ML20041B162

LER 82-002/03L-0:on 820119,control Power Fuse in Motor Control Ctr for Valve Operation Found Open.Cause Not Stated. Fuse Replaced,Tested & Returned to Svc.Engineering Investigation Underway

ML20041B162
Person / Time
Site:	Arkansas Nuclear
Issue date:	02/09/1982
From:	Rogers P ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML20041B157	List: ML20041B156 ML20041B162
References
LER-82-002-03L, LER-82-2-3L, NUDOCS 8202230340
Download: ML20041B162 (1)

Text

e NRC FORM 3cs U. 5 NUCLE AR REGUL ATORY COMMI55 SON LICENSEE EVENT REPORT EXHIBIT A CONTROL BLOcar: l l l l l l l (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATIONI o i a e l AlR l A j Mj 0 l2 lgl 0 l0 l - 10 l0l 0l 0l0]-Jsl0l0 lg g l1 l1l1 lljgl l gg tact ~sta Coot e4 is tics ~:,a ~vust u av, ut & ~24 evra Jo bs car 'e CON p'T s

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(VENT UATE 84 'S HF,OMIDaft 60 EVENT DESCRIPTION AND PROS ADLE CONSEQUENCES o 2 i On 1/19/82 while in Mode 3 during plant heatup, position indication for i r= = I Hioh Pressure Safety Injection (HPSI) control valve 2CV-5056 was lost, i o . I an investigation revealed that the valve would not operate. Thisdegradeg l

F6TO I the operability of 'B' HPSI Header and is reportable per T.S.6.9.1.9.b. I pirr1 i The other control valves on 'B' HPSI Header were operable, and 'A' HPSI ,

l o 3 Header was fully operable. This occurrence is similar to LER s 50-368/ i t o ia i I 81-043. 80_Q87,80-023 & 79-080. t

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CAUSE CESCR.PTION AND CORREC(IVE ACTIONS Q g] I A contgl power fuse in the tor Control Center (MCC) for valve operatiop i I for 2CV-5056 was found to be open. The fase was replaced, the control ,

i 2 i valve was proved operable and returned to service within the requirements, i

l EED I of T.S.3.5.2. An engineering investigation is underway for control ,

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ARKANSAS POWER & LIGHT COMPANY POST OFFICE BOX D1 LITTLE ROCK, ARKANSAS 72203 (501) 371-4000 February 9, 1982 2CAN028201 Mr. G. L. Madsen, Chief Reactor Project Branch U. S. Nuclear Regulatory Ccnmission Region IV 611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76011

Subject:

Arkansas Nuclear One - Unit 2 Docket No. 50-368 License No. NPF-6 Licensee Event Report No. 82-002/03L-0 (File: 2-0520)

Gentlemen:

In accordance with Arkansas Nuclear One - Unit 2 Technical Specification 6.9.1.9.b, attached is the subject report concerning the inoperability of High Pressure Safety Injection Valve, 2CV-5056, associated with an open control power fuse while in Mode 3 operation.

ery truly ours, John R. Marshall Manager, Licensing JRM:GAC:sl M

Attachments cc: Mr. Norman M. Haller, Director Office of Management & Program Analysis U. S. Nuclear Regulatory Commission Washington, D. C. 20555 Mr. Richard C. DeYoung Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission Washington, D. C. 20555 MEMDER MIDOLE SOUTH UTILITIES SYSTEM

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NRC 50RM 366 U. S. PeUCLE AR RECULATORY COMMisssON l.lCENSEE EVENT REPORT EXHIBIT A CONTROL BLOCS 0 l l l l l 1 th (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATIONI 7

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i o l A control power fuse in the tor Control Center (MCC) for valve operatiop i > i for 2CV-5056 was found to be open. The fuse was replaced, the control ,

, 2 i valve was proved operable and returned to service within the requirements, i 3 I of T.S.3.5.2. An engineering investigation is underway for control ,

. . i circuitry for control valve 2CV-5056. ,

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ARKANSAS POWER & LIGHT COMPANY POST OFFICE BOX 551 LITTLE ROCK, ARKANSAS 72203 (501) 371-4000 February 9, 1982 2CAN028201 Mr. G. L. Madsen, Chief Reactor Project Branch U. S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76011

Subject:

Arkansas Nuclear One - Unit 2 Docket No. 50-368 License No. NPF-6 Licensee Event Report No. 82-002/03L-0 (File: 2-0520)

Gentlemen:

In accordance with Arkansas Nuclear One - Unit 2 Technical Specification 6.9.1.9.b, attached is the subject report concerning the inoperability of High Pressure Safety Injection Valve, 2CV-5056, associated with an open control power fuse while in Mode 3 operation.

ery truly yours, f

John R. Marshall Manager, Licensing JRM:GAC:s1 M

Attachments cc: Mr. Norman M. Haller, Director Office of Management & Program Analysis U. S. Nuclear Regulatory Commission Washington, D. C. 20555 Mr. Richard C. DeYoung Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission Washington, D. C. 20555 MEMOER MIDDLE SOLTH UTiuTIES SYSTEM

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. EVENT DESCRIPTION AND PROBADLE CONSEQUENCES 10 t o t ai I On 1/19/82 while in Mode 3 during plant heatup, position indication for i o 2 I High Pressure Safety Injection (HPSI) controj valve 2CV-5056 was lost, i o . I an investigation revealed that the valve would not operate. Thisdegradeg in 151 i the coerability of 'B' HPSI Header and is reportable per T.S.6.9.1.9.b. i o a i The other control valves on 'B' HPSI Header were operable, and ' A' HPSI ,

8 i Header was fully operable. This occurrence is similar to LER s 50-368/ i o . I 81-043.80-087. 80-023 & 79-080. l

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, o I A control power fuse in the tor Control Center (MCC) for valve operatiop i i i for 2CV-5056 was found to be open. The fuse was replaced, the control ,

, 2 i valve was proved operable and returned to service within the requirements, L'_w I of T. S . 3. 5. 2. An engineering investigation is underway for control ,

, . i circuitry for control valve-2CV-5056. ,

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