ML20024C310

Updated LER 79-007/03X-1:on 790212,while Performing Test 8.7.4.3,valves AO-5033A,CV-5065-10,15,16 & 17 Failed to Give Proper Position Indication When Cycled & to Close within Specified Tolerance.Cause Not stated.W/830621 Ltr

ML20024C310
Person / Time
Site:	Pilgrim
Issue date:	06/21/1983
From:	Harrington W, Whitney G BOSTON EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
83-132, LER-79-007-03X, LER-79-7-3X, NUDOCS 8307120507
Download: ML20024C310 (2)

Text

L L ' UPDATE REPORT PREVIOUS REPORT ISSUED ON 2/22/79 N80C PMes 344 U.S. NWCLCA2 CSSULAYS3V C2 MMC 203N APPA3VED CY CMJ 3****"

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EVENT DESCHIPTION AND PROBABLE CONSEQUENCES h a2 l On 2/12/79 while performing surveillance test 8.7.4.3. Test (0 pen and Close) Iso-l 1013 I I lation Valves Except MSIVs, the following valves failed to give proper position I lo 14 l l indication when cycled. A0-5033A. CV-5065-10.16 & 17. CV-5065-15 failed to l lo is l l close within the specified tolerance. A similar occurrence was reported in l o 8 lLER 78-046/03L-0. I lolill I loisIl l

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3. S. 3, 4. ., 4. 43 44 47 38 34 CAUSE DESCRIPTION AND CORRECT 8VL ACTIONS h lilo ll Investigation revealed that the situation was not an alignment problem. Each 1 1 1 I valve was cycled several times and operated procerly. Procer indication was veri l i 2 l fied as each valve was subsequently cycled. The surveillance frequency for l i 3 l these valves has been increased from quarterly to monthly with the exception of I i 4 lA0-5033-A valve which was satisfactorily repaired on 5/24/79. "

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N/A l lllllllllllll NAME OF PREPARER G. G. Whitoey PsONE (617)746-7900 8307120507 830621 PDR ADOCK 05000293 O PDR

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EORTON EDISON COMPANY 800 BovLaTON STREET EDSTON, MASSACHUBETTm 02199 WILLIAM D. MARRtNGTON e2........ ........,

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June 21, 1983 BECo. Ltr. #83-132 Regional Administrator, Region I U.S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, PA 19406 Docket No. 50-293 License DPR-35

Dear Sir:

The attached Update Licensee Event Report 79-007/03X-1 "0xygen Analyzer Valves", is hereby submitted in accordance with the re-quirements of Pilgrim Nuclear Power Station Technical Specification 6.9.B.2.b.

As a result of an internal audit to very completion of corrective actions, it was recently determined that committed actions associated with A0-5033A were rescinded shortly after issuance of the original LER.

This update report sarves to clarify actual corrective actions.

If there are any questions on this subject, please contact us.

Respectfully submitted, h

William D. Harrington WDH/mg

Enclosure:

Update LER 79-007/03X-1 cc: Document Control Desk U.S. Nuclear Regulatory Commission Washington, D.C. 20555

" Standard BECo. LER distribution 1 $$*

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