05000255/LER-1979-022-03, /03L-0 on 790426:during Routine Surveillance of safety-related snubber,S-9 (Main Steam Line) Had No Visible Oil Level.Oil Leakage from Snubber Caused by Failed O-ring,attributed to Old Age.Ring Replaced

/03L-0 on 790426:during Routine Surveillance of safety-related snubber,S-9 (Main Steam Line) Had No Visible Oil Level.Oil Leakage from Snubber Caused by Failed O-ring,attributed to Old Age.Ring Replaced

ML18043A709
Person / Time
Site:	Palisades
Issue date:	05/25/1979
From:	CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML18043A708	List: 05000255/LER-1979-021-03, /03L-0 on 790427:during Routine Surveillance of safety-related snubbers,S-44 (LPIS Pump Discharge) Had No Visible Oil Level.Oil Leakage from Snubber Caused by Failed O-ring,attributed to Ald Age.Ring Replaced 05000255/LER-1979-022-03, /03L-0 on 790426:during Routine Surveillance of safety-related snubber,S-9 (Main Steam Line) Had No Visible Oil Level.Oil Leakage from Snubber Caused by Failed O-ring,attributed to Old Age.Ring Replaced ML18043A707
References
LER-79-022-03L, LER-79-22-3L, NUDOCS 7906010248
Download: ML18043A709 (1)

LER-1979-022, /03L-0 on 790426:during Routine Surveillance of safety-related snubber,S-9 (Main Steam Line) Had No Visible Oil Level.Oil Leakage from Snubber Caused by Failed O-ring,attributed to Old Age.Ring Replaced

Event date:
Report date:
2551979022R03 - NRC Website

text

, *' n ee PALISADES NRC FORM 366 (7-771 U.S. NUCLEAR REGULATORY COMMISSION LICENSEE EVENT REPORT CONTROL BLOCK: I I G) 1 6

(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

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8 9

LICENSEE CODE 14

~5 LICENSE NUMBER qo101G)l411!1IJl1!011*10

~5 26 LICENSE TYPE 30 57 CAT 58 CON'T

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=~~~~~ L1J©i 015 101 *01 0121 5151(?)1 0141 21617191@101 512151 71910 60 61 DOCKET NUMBER 68 9

EVENT DATE 74 75 REPORT DATE BO EVENT DESCRIPTION AND PROBABLE CONSEQUENCES@

I During routine suryeillance of safety-related snubbers, S-9 (main steam 1 line) had no visible oil level.

This is a degraded mode of operation [QJIJ I permitted by TS 3.20.1.

The snubber was restored to an operable status [Q]}J 1 within the time required by TS 3.20.1.

Event had no adverse effect [ill] I on public health or safety.

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8 SYSTEM CODE ISi Fl@

9 10

\\!.Y REPORT I 71 S1

CAUSE

CAUSE COMP.

CODE SUBCODE COMPONENT CODE SUB CODE L!J@ L!U@ !S! U!P 1 OJR JTI@ LD.J@

11 12 13 18 19 SEQUENTIAL OCCURRENCE REPORT REPORT NO.

CODE TYPE VALVE SUBCODE Lz.J@

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~ Io I 3 I I L I I I REVISION*

NO.

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LER/RO CVENT YEAR NUMBER 21 22 23 24 26 27 28 29 30 31 ACTION FUTURE EFFECT TAKEN ACTION ON PLANT SHUTDOWN

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METHOD HOURS SUBMITTED FORM ~us.

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o_-_r_i_n_:g::__J ITID 1 failure is attributed to age and the service conditions under which the rr:m snubber is used.

The snubber was replaced.

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FACILITY STATUS

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METHOD OF OTHER STATUS V:::::J DISCOVERY DISCOVERY DESCRIPTION @

N/A I

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46 80 80 N/A LOCATION OF RELEASE @

44 45 80 P:RSONNEL EXPOSURES NUMBEP.

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