ML19321A523

LER 80-032/03L-0:on 800617,w/plant Operating at Approx 68% Thermal Power & 193MW,PV-21243 Was Not Controlling at Appropriate Setpoint.Caused by Defective Masoneilan Pv. Devcon Applied to Seal Ring Gasket Stopped Valve Leakage

ML19321A523
Person / Time
Site:	Fort Saint Vrain
Issue date:	07/15/1980
From:	Gahm J PUBLIC SERVICE CO. OF COLORADO
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19321A512	List: ML19321A511 ML19321A523
References
LER-80-032-03L, LER-80-32-3L, NUDOCS 8007230555
Download: ML19321A523 (1)

Text

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NRC FCM 366 U.3. NUGLtAH HkUULAIQHY COMMISslON (7 77)

LICENSEE EVENT REPORT

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() CONTROL BLOCK: l l l l l l (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) l o l819 l l C 7 l 0 CODE L.CENSEE l F I S l V I I I@150UCENSE 14 l 0 NUMBER l- l 0 l0 l 0 l 0 l 0 25 26 l- LICENSE l0 l0 'PE l@l4 l157 CAT JO l

l1 58l2l@l0 lhl CON'T 10111 I60L hl 0 l 5101010 l 2 l 61768@l01611 l71810 @l0 75l 7 l1 l 5OATEl 8 l 080l@

5CuRCE

? 8 69 EVENT OATE 74 REPORT 61 CoCKET NUMB ER EVENT OESCRlrTION AND PROBABLE CONSECUENCES h t o 12 l l On June 17 and 18, 1980, the plant was oper. ed at power with emergency feedwater I lo l3l l header supply to ',oop 1 helium circulator water turbine drives isolated. Reportable I lol4l l per Fort St. Vrain Technical Specification AC 7.5.2(b) 2, degraded mode of LCO 4.2.2(al .

I o l s 1 I No affect on public health and safety. Similar occurrences reported in R0 80-15 and l lo is l l 80-23. I lol7l l l

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SO 7 8 9 j E CO E SU8C E COMPONENT CODE StSCODE SU E lol9l l H l H lh lX lh lZ lh l VI Al LI VI El Tjh l F lh l H Ih 10 19 20 7 8 9 11 12 13 18

_. SEQUENTI AL OCCURRENCE REPORT R EVISION LER/pq EVENT YEAR R EPORT No. CODE TYPE No.

A 10131 sd is 10 I 21 22 l-l 23 1 01 3l 21 24 26 1/l 27 28 29 Itl 30 l-l 31 1 01 32 N CT CN O P NT M HOURS SB 1 FCR 8. SLP LIE VANUF C RER l33 xi@lZ l@ 34 l35Zl@ IZ 36 l@ 10 10 10 !O I 3/ 40 lY lh 41 l42 NI@ IN 43 l@ [M_l1 44 12 1047l@

CAUSE DESCRIPTION AND CORRECTIVE ACTIONS 2e i1 IoI l Loon 1 emer2ency feedwater sucolv was isolated to reoair a Masoneilan cressure con- I l

1i li j l trol valve. Valve repair not complete at time of return to power resulted in LCO I i1 12 I I 4.2.2 degraded mode operation. Application of devcon to the area under the seal ringl i,;3i [ gasket alleviated valve leakage. System returned to service. I t i l41 I l 7 8 9 8o ST 4 PCWER OTHER STATUS DIS RY DISCOVERY DESCRIPTION I1 15 l l C l@ l0 l0 l2 l@l N/A l l Al@l Personnel Observation / Review of Logs l 0

ACTIVITY CO TENT aELEASEO -PRELEASE AMOUNT OF ACTIVITY LOCATION OF PELEASE 11168 9l l Z l h 10lZ l@l N/A l l N/A l 7 11 44 45 go PERSONNEL EXPOSURES NUM8ER TYPE DEscalPTION 11 I 71 l 0 l 0 l 0 Jhl Z lhl N/A 'l PERSoNN E L INJU IES NUMBER OESCRIPTIC ,

l1 la l l 0 ! O I O11l@l12N/A l l 7 8 9 80 '

LCSS CP OR OAMAGE TO FACILITY l TYPE D ESCRIPTION I t I'ldl 3Z l@l 10N/A 7 30 l

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