ML20082R553

RO 83-43:two Independent Nonautomatic,Motor Operated Isolation Valves on Containment Spray Pump Discharge Pipes Found Closed & Deenergized Instead of Open & Deenergized,As Required.Caused by Operator Error.Valves Opened

ML20082R553
Person / Time
Site:	Indian Point
Issue date:	11/30/1983
From:	Christopher Jackson CONSOLIDATED EDISON CO. OF NEW YORK, INC.
To:	Murley T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
RO-83-43, NUDOCS 8312130209
Download: ML20082R553 (1)

Text

--

Chiri:s W. J:ckssn v ce prem .

Consohdated Edison Company of New York inc.

Indian Point Stabon .

Novanber 30, 1983 Broadway & Bleakley Ave ,

. ggg ' Buchanan, NY 10511 2

Docket No. 50-247 Dr. %cmas E. Murley, Regional Administrator Region I U. S. Nuclear Regulatory Comnission, 631 Park Avenue King of Prussia, Pennsylvania 19406

Dear Dr. Murley:

In'accordance with the Technical Specifications of Facility Operating License No. DPR-26, the following confirms notification on Novenber 29, 1983 to the NFC Cperations Center of the Reportable Occurrence LER 83-43.

l his event is the type defined in Technical Specification, Section 6.9.1.7.1.f.

During a routine surveillance test at full power, two independent non-autcmatic, motor operated, isolation valves on the contaiment spray

~

pmp discharge pipes were found closed and de-energized instead of open and

de-energized, as required. 'Ihis condition isolated both trains of contain-ment spray. The two valves were innediately returned to the open position and de-energized. Post accident containment' cooling and iodine renoval capability was available since all five fan cooler units were operable, when required, throughout the time period of contairunent spray

.inoperability. % e preliminary determination of the cause of this event has been attributed to operator error. We innediate corrective action

. also included .reverifying the safeguards position of all valves susceptible to this type of operator error. This effort has been ccmpleted and no

, other valves were found mispositioned.

i l Consolidated Edison believes that this report also satisfies the requireents of 10 CFR Part 21. .

1 Very truly s, l ws

/

cc

Mr. William Mcdonald, Director (2 Copies)

~ Office of Management Infonnation and Program Control' c/o Distribution Services Branch, DDC, ADM U. S. Nuclear Regulatory Ccmnission Washington, D. C. 20555 Mr. T. Foley, Senior Resident Inspector U. S. Nuclear Regulatory Ccunission l P. O. Box 38 Buchanan,'New York 10511

, 8312130209 831130 l PDR ADOCK 05000247 S PDR h@%

6

'