ML20027D463

LER 82-096/03L-0:on 821001,fire Zone 2-04 Deactivated in Security & Fire Protection Computer Due to Inability to Reset Spurious Smoke Detector Alarm.Caused by Spurious Reaction,Not Component Failure.Alarm Reset

ML20027D463
Person / Time
Site:	Grand Gulf
Issue date:	10/28/1982
From:	Walker K MISSISSIPPI POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20027D449	List: ML20027D448 ML20027D463
References
LER-82-096-03L, LER-82-96-3L, NUDOCS 8211040331
Download: ML20027D463 (1)

Text

NRC FOWM 366, U.S. NUCLEAR REGULATORY COMMISSION (7 77) * ' A LICENSEE EVENT REPORT Attachment to AECM-82/513 Page 1 of 1 CONTROL BLOCK: l l l l l l l (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) 1 6 l0l1llM 7 8 9 lS lG lG lS l1 l@l0l0l-l0l0l0l010l-l0l0l@l4l1l1l1l1l@l LICENSEE CODE 14 15 LICENSE NUMBER 25 26 LICENSE TYPE JO l

b7 CAT 68 l@

CON'T lol1I s$Ry lL @l 0l 5 l 0 l 0 l 0 l 4 l 1 l 6 @l 1 l 0 l 0 l . l 8 ] 2 l@[1 l 012 l 8 l 8 l 2 l@

7 8 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 7b REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h l o l 2 l lOn October 1,1982, fire zone 2-04 was deactivated in the Security and Fire Protection I l o 131Cl omputer due to inability to reset a spurious smoke detector alarm. No fire or smoke l lol4l lwas present. An hourly fire watch was established per Technical Specification 3.3.7.9a.t loisl l This had no affect on the safety of the plant and did not constitute a threat to the 1 l 0 l6 ] health and safety of the public. l 10171 I i 10181l I 7 8 9 80 SYSTEM CAUSE CAUSE COMP. VALVE CODE CODE SUBCODE COMPONENT CODE SU8 CODE SUBCODE O 9 l Al Bl@ l X l@ l Z l@ l Il Nl Sl Tl Rl Ul@ y@ lZ l@ 20 7 8 9 10 11 12 13 18 19 SEQUENTIAL OCCURRENCE REPORT REVISION

,,_ EVENT YE AR REPORT NO. CODE TYPE N O.

yug 18 l2 l h "LER'ROt

_ 21 22 l-j 23 l 0l 9l 6l 24 26 l/l 27 l 01 3 l 28 29 W30

[--J 31 U32 AK N AC ON ON PL NT M T O HOURS SB IT FOR b B SUPPLIE MAN FACTURER kl@WQ WQ ]@

33 34 25 36 l0 l0 l0 l0 l 3/ 40

{@

41 J@

42 lAl@

43 l44 Hl2 l6 l0l@ 41 CAUSE DESCRIPTION AND cORPECTIVE ACTIONS Iilol $1nce no ccmpoaent failure could be found. the alarm was reset. The zone was I i i Ireturned to service in the computer on October 4. 1982 and was observed for 2 vonk=t 1 7 pith no additional problems. The alarm was apparently spurious and no further action l l 1 l 31 lwill be taken. This is intended as a final report. l l1 14 I l I 7 8 9 80 ST S  % POWER OTHER STATUS DISCOV HY DISCOVERY DESCRIPTION i 5 lB l@ l0 l 0 l 0 l@l NA l l A l@l Alarm in Control Room l ACTIVITY CO TENT RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE l 1 l 6 l [Z_] @D OF RELEASE [,Z_j@l NA l l NA l 7 8 9 to 11 44 4b 80 PERSONNEL EXPOSURES NUMBE R TYPE DESCPlPTION l t l 7 l l0 l0 l0 l@l Zl@l NA l PERSOnNd'iN;u'4ES NuuBER DESCRIPTION @

l1 la l l0 l0 l0 l@j NA l 7 8 9 11 12 80 LOSS OF OR DAV4GE TO FACILITY TYPE DESCRIPTION l1]91 7 8 9 b @l 10 NA l 80 PU B L ICt TY Q s211040331 821028 N RC USE ON L Y PDR ADOCK 05000416 7

2 o 8 9 iSsuEn@oEsCme

[N_j l to nON U g PDR l 63 69 llllllllll lll2 80 5 NAME OF PREPAREROricinal sfened by Ken T.. IJn1k o r PHONE: