ML19341C258

LER 81-003/03L-0:on 810123,heat Detector Failed in Diesel Generator a Room.Detector Alarm Could Not Be Reset.Cause Not Stated.Jumper Added to Eliminate Alarm on Control Room Panel C-114 Until Sys Repaired.Detector Replaced & Jumper Removed

ML19341C258
Person / Time
Site:	Pilgrim
Issue date:	02/23/1981
From:	Mcloughlin M BOSTON EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML17193A954	List: ML17193A953 ML19341C258
References
LER-81-003-03L, LER-81-3-3L, NUDOCS 8103020553
Download: ML19341C258 (1)

Text

NCC FORM 366 U. S. NUCLEAR REGULATORY COMMISSION (7 773 LICENSEE EVENT REPORT NTROL BLOCK: l l

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(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) la j gl Mj A j P l P l S l I gl150l0l-l0l0l0l0l0j-jol0lgl4l1l1l1]1lgl 25 26 LICENSE TYPE JO l

$7 L A T $8 lg 7 8 9 LICENSEE COOE 14 LICENSE NUMBEM CON'T 10111 7 8 So RCE IL}@l0l5l0l-l0l2]9l3 @lOl1l2l3l8l1l@l0]2l2}3l8l1l@

60 61 DOCKET NUV8ER 68 6'J EVENT DATE 74 75 REPORT DATE 60 EVENT DESCRIPTION AND PROBA8LE CONSEQUENCES h l O 12 i I On January 23, 1981 at approximately 1350 hrs. while performing routine surveillance l

O;3; ; test 8.B.7 entitled " Fixed Dry Chemical System" a heat detector in the 'A' Diesel l 1014 l l Generator room failed. The heat detector alarm which was initiated during the test l l0Isl l could not be reset. A fire watch was immediately initiated as a compensatory measure; gg] l until the sensor could be repaired. On January 31, 1981 the heat detector was re- l 10 l 7 l l placed, the system satisfactorily tested and returned to service and the fire l I O Ie i I watch terminated. ]

C E CODE SUSCO E COMPONENT CODE SUSC00'E SU E l0191 'l Al Blh (Ejh l G lh lT lN lS lT lR lU lh lE l@ W @

13 18 19 20 7 8 9 to 11 12 SEQUENTIAL OCCURRENCE REPORT REVISION g EVENT YEAR REPORT No. CODE TYPE NO.

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_ 21 W 22 l-l 23 1010l3l 24 26 l/l 27 l0 l3 l N 3 lLl 30

[---J 31 l0 l 32 K f AC ON PL NT MET O HOURS S8 ITT FOR 8. SUPPL E M ANUF ACTURE R lAl@lZl@

33 34 lZl@

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CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h l3 l0ll A jumper was added to the system to climinate an alarm which was being generated on ;

i,y,jg panel C-114 in the control room, until the system was repaired. An entry was in the ;

g

" Lifted Wire and Temporary Jumper Log" as entry number 81-1. The detector was re- ,

,,,3,  ; placed in-kind, jumper removed and system returned to normal on January 31, 1981. l i

l i 101 I 80 7 8 9 STA  % POWER OTHER STATUS S RV OISCOVERY OESCRIPTION N.A. l lB l@l

Routine Testing l I1 15* l l El@ l' 1 l 0 l 0l@l" " 8 ACTIVITY CO0 TENT RELEASED OF RELEASE LOCATION OF RELEASE l1 l6 l d @ W@l AMOUNT N.A. OF ACTIVITY l N.A. @ l l PERSONNEL EXPOS ES NUMBER TYPE DESCRIPTION l1l71 l0 10 l0lhlZlhl N.A.

l PeRSONNe'L iN;U7iEs NUU8ER DESCRIPTION y l0 l0 l0l@l N.A. l 7 8 9 11 12 80 LOSS OF OR DAMAGE TO FACILITY ,

TYPE DESCRIPTION 1 9 N.A. l 7 8 9

@l10 80

[2 l O_j ISSU]E

b. l @DE CRIPTION N.A. l l l l l l~l I l l l l l l 5 Y 8 9 10 68 69 80 *,

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