performed with no further discrepancies. Superintendent shall 3 issue notice stressing approved maintenance procedures for safety related systems ~

Boric acid pump suction valves will be locked open. Specific sampling procedures 4

80 7 8 9 FACILITY STATUS Ts POWER OTHER STATUS Q METHOD OF DISCOVERY DISCOVERY DESCRIPTION Q32 s ~E 02s ~10 0 12 Qss NA 44

~AQ31 45 46 CI erator observation 80 8 9 10 13 ACTIVITY CONTENT REI.EASED OF RELEASE AMOUNTOF ACTIVITYQB LOCATION OF RELEASE NA Q

6 Z Q33 ~ZQ34 NA 8 9 10 44 45 80 7

PERSONNEL EXPOSURES NUL4BER TYPE DESCRIPTION

~l7 L000~0 0 lQsr

~ 2 Qss 13 NA 80 7 8 9 11 12 PERSONNEL INJURIES 8 9 11 12 80 7

LOSS OF OR DAMAGE TO FACILITY naZ 7 8 9

'Q TYPE DESCRIPTION 10 Q43 NA 80 PUBLICITY NRC USE ONLY 68 69 80 o Wesley H. Backus PHQNE 315/524-4446, ext. 290