ML20081F848
| ML20081F848 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 10/27/1983 |
| From: | Bergan G, Scott D COMMONWEALTH EDISON CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| 83-1039, LER-830-036-03L, LER-830-36-3L, NUDOCS 8311040005 | |
| Download: ML20081F848 (3) | |
Text
. - - _ _ _
CO,NTRCL SLCCX: l l
l l
I l
l (PLEASE PRINT CR TYPE ALL RECUtRED INFORMATICN) l 6
' 3 l t l l l l L l D l R l S 13 j@l 0 l 0 l - l 0 l 0 l 0 l 0 l 0 l-l0 l0lgl4l1l1 l1 l1 lg l
[g 3 9 UCENSEE CODE 14 iS uCENs4 NuMSER 25 26 UCENSE TYPE JG 57 CAT 54 l CCN'T
)oItJ 3;g,"# lL @l0l 51010l0l2l4l9 @l01913 l0 l 8 l 3 @l1 l0 l2 l 7l 8 l 3 l@
"8#C f
3 60 63 GCCXET NUMBER 6a 69 EVENT CATE 74 75 REPCRT CATE 40 CVENT CESCRIPTION AND PRCSA8LE CCNSECUENCES h 6o62I l During a normal unit shutdown, the APRM gain adjustment factor (AGAF) for APRM's 2, 3, l
l i o 131 14 and 5 exceeded 1.03 Because both scram channels had less than the minimum numbel of l.
- o i A; joperable APRM channels, Tech Spec Table 3.1.1 action B was invoked.
Power was already in l l
lo esi i 1RM range.
Safety significance was minimal since IRM's were fully inserted and opera-g 1loisI itional.
There was no effect on health or safety of the public.
This is first reported g
o l 7 ] joccurrence of this type.
0edl I l
ss so SYSTEM CAUSE CAuSE COMP.
vat.V8 CecE cocE-suscocE cOMPCNENT CCDE SUSCOCS SUSCQQS o49I l Il C l@ l Al@ l A l@ ll lN lS l T l R! U l@
l Ql@ l Z l @
s e
to in 12 33 is is zo SEcuENTIAL CCOURRENCE REPCRT REVISICN LIR EVENTYEAR REPQRT NO.
CCCS TYPE NQ.
@,ag/RO
[_8 l 3 l l-l l 0 l3 l6 l y
l0l3l l Ll.
l-l l0l 25 22 23 24 26 27 23 23 30 3:
32 AC C P T
METH HCURS
$8 I FORf S.
P UE M OF RER l X Igl Hlg l5Zl@
l Zl@
l0l0l0l0l lNl@
l N I@
lNl@
lG l0 l8 l0 l@
33 34 3
06 37 40 4:
42 43 44 47 CAuSE DESCalPTICN AND CCRRECTIVE ACTICNS h itoll The event was caused by failure to follow shutdown procedure DGP 2-1 Which reouires an 1
itill instrument mechanic be ' utilized for gain adjustments.
Routine shutdown continued and I
i621 l compliance with Tech Specs was achieved within an hour.
The personnel involved will
(
.,3, l be re-inst ructed regarding adherence to this procedure, j _
i4i l I
a s so
% PCW8R CTHER STATUS Of RY CISCOVERY DESCRIPTION I u l l D l@ l 0] 1 l 7 l@l N/A l
l Al@l Operator Observation l
a, ig i2 is 44 46 g
so AMCUNTCP ACTIVITY @ l LOCATION CP REl. EASE @
c.EtaAsEo l 6 l l Z l @Cp ast.aASEl Z lgl N/A l
N/A l
rERsCNNEt. EXPC31 ES oEscRtPT1cN@
NuneER rvPs
? 71 l 0 l 0 l 0 l@l Zl@l N/A l
IIR$CNN t.' WJU' IES NUMSE l i l l 0 l 0 lR0 lglCEscRtPTICN N/A l
ces Os CR oNACs ro *ActuTv @
8311040005 831027 9
Tws CEscRiPTtCN PDR ADOCK 05000249
/
3 l2l@l N/A S
PDR M
l 8 9 to IS:UE E catPT1CN E I N U@l N/A l
lIIlIlllll l!l$'
4 9 to 68 69
- 80. E ergan (815) 942-2920 x529
!)
