05000327/LER-1982-086, Forwards LER 82-086/03L-0

Forwards LER 82-086/03L-0

ML20062J332
Person / Time
Site:	Sequoyah
Issue date:	07/26/1982
From:	Green H TENNESSEE VALLEY AUTHORITY
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
NUDOCS 8208160332
Download: ML20062J332 (1)

LER-2082-086, Forwards LER 82-086/03L-0

Event date:
Report date:
3272082086R00 - NRC Website

text

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/f TENNESSEE VALLEY AUTHORITV Y 4 - //;,

' t :~Y W 8 CH ATTANOOG A. TENNESSEE 374o1 -

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1750 Chestnut Street Tower II Q <!g ',/

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,30 July 26, 1982 4@ * ['/ ~

Mr. James P. O'Reilly, Director U.S. Nuclear Regulatory Commission Office of Inspection and Enforcement Region II 101 Marietta Street, Suite 3100 Atlanta, Georgia 30303

Dear Mr. O'Reilly:

TENNESSEE VALLEY AUTHORITY - SEQUOYAH NUCLEAR PLANT UNIT 1 - DOCKET NO. 50-327 - FACILITY OPERATING LICENSE DPR REPORTABLE OCCURRENCE REPORT SQRO-50-327/82086 The enclosed report provides details concerning the inoperability of one automatic control valve in the auxiliary feedwater system.

This report is submitted in accordance with Sequoyah unit 1 Technical Specification 6.9.1.13.b.

Very truly yours, TENNESSEE VALLEY AUTHORITY v.A H. J. Green Director of Nuclear Power Enclosure cc (Enclosure):

Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555 Records Center Institute of Nuclear Power Operations 1820 Water Place Atlanta, Georgia 30339 NRC Inspector, Sequoyah 8208160332 gDRADOCKOh 7 ,,

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2 . S 60 62 OOCKET NUMOEM 68 69 EVENT DATE 74 75 REPORT CAT E ao EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h Io i2I l Unit 1 in mode 1 at 100% RTP. Auxiliarv feedwater backpressure control valve lOIal l 1-PCV-3-122 was found leaking oil. This event required entry into LCO 3.7.1.2.

l 0141 I There was no ef'fect on public health or safety. Previous occurrences - one lO IsI l (SORO-50-328/82d81).

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CODE CODE' VALVE SUSCODE COM*oNE NT CODE suBCODE Su eCOO.E lClHl@ yla @ lC l g [V lA [L JV l0 l.Pl @ l C [g 'lZ [ @

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35 36 37 40 el - 42 43 u CAUSE DESCRIPTION AND CORRECTIVE ACTIONS .

Ii iol l 'A cub 6c tee in the valve operator oil line was discovered cracked. The cause ^C a .

's l 1 IiI I the crack has been attributed to overtightening by maintenance personnel during

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M Ii previous maintenance on the valve. The tee was replaced and the valve returned

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,51 i I 31 l to service on 06/29/82. No additional corrective action'is considered required.

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ISSUED DESCRIPTION 45 NRC USE ONL v

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l Name of Preoare" G. B. Kirk /M. R. Hardine Phone _(_61_5) 751-0349 5- . -- @. y

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