ML18352A319

Licensee Event Report ER-76-27 - Containment Purge Supply Valve

ML18352A319
Person / Time
Site:	Palisades
Issue date:	09/07/1976
From:	Bixel D Consumers Power Co
To:	James Keppler NRC/RGN-III
References
LER 1976-027-00
Download: ML18352A319 (2)

Text

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

• Area Code 517 788-0550 September 7, 1976 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, ER-76-27 CONTAINMENT PURGE SUPPLY VALVE Attached is a reportable occurrence which relates to the Palisades Plant. David A. Bixel Assistant Nuclear Licensing Administrator SEP 13 1976 9CENSEE EVENT REPORT 9 CONTROL BLOCK: I 1 I I I I I [PLEASE PRINT ALL REQUIRED INFORMATION]

6 LICENSEE NAME Al rJ1I 7 8 9 14 LICENSE NUMBER I ol ol-lol ol olo lol-lo lo I 15 25 LICENSE TYPE 14111111111 26 30 EVENT DATE EVENT TYPE lo 11 I 31 32 REPORT DATE @I!] CON'T I I 7 85 .... 7---._5_.B REPORT TYl"E. CTJ REPORT SOURCE w DOCKn NUMBER lo 1 s I o 1-1 o I 21 s Is I lolBl213ITl61 lol2lolrlrl6I 59 60 61 68 69 74 75 80 EVENT DESCRIPTION lo[2I I During quarterly testing 7 B 9 o.f penetration

1. 1 (Purge Air Supply CV1808) the as found !Piaf I leakage rate was unacceptably high. 7 B 9 This caused the total local leak rate to be I BO I 80 lol41 I above Technical Specifications limit. 7 B 9 Valve packing was the source of the leakage, I 80 lol5J J repairs were made and an acceptable test run (ER-76-27), 7 B 9 IQ]§) 7 B 9 SYSTEM CAUSE CODE CODE COMPONENT CODE @0 I sl nl [QJ Iv I A I LI vi El x I 7 8* 9 10 11 12 17 CAUSE DESCRIPTION PRME COMPONENT SUPPLIER LlJ 43 COMPONENT MANUFACTURER I c 1 s 1 a 111 44 47 I 80 80 VIOLATION lLl 48 lol0I I The valve stem packing is a multi-ring packing with a grease fitting located I 7 8 9 80 lolsl I between two rings of packing. 7 8 9 Recent modification to the grease fitting contrib-I I uted to the observed leakage by permitting leakage through the fitting. 8 9 FACILITY METHOD OF STATUS . '16 POWER OTHER STATUS DISCOVERY DISCOVERY DESCRIPTION EEJ L!J l1lolol NA I l_gJ 7 B 9 10 1.2 13 44 45 FORM OF ACTIVITY CONTENT 46 RELEASED OF RELEASE AMOUNT OF ACTIVITY rn LI _, ___ NA ___ .... 1 7 8 9 10 11 44 45 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION 010 I 01 NA 7 8 9 11 12 13 PERS"ONNEL INJURIES NUMBER DESCRIPTION E:E1 I 01 0 I 0 I NA 7 8 9 11 12 PROBABLE CONSEQUENCES I None -The inner valve was tested and found acceptable. 7 8 9 LOSS OR DAMAGE TO FACILITY TYPE DESCRIPTION 7 8 9 10 PUBLICITY EJZl None 7 8 9 NA NA LOCATION OF RELEASE NA 80 -(See Line lj8) 80 80 80 80 80 80. 80 80 ADDITIONAL FACTORS I (Contd From Line was 10) All modified grease fittings will be replaced with the [Tifil I original design. 7 8 9 80 I 80