ML19350C263

LER 81-014/03L-0:on 810104,instrument Air Compressors 1C & 1A Out of Svc,Leaving Only Compressor 1B in Svc.Caused by Compressor 1C Tripping on High Discharge Air Temp & Compressor 1A Being Cleared Out for Insp & Repairs

ML19350C263
Person / Time
Site:	Fort Saint Vrain
Issue date:	03/03/1981
From:	Gahm J PUBLIC SERVICE CO. OF COLORADO
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19350C262	List: ML19350C261 ML19350C263
References
LER-81-014-03L, LER-81-14-3L, NUDOCS 8103310744
Download: ML19350C263 (1)

Text

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N RH 366 U. S NUCLEAR REGULATOQY COMMISSION G.

LICENSEE EVENT REPORT I (PLE ASE PRINT OR TYPE ALL REQUIRED INFCRMATION)

CONTROL BLOC <: l 1

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CATE 74 75 # EPORT C ATE 80 EVENT CESCRIPTION AND PRCBABLE CONSEQUENCES h lol2l l During normal plant operation,1C instru=ent air compressor tripped on high discharge !

g o ,3, gair temperature; 1A instrument air compressor was cleared out for after-cooler tube l 1o141 Irepairs at this time. This lef t only 13 instrument air compressor in service. Re- l i o ,3, gortable per Fort St. Vrain Technical Specification AC 7.3.2(b)2 as a degraded raode of f ppq [ LCO 4. 2. 6. No affect on public health or safety. Backup systers unavailable. Simi- I

[o ! T ) !lar occurrences R0 79-32 and 79-29. No accompanying occurrence. I l ois t i I 7 8 9 40 SysTEV CALS

• CAUSE C OM P. V/ .VE CCCE CCCE SUSCCCE COMPCN EN' CC C E SL8CCCE SU8CCCE I F I A l@ LgJ@ LxJ@ In Ir it lx Ic in l@ I cl@ LzJ @

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_EVENTvtAR REPORT NC. CCOE TYPE No.

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_ 21 ;2 2J 74 .'6 27 IS ;9 04 31 32 ACTICN SUTURE EFFECT SdVTDCWN ATTACwv ENT NPRD 4 ##iVE CCU8 COMPON ENT TAKEN ACTICN CN PLANT VETwoD HQLR$ 4. SLevtTTE3 804M W9. SL ** L: E R MANUFACTLRER lx_J@lz 33 34 l@ LzJ@

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44 47 CAUSE CESCRIPTION ANO CCRRECTIVE ACT!CNS l i 131 110 in s tnmen t air co-cressor coolinz vster dacket f onM n 2 all wed the air discharce l L'_1.'_J l eeroerature to ineresse to the coenressor trin noine. The eenu 7 vger syp. , m1y. l l3 i;i twas opened to admit more cooline water. and the air cocoressor was returned to semicel

(.4 l l tJith 1A and 1C instru=ent air cocoressors in service. 1C air cocoressor was taken out I i14i lof service for insoection and cleanin2 of af ter-cooler. I 7 . 9 so

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l la l@looerator observa: ten I AC'Tiviry CClrENT '

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li 191 LzJ@l10 N/A I 7 4 9 50 ISSU CESCRIPtcN

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