ML042940227
| ML042940227 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 07/02/2002 |
| From: | - No Known Affiliation |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| FOIA/PA-2003-0187 02-02943 | |
| Download: ML042940227 (2) | |
Text
NOP.LP.2001-01 CONiDITION REPORT CR Number TITLE: CONTAINMiElT AIR COOLEREORtIC AC/O COQROSION
.02-02943 DISC0VERY OATJE TlltE
" EVENEtTATE I TIME SYSTEM I ASSET#
722002 N/A 7/2r2002 I
N/A 011-06 E37-1.2,3 EQUIPMENT DESCRIPTION Conlahiment Air Coolers DESCRIPTION OF CONIDTIOfand PROBABLE CAUSE (If known) Summarize anyattichmrunt.
IdmntiffywhaL whon, where, why, how.
O 13 condition reports have been written to Identify boric acid corrrosion of the containment air R
coolers. The CRs are as follows: 02-01363, 02-01748. 02-02165. 02-02172. 02-02179, 02-02194.
02-02269. 02-02294. 02-02315, 02-02330, 02-02394. 02-02409,02-02414. This number of condition reports written against the same equipment caused by the same degradation mechanism G
points to a significant issue. Thorofore, a significant condition report is warrented. A comprehensive N
action plan is being developed to address the corrosion of the containment air coolers.
N T
SUPV COMMENTS I IMMEDIATE ACTIONS TAK(EN (Discuts CORRECTIVE ACTIONS COmpIlated, basil (or (aocure.)
I No immediate actions are necessary. The system has been declared Inoperable and is not currently O
operating. The above listed condition reports will be closed to this significant condition report. A N
category of 'fix' was chosen because the degradation mechanism is due to boric acid corrosion and a comprehensive root cause is being performed to address this issue.
aUALITY ORGANIZATION USE ONLY I IDENTIFIED BY (Check one) 3 Self-Revealed ATTACHMENTS Quacty Org. Initiated 0
Ye t IndividunW/ork Group a
Iniernal Oveasighl Quaty Org. Follow-up 0 yet C' NO O SupervLsionflanagenenil 0
External Oversight 0 Yet 0 No ORIGINATOR ORGANIZATION DATE I SUPERVISOR DATE PHONE EXT.
MCLAUGHU N, M l
LM 7=/0D2 MCL&UGHLI.M702 82 SRO EQUIPMET EVALUATIONY I IMMEDIATE INVESTlGATIONJ ORCANIZATION MODE CHANGE P
REVIEW OPERA.LE REQUIRED REQUIRED NOTIFIED RESTRAJNT L
F Y N
Y. WjNo WA QY.
2 No I s
0 gY Yi ONo A
MODE ASSOCIATED TECH SPEC NUM8ER(S)
ASSOCIATED LCO ACTION STATEMENT(S)
N T
.02 o
DECLARED REPORTABLE?
One Hour NrA APPUCABLE UNIT(S)
P NOPERABLE (OVA I Time); 0ye, ENC I
7/2102 1255 lOEvel Requkd Other N/A 0
11 U2 C1 Both R
COMMENTS A
This Condition Report wllt be tracked as a Mode 3 Restraint against T.S. 3.6.2.2 (Containment Air T
Cooling) pending resolution of this issue per NG-EN-00324, Boric Acid Corrosion Control.
I 0
N Cunrrnt Mode - UnIt ¶ Powet Leyci -Unit t Currant Mode
- UnIt 2 Power Level - Unit 2 S
REF L
NIA NIA SRO - UNIT I SRO - UNIT 2 DATE Horvath. E Myers. LD 7/2t2002 Page 5 of 44 JUL-05-200-7 05:57 410,es80691 IJ-52 05541686197?% P. 02
.2J.
J e
,'4 d'l t iU b +/-
IE D=-N=.F-P.IC PAGE-OS NOP-LP-0 0141 CONDITION REPORT CR Number TITLE: CONTAINMENTAIR COOLER BORIC ACID CORROSION 02-02943 ECORY I EVAL ASSIGNED ORGANIZATION l OUE DATE REPORrAnLE?_
OCl LILERNo.
CRPA Comp Type / ID Rasp REPORTABILITY REVIEWER J
PrpcqtOe I Ac;vIty I Caune Cod.(s)
(I1 Caute T or W)
Org I A SUPV HOW 0575 T
/
0575 R-
-AT MRE 0S75 l
INVESTIGATION OPTIONS CLOSED BY DATE C G ine.c Lnmpltron C EPt 21 O0J.W.Ruls C]Or ESano
-I Pago a or 44