ML18346A253

LER 1980-046-00 for Palisades Nuclear Plant, Hydraulic Snubber Failure

ML18346A253
Person / Time
Site:	Palisades
Issue date:	01/14/1981
From:	Hoffman D Consumers Power Co
To:	Keepler J NRC/IE, NRC/RGN-III
References
LER 1980-046-00
Download: ML18346A253 (2)

Text

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

• i517) 788-0550 January l4, l98l Mr James G Keppler Office of Inspection and Enforcement Region III U S Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60127 DOCKET 50-255 -DPR-20 -PALISADES PLANT -LICENSEE EVENT REPORT

-HYDRAULIC SNUBBER FAILURE

• On the reverse side is LER 80-046 which is reportable under Technical cations 6.9.2.B(2).

David P Hoffman Nuclear Licensing Administrator CC Director, Office of Nuclear Reactor Regulation Director, Office of Inspection and Enforcement NRC Resident Inspector, Palisades Plant

.... *

• PALISADES PLANT NRCFORM366 C7-77J U.S. NUCLEAR REGULATORY COMMISSION LICENSEE EVENT REPORT CONTROL BLOCK: I I 10 I PLEASE PRINT OR TYPE ALL REQUIRED INFDRMATIDNI 1 e I MI I I P I A IL I 1 101 o I o I -I o Io Io Io I o I -Io Io 1014 I 111 I 111 101 I I © 7 8. 8 LICENSEE CODE 14 LICENSE NUMBER . 25 26 LICENSE TYPE ao 57 CAT SB filI] 7 8 l!!..JG)I o I 5 Io Io Io J 21 5 15 GI 11 2 11 17 18 Io !@I 0111 it 41 8 I i 10 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES@

I During routine surveillance testing* of hydraulic snubbers, snubber S-5 []:[D I (main steam line) was determined to be inoperable due to no visible []]IJ I oil level. Reportable per TS 6.9.2.B2 and TS 3.20. See LER 80-16 for []]]) I similar occurrence.

No threat to public health.. or safety resulted.

r []]]] []JI} []]]] 7 8 9 rr:m 7 8 SYSTEM CAUSE CAUSE COMP. VALVE CODE CODE SUSCODE COMPONENT CODE SUBCODE . SUB CODE fHfBI@ I!J@ 1s1u1P101R1T1@ 9 10 11 12 13 18 19 '° SEQUENTIAL OCCURRENCE REPORT @ LER/RO LVENTYEAR REPORT NO. CODE TYPE I 81 o I I I Io I 416 I 1.,...1 10 I 3 I .. I I 21 22 23 24 26 27 28 29 30 31 so REVISION NO. L£J 32 TAKEN ACTION ON PLANT METHOD HOURS 22 '6UBMITTED FORM i;us. SUPPLIER ACT10!'4 FUTURE EFFECT SHUTDOWl'4 ATTACHMENT NPR0-4 PRIME COMP. COMPONENT MANUFACTURER L£1@W@ LLI@ 10 101 01 I l!J@ l!J 33 34 JS 36 37 40 41 42 43 jB 12 Io I 91@ CAUSE DESCRIPTION ANO CORRec*rrve ACTIONS @ . " 47 unit. DJ]] I Loss of oil caused by failed Snubber was replaced new OJI] c:rrn IIIIJ Replacement of hydraulic snubbers with mechanical units is being evaluated.

lIEJ 7 8 9 80 FACILITY STATUS % 'OWER OTHER STATUS lilIJ l!.J@ I 019 I 61@)1 NA I 7 . S AEnVITY 12 ll 4" RELEASED OF RELEASE AMW'r OF ACTIVITY . lIJI] l.z.J @ Lzl@ I I 7 I II 10 11 44 'EASOllllllEL EXl'OSURES Q METHOD OF

• DISCOVERY DISCOVERY DESCRIPTION Surveillance Program 45 46 80 NA LoCATION OF RELEASE 80 .. UMBEP. A TY'E OESCAIP'TI.ON IIill I 0 , . 0 I

...... N .... A..__ ____________________

_ 7 I 9 11 12 13 80 PERSON1'4EL INJURIES /,;":\ .. UMllEA DESCRIPTION\!!!

Em Io I o I ol@----___ N_A _____________________

_ 7 I II 11 12 110 LOSS QC OR OAM .. GE TO FACILITY 1.i3' TYPE DESCRIPTIOfol v::::J filIJ NA 7 8 11 10 80 'UBLICITY t::'\ r::-r:::'1 ISSUED!'.:'::\

OUCRll'TION A 7 *. 8 10 NRC use ONLY I I 1-1 I I I I I I ! ! I 69 69 . BO