ML18348A222

LER 1977-028-03 Failure of MOV-3011 to Open

ML18348A222
Person / Time
Site:	Palisades
Issue date:	07/13/1977
From:	Hoffman D Consumers Power Co
To:	James Keppler NRC/IE, NRC/RGN-III
References
LER 1977-028-03
Download: ML18348A222 (2)

Text

consumers

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

• Area Code 517 788-0550 July 13, 1977 Mr James G Keppler Office of Inspection and Enforcement Region III US Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137 DOCKET 50-255, LICENSE DPR PALISADES PLANT - FAILURE OF MOV-3011 TO OPEN - ER-77-028

• Attached is a reportable occurrence which involved the failure to properly operate an engineering safeguard component at the Palisades Plant.

w?J~f?_.

David P Hoffman /

Assistant Nuclear Licensing Administrator

/

• JUL 15 1977

• -**--- *--:-~~~~--***--*-**-**--*

--LICENSEE EVENT REPORT e. Palisades CONTROL BLOCK: . _I_.._.....,...!__..__..l__.l~I (PLEASE PRINT AU REQUIRED INFORMATION].

1 -~

LICENSE EVENT

• LICENSE NUMBER TYPE TYPE lo lo 1-lol ol ol al al-I al al 14 I ii 11 ii JI I31a I 332I 15 25 26 30

' .. **

• i ...

RETYPOPRTE_ . REPORT OOCKl;T NUMBER . REPORT DATE l2E1 coN'T r*-- 1-*-1 SOURCE EVENT DATE .

7 8 57 58 WW 59 60 I ol s Io 1-1 o I2 I s I s I lol6l1l5l1lf.I I o I 61 68 69 . 4 75 111 I 3 I 1 I1 I 80 EVENT DESCRIPTION lol2I I During routine testing, MOV-3011 failed to open when a relay a;a not .operate properly I 7 8 9 . 80 lol3I I While investigating the problem the valve was cranked open to leave it iri a failed safe J 7 8 9 . 80 lol41 I position. It was determined that correction of the problem would exceed 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> .I 7 8 9 . 80 lol51 I (Ref TS, Section.3.3.c and e). The HPSI pumps were therefore aligned to the redundant I 7 8 9 . 80 lolsl I high pressure injection system \ri+hin the aNowable time to eliminate an LCD (ER-77-028)

. 80 J

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

@0 I sf Fl 7 8 9 10 L!.J 11 IR I E1I LI Al YI xi 12 . . 17 LlJ 43 IG I0 1 s I0 I 11!.J 44 47 48 CAUSE DESCRIPTION Iola! I The contact for the "Seal-In" Circuit on General Electric relay 42X-237 _did not close I 7 8 9 80 lolsl I completely when the relay was energized, allowing the relay to "Chatter." I 7 8 9 80

.~9'---------------------------------.---------~------------------------~--------------'80 FACILITY METHOD OF

.% POWER DISCOVERY DESCRIPTION I w STATUS OTHER STATUS OISCOVERY EE1 9~ 10ltlol. ol12 13I*

7 0 NA 44 45 I

46 li.8.

80 I

FORM OF ACTIVITY* CONTENT rn*

7 8 RELEASED 9

LiJ OF* RELEASE

• W 10 11 AMOUNT OF ACTIVITY NA

._I------"......___ ____.,. I 44 I

45

. LOCATION OF RELEASE NA 80 I

PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION u [El I aI ala I LzJ

.7 8 9 11 12 . 13 80

• PERS"ONNEL INJURIES .

NUMBER DESCRIPTION EE1 I oI.oI ol11 7 8 9 12 80 PROBABLE CONSEQUENCES

@ I F111l; redundant back1ip system avai 1 able) 7 0 9 80 LOSS OR DAMAGE TO FACILITY TYPE DESCRIPTION mfil.8 9w 7 10

, NA 80 PUBLICITY om s 7 0 NA 80

~ ADDITIONAL FACTORS NA 7 8 9 . 80

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7 0 s 80