ML18348A228

LER 1977-031-03 Primary Coolant System Leakage

ML18348A228
Person / Time
Site:	Palisades
Issue date:	06/24/1977
From:	Hoffman D Consumers Power Co
To:	James Keppler NRC/IE, NRC/RGN-III
References
LER 1977-031-03
Download: ML18348A228 (2)

Text

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• Power company .H:egufatory Docket File General Offices: 212 West Michigan Avenue, Jackson, Michigan 49201

• Area Code 517 788-0550 June 24, 1977 Mr James G Keppler Office of Inspection Region III US Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137

• DOCKEI' 50-255 - LICENSE DPR PALISADES PLANT - PCS LEAKAGE -

ER-77-031 Attached is a reportable occurrence which involves primary coolant system leakage at the Palisades Plant, David P Hoffman Assistant Nuclear Licensing Admini.strator JUN 2 7 1977

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. e LICENSEE . EVENT REPOR,.

Palisades CONTROL BLOCK: l_ _.__.___._.__.....__..I [PLEASE PRINT ALL REQUIRED INFORMATION) 1 6 LICENSE EVENT LICENSE NUMBER TYPE TYPE I

15 olol-lo lo lo lo lol-lol ol

. 25 l411l1l1l1I Io I 3 I 26 30 31 32 .

RETYPOPRTE. .REPORT SOURCE DOCKET NUMBER EVENT DATE REPORT DATE

@mcoN'T 7 8 r *l *I 57 58 w59 LlJ 60 1015101~101215151 61 . 68 lol5l2l6l1l1l 69 . 74 lol6l21411l1I 75 80 EVENT DESCRIPTION lol2I I Following plant start-up, Primary Coolant System (PCS) checks revealed unidentified I 7 8 9 80 lol31 I leakage of 2 to 3 gpm. The problem was located and corrected with the 12-hour limit I 7 8 9 80 lol41 I as required by Technical Specification 3.1.5.a. I 7 8 9 80

• lo151 7 8 9 l~-------------------------------------------.J(=ER=-~7~7-~0~3=1~)----------~' 80 IQ]§]

7 8 9 PRIME 80 SYSTEM CAUSE COMPONENT COMPONENT COOE CODE COMPONENT CODE SUPPLIER MANUFACTURER VIOLATION

@0 I cl JI L!J lvlAILIVIElxl ~ I F I o* I 3 I 5 I L!J 7 8 9 10 11 12 17 43 44 47 48 CAUSE DESCRIPTION 1

~ I Relief Valve RV-2255 between the chemical and volume control tank and the charging I 7 8 9 80 lolsl I pumps was partially unscrewed from its collet. The RV was tightened and the leakage I

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80 j returned below the 1. 0 gpm limit. I

~9 FACILITY METHOD OF 80 7

EEi8 STATUS 9

l£J 10

'l6 POWER I 0 I 6 I 0 I _,.__N_A_ _ _I 12 13 OTHER STATUS 44 w

DISCOVERY 45 I

46 DISCOVERY DESCRIPTION Normal Leak Rate Procedure 80 FORM OF ACTIVITY CONTENT RELEASED OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE

[§} ~ ~ l____N_A_ ___..I NA 7 8 9 10 11 44 45 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION

[1:EI Io I 01 01 ~ NA 7 8 9 11 . 12 13 80 PERS°ONNEL INJURIES NUMBER . DESCRIPTION 7

l2EJ8 9101010111 12 1=-------NA----------------------------------------------.l 80 PROBABLE CONSEQUENCES

.B)) None 7 8 9 BO LOSS OR DAMAGE TO FACILITY TYPE DESCRIPTION 7

II1fil8 9~ 10 NA 80 PUBLICITY

[ill] NA 7 8 9 80

-- ADDITIONAL FACTORS

~* NA 7 8 9 80 7

illfil8 9 80