ML18353A845

Licensee Event Report UE-75-13 - Pcs Leakage Slightly Greater than 1 Gpm for About Two Hours

ML18353A845
Person / Time
Site:	Palisades
Issue date:	12/22/1975
From:	Bixel D Consumers Power Co
To:	James Keppler NRC/RGN-III
References
LER UE-1975-013-00
Download: ML18353A845 (2)

Text

• consumers Power company General Offices: 212 West Michigan Avenue, Jackson, Michigan 49201

• Area Code 517 788-0550 December 22, 1975 Mr James G. Keppler.

Office of Inspection Enforcement Region III US Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137 DOCKET 50-255, LICENSE DPR-20 PALISADES PLANT, REPORTABLE OCCURRENCE UE-75-13 Attached is a reportable occurrence which relates to the Palisades Plant and has been classified as a condition leading to operation in a degraded mode.

Plant Technical Specifications permit operation to continue for 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> with unidentified primary coolant system leakage between 1 and 10 gpm. Leakage was identified at a sample isolation valve.

David A. Bixel Assistant Nuclear Licensing CC: File

.NSEE EVENT REPORT

• • C_(!~J~OL BLOCK: ....__.____.l~.._I I _._I___.._I___.! [PLEASE PRINT ALL REQUIRED INFORMATION) 1 6 LICENSEE LICENSE EVENT NAME LICENSE NUMBER TYPE TYPE IM I I Ip I A I LI i I Io Io 1-1 o I olo lo I o 1-1 o I o I l411l1l1l1I I

. . 8 9 14 15 25 26 30 31 32 REPORT REPORT CATEGORY TYPE SOURCE DOCKET NUMBER EVENT DATE REPORT DATE 7

@IT!coN'T 8

I* I* I 57 58 w59 11.J 60 lo Is Io 61 I~ I o I 2 I s I 5 I I691l1 l2 l2 l1lsl 68 74 11 I2 I2 I 2 I 1 I s I 75 80 EVENT DESCRIPTION 10121 !During normal operation, PCS leakage was observed to be slightly greater than 1 gpm I 7 8 9 80 10131 I (unidentified) for about two hours. Leakage was subsequently identified at a sample I 7 8 9 80 lol41 I isolation valve. This occurrence was a condition leading to operation in a degraded I 7 8 9 80 lo15l !mode and is permitted for a period of 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> with plant operating. Valve repair I 7 8 9 80 lol0I I was com:i;>leted (UE-75-13). I 7 8 9 PRIME 80 SYSTEM CAUSE COMPONENT COMPONENT SUPPLIER MANUFACTURER VIOLATION w

CODE CODE COMPONENT CODE

@0 I LI sl I v I A I L I vi El x I ~ *I 61 1 I 61 s 1 L!J 7 8 9 10 ' 11 12 17 43 44 47 48 CAUSE DESCRIPTION

~ I Valve leakage. The valve type is SS-64-9-RS-AI-NC. The valve has been temporarily 7 8 9 80

@:Jfil capped.

7 8 9 80

~ 9~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~-8~D

~ E FACILITY METHOD OF STATUS  % POWER OTHER STATUS DISCOVERY DISCOVERY DESCRIPTION EE] ~

9 I 0 I 1I 9I 13 NA 44 l.!J 45 46 NA 80 7 8 10 12 FORM OF ACTIVITY CONTENT RELEASED OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE 7

rn 8 LzJ 9

~I.._

10 11

___N_A_ _ ___.

44 45 NA 8D PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION

~lo lo lo I LzJ NA 7 8 9 11 12 13 80 PERSONNEL INJURIES NUMBER DESCRIPTION EE lo lo Io I 7 8 9 NA 11 12 80 PROBABLE CONSEQUENCES

~ None.

7 8 9 80 LOSS OR DAMAGE TO FACILITY TYPE DESCRIPTION

~l&J NA 7 8 9 10 80 PUBLICITY

[2£1 NA 7 8 9 80 ADDITIONAL FACTORS

• NA 7 8 9 80 GE8 9 7 80 I-.

' .......