o NAME CF PREPARER PHCNE:
yf.
j' MM Q'm
[
g, ') Droeden Nuclear Power St; tion
- O R.R. #1
(
,\\
Morris, Illinois 60450
\\
Telephone 815/942-2920 October 27, 1983 DJS.Ltr #83-1039 James G. Keppler, Regional Administrator
~ Region 111
- U.S. Nuclear Regulatory Comaission 799 Roosevelt Road Glen Ellyn, IL 60137 Reportable Occurrence Report #83-36/03L-0, Docket #050-249 is being submitted to your office In accordance with Dresden Nuclear Power Station Technical Specification' 6.6.B.2.(b), conditions leading to operation in a degraded mode permitted by a. limiting condition for operation or plant shutdown required by a 1imiting condition for operatlon.
M D.. Scott Station Superintendent Dresden Nuclear Power Station l-DJS/kJ1 Enclosure cc: Director of Inspection & Enforcement Director of Management Information & Program Control U.S. NRC, Document Management Branch File /NRC U
6 J
@/ cmm::nw=lth Edisen
,.'a DEVIATION REPORT
)C V";No 12.
- 3 33 -
72 STA UNIT YEAR NO.
P ART 1 l-TITLE OF,Dt.eATION OCCURREO 9/30/83 2314 U-3 APRM Gains Greater Than 1.03 cart rivr SYSTEM AFFECTED 0700 PLANT STATUS AT TIME O/ EVENT TESTING Run 428 0
MOCE
, p,a gy,7 3
, togggy,g3 y
CESCRIPTION OF EVENT g
was 1.153, APRM #3's gain was 1.122, APRM #4's gain was 1.102 and APRM #5's gain was 1.156.
Since the unit was coming down for the refueling outage, action B from Table 3 1.1 of the Tech Spec was followed by reducing power level to IRM range and olacina mode switch in the startup/ hot standby position within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.
10 CFR50.72 NRC RED PHONE C
NOTIFICATION MADE YES NO EOUIPMENT FAILURE N/A OYES O NO
.ORx ReOuEsT NO.
aEsPcNsietE suPERvisO, Gary L. N G IMM g,rg P ART 2 l OPER ATI NG ENGINEER'S COMMENTS The unit was placed in a condition where the APRM's were not required. The APRM gains will be adjusted, as required, prior to the unit startup after the current refueling outage.
O EVENT OF PUBLIC I N TE R E ST O 24* HOUR NRC NOTIFICATION REO'D O TECH. SPEC. VIOLATION TELEPH REGION III DATE TIME O NON REPORTABLE OCCURRENCE TELEGM/TELECOPy N/A O 14 OAY REPORTABLE /T.S.
REGION ll1 DATE TIME G 30 DAY REPORTAstE/T.S 6.6. B. 2.b CECO CORPOR ATE NOTIFIC ATION MADE O ANNUAL /SPECL REPORT REQ'O IF ABOVE NOTIFICATION IS PER IOCFR21 A.I.R.
] 5-DAY WRITTEN REPORT REC'D PER 10CFR21
,83-36/03L-0 Telecopy L.E.R.
gg Dennis P. Galle 10/20/83 1359 CECO CORPORATE CFFICE9 DATE TIME PRELIMINARY REPORT T.A. Ciesta 10/20/83 COMPLETED AND REVIEnED WMING ENGINEER DATE E E Y T T ON R c2e L,
iOkA 3
a
[
g[
[ L7 RESOLUTION APPROVED AND 1
AUTHORIZEO FOR OISTRIBUTION
. STATl 5
INTENDENT DATE I e6 5174 (F04w 15 52-1) 10-81