05000416/LER-1982-084-03, /03L-0:on 820929,control Room Indication Lost on Plant Chilled Water Auxiliary Bldg Isolation Valve 1P71F301 During Procedure 06-OP-1P71-Q-0001 Cycling.Caused by out-of- Adjustment Limit Switch.Switch Adjusted

/03L-0:on 820929,control Room Indication Lost on Plant Chilled Water Auxiliary Bldg Isolation Valve 1P71F301 During Procedure 06-OP-1P71-Q-0001 Cycling.Caused by out-of- Adjustment Limit Switch.Switch Adjusted

ML20027D321
Person / Time
Site:	Grand Gulf
Issue date:	10/28/1982
From:	Chenault W MISSISSIPPI POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20027D318	List: 05000416/LER-1982-084, Forwards LER 82-084/03L-0 05000416/LER-1982-084-03, /03L-0:on 820929,control Room Indication Lost on Plant Chilled Water Auxiliary Bldg Isolation Valve 1P71F301 During Procedure 06-OP-1P71-Q-0001 Cycling.Caused by out-of- Adjustment Limit Switch.Switch Adjusted
References
LER-82-084-03L, LER-82-84-3L, NUDOCS 8211040118
Download: ML20027D321 (1)

LER-1982-084, /03L-0:on 820929,control Room Indication Lost on Plant Chilled Water Auxiliary Bldg Isolation Valve 1P71F301 During Procedure 06-OP-1P71-Q-0001 Cycling.Caused by out-of- Adjustment Limit Switch.Switch Adjusted

Event date:
Report date:
4161982084R03 - NRC Website

text

NRC FORM 236 U.S. NUCLEAR REGULATORY COMMISSION (7 774 Attachment to AECM-82/514 4

LICENSEE EVENT REPORT Page 1 of 1 CONTROL BLOCK: l l

l l

l l

l (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) 1 6

l0 l 1 l lM_lS lC lG l S l 1 l@l0 l0l-l0l0l0l0l0l-l0l0l@l4l1l1l1l1l@l l

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7 8 9 LICENSEE CODE 14 15 LICENSE NUMBER 25 26 LICENSE TYPE Jo b7 CATb8 CON'T lOlll ERCE IL hl 0] 5 l 0 l 0 l 0 l 4 l 1 l 6 l@l 0 l 9 l 2 l 9 l 8 l 2 l@l 1 l 0 l 2 ] 8 l 8 l 2 l@

7 8

60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80

- EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h O 2 lDuring Non-Nuclear Heatup with the Plant in Operational Mode 3, Control Room l

[O lal l indication was lost on Plant Chilled Water Auxiliary Building Isolation Valve IP71F301 l l O 14 I lwhen the valve was cycled during Routine Surveillance Procedure 06-0P-1P71-Q-0001.

l l o I s l lThe lost indication prevented recording the closing time of the valve as required by l

l 0 l 6 l lT.S. 3. 6. 6. 2.

This event resulted in no release of radioactivity, damage to the l

l o l 7 l lfacility or effect upon public health and sa fety. This event is being reported per l

loisl lT.S.6.9.1.13.b.

l 7

8 9 80 DE CODE SUBC E COMPONENT CODE SUBC DE SU E

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9 10 11 12 13 18 19 20 SE QUENTI AL OCCURRENCE REPORT REVISION LE R RO EVENT YEAR R EPOR T NO.

CODE TYPE N O.

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J3 34 3S 36 31 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h iil0l(Upon investigation, it was found that the limit switch for this isolation valve (R. A. l (Hiller, size 2-1/2", air operated gate valve, model 105A-A015) was out of adjustment.

I i i lilji IThe limit switch was adjusted and the above Surveillance Test satisfactorily completed I i 3 lon September 29, 1982. This LER constitutes a final report.

l 1 4 l

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8 9 80 ST S

• . POWE R OTHER STATUS IS O RY DISCOVERY DESCRIPTION l1 l5l W @ l010l0l@l NA l

lBl@l Surveillance Test l

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44 43 46 80 COOTcNT ACTIVITY RELE ASED OF RE LE ASF AMOUNT OF ACTIVITY LOCATION OF RELEASE IZ l @ [_Zj @ l NA l

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1 6 7

8 9 10 tt 44 45 80 PERSONNEL EXPOSURES NUUSE H TYPE DESCHlPTION l 0 l 0 l 0 l@l Z l@l NA l

1 7 Pe RsONNE't iNw' dies NUVMER D E SCRiPTION QJ l 0 l 0 l 0 l@l l

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" 9 12 8211040118 811020 80 TO F ACillTY @

PDR ADOCK 05000416 LOS OF OR DAMAG NA s

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M U 10 80 12101 LN_f(@ll ESCRIPTION lMUf NA l

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8 9 to 68 69 80 %

Original signed by W. H. Chenault N AME Of PREPAREH PHONE.