ML20008F962

LER 81-028/03L-0:on 810407,during Steady State Operation, Electrolyte Level in Some Cells of 2R42-S001A & B Station Batteries & 2R42-S002A Diesel Generator Battery Found Above High Level Mark.Caused by Personnel & Procedure Errors

ML20008F962
Person / Time
Site:	Hatch
Issue date:	05/05/1981
From:	Nix R GEORGIA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20008F956	List: ML20008F955 ML20008F962
References
LER-81-028-03L, LER-81-28-3L, NUDOCS 8105120404
Download: ML20008F962 (2)

Text

~

u.n c ^ --

LICENSEE EVENT REPORT -

l l l l l l (PLE ASE PPINT OR TYPE ALL RE*UtnED INFORMAil;N)

{y coNTnOL DLOCK: l o i IG l A lE lI l11 l2 l@l0 l0 l- l0 l0LICLNSt: l0 l0Nut.tutH l 0 l - l 0 l 0 l@l 24 4N l 1 LICLNsl l 1 l 1lyrel 1JJ l@lbi l LAI M l@

i 8 9 LICENsLE COUL I4 lb C. . i o i "7,,'" l Lj@l0 l 5 l0 l0 10 l3 l6 16 l@l0 b3 14 10 l7 18 l1lb l@l0ltl0l5l8l1l@

EVENT DATE 14 ntPOn1 DAT E tid 7 8 60 bl DOC A f f f.U'.iU E H t EVENT o[LCHIPTION Af!D PHOBAOLf: CONSEQUENCES h'd o 2 l Uhile in a steady state of operation at 2432 felt, it was discovered that l ini3; l the electrolyte level in some cells of the 2R42-S001A and B Station Bat- l teries and the 2R42-5002A Diesel Generator Battery was above the high l lal41 L o s l level mark. Some cells were also found to be above the low level mark. l la lc i l Tech Specs 4.8.1.1.3.b.3 and 4.8.2.3.2.b.3 requires the electrolyte l lo l7] [ level to be between the low and high level narks. Public health and I o a i safety were not affected. This is a non-repetitive event. l 80 7 8 9 DE CODE SUDCO E COMPONENT CODE SUB DE SU E o o I E l C l@ [A_j@ l C l@ l B l A l T l T l R l Y l@ l Z l@ lZ l @

8 9 to in 12 13 18 19 20 7

SEQUENTIAL OCCUR RE NCE HEPORT REVistON EVENT YE AR REPORT NO. CODE TYPE NO.

O ,"LE jga7 R ROl8lll [--J l0l2l81 24 20 y

27 l013 l 28 M lL l 30

[. _-j 38

[0j 32

_ 23 22 23 T KE ACT r O PL NT TET4 HOURS sB IT D FOn t U6. S PLI YA 'cA TuntA

[_lij@lGl@

33 34 lZl@

as lZl@

36 l010l0l0l 3/ 40 l43Y l@ l4?N l@ l43A l@ lGl1l815l@

44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h l i 107 l The cause of the event has been attributed to nersonnel error and nrncodural I i i l inadequacies. After the electrolyte level in the affected cells was I i 2 l corrected, personnel were counseled as to the importance of performing l i 3 l battery surveillance correctly. The battery procedures are also being l 1i p i l revised to place more emphasis on the electrolyte level . l

'st2!Es* . aoe.t n ovstn sTATVs b isEnv' e' oiscoveny oEsCniPrioN @

Inservice Inspection 11158 I (_[J@ l 1 l 310' l@l" NA l l0l@l

• • '8 8 l

Altivity co'ecNT nete Asco or ostr AsE LOCATION OF RELEASL AvouNT or ACriviry @l l HA i c

] @ W@l '

NA l

' ecnsor. Nil exrOsunts NUffitf n TYPE DCsCntrTION NA l i T l 0] 0l 0l@l '

Zl@l"

• rensoNNe'tiNm%cs Nuvnt n ocseniP rioN@

NA l0l010l@l l i ,.

7 8 9 11 12 80 TV t ( I kC PI Of NA l D iRb L3J@l 7 9 In 80 e

l CulPilON l>lai iM(ld((81 L NA l llllllllllll))

siO 5 QD,D,,<,, R. T. nix, Supt. of naint. ,so, <Ii2167-7781 ~j

Q, V LER No.: 50-366/1981-028 Licensee: Georgia Power Company facility: Edwin 1. Hatch Docket No. : 50-366 Narrative Report for LER 50-366/1981-028 On April 7,1981, while in a steady state of operation at 2432 MWt, it was discovered, during a' battery inspection, that the electroly e. level-in one cell of the 2R42-S002A, Diesel Generator Battery, was above the high level mark and that the electrolyte level in some cells were below the lou level j mark. - Tech Specs 4.8.1.1.3.b.3 requires the level to be maintained between the low and high level marks. On April 10, 1981, with reactor power at 2121 MlIt, some cells of the 2R42-5001A and "B" Station Satteries were found to have the electrolyte above the high level marks. These battery cells are also required to have the electrolyte level between the low and high . level marks per Tech Specs 4.8.2.3.2.b.3. In-each event the electrolyte-level' in the affected battery cells was corrected. Plant operation and public health and safety was not affected by either incident. This is a non-repetitive event.

The cause of this event has been attributed to personnel error and-procedural

~

inadequacies. The responsible personnel were counseled as to the importance of maintaining the electrolyte level between the low and high level marks and the battery _ procedures are being. revised to place more' emphasis on the electrolyte level.

Because batteries are generic to both units, the electrolyte level in all batteries was checked. The battery procedures on the other unit are also being revised.

p r w w -