ML19253C914

LER 79-059/03L-0:on 791109,during Reactor Shutdown for Maint,Boiler Feeder Snubber BFS-412 Observed Inoperable. Caused by Empty Hydraulic Oil Reservoir.Reservoir Refilled

ML19253C914
Person / Time
Site:	Fort Saint Vrain
Issue date:	12/06/1979
From:	Gahm J PUBLIC SERVICE CO. OF COLORADO
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19253C911	List: ML19253C910 ML19253C914
References
LER-79-059-03L, LER-79-59-3L, NUDOCS 7912120341
Download: ML19253C914 (1)

Text

NRC FORM 366 U. S. NUCLEAR REGULATORY COMMISSION (7 771 LICENSEE EVENT REPORT CONTROL BLOCK: l i

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74 75 REPORT D ATE 60 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h a  : i On November 9,1979, with the reactor shutdown for scheduled .nintensnee. en m eer<ng I o 3 l personnel observed that boiler feed snubber BFS-412 was inoperable. Since reactor 1 0 1 l had been operated at power during the surveillance interval, this constitutes coera- 1 O s l tion in a degraded mode of LCO 4. 3.10 and is reportable per Fort St. Vrain Technical 1 0 e l Specification AC 7.5.2(b)2. No affect on public health and safety. 1 Ol7 1 l

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33 35 2,6 3/ 40 4 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h i O l E=otv hydraulic oil reservoir on ITT Grinnel boiler feed snubber BFS 412 rendered I i i the snubber inocerable. Oil reservoir was re filled and snubber retur-ed en s em4 c= 1

, 2 [ Present surveillance interval is 124 davs 25%. No chance is recuired as a result I i 3 l of this occurrence. I i 4 1 7 8 9 80 STA  % POWER OT Jilt STATUS IS O RY OtSCOVERY DESCRIPTION i s Gl@ l0 l0 0 l@l"N/A l l A l@l Engineering Observation l ACTivlTY CO TENT RELEASEO OF RELEASE AMOUNT OF ACTtvtTY LOCATION CF RELEASE i s l Z l @ l Z lg N/A l l N/A l 7 4 9 10 11 44 45 60 PERSONNEL EXPOSURES NUMBER TYPE O ESCRIPTION l

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i 3 d 9 l 0l 0 0l@l N/A 11 12 80 LOSS OF OR CAMAGE TO FACILITY TY8E DESCR i e i Z I @ l slPTlQN ^ 1947 156 i 7 8 9 10 30 iSS DE CR TION 7 9} g12 M N NLY t

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/ 4 h . i.L .T . W. Cahm (303) 785-2253 o