ML042940191
| ML042940191 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 02/26/2002 |
| From: | Siemaszko A - No Known Affiliation |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| FOIA/PA-2003-0187 02-00846 | |
| Download: ML042940191 (6) | |
Text
NOP-LP-2001.01 CONDITION REPORT CR Number TTLE:E MORE BORON ON HEAD THAN EXPECTED l02-00846 DISCOVERY DATE TIME EVENT DATE TIME SYSTEM I ASSET#
2/2612002 1300 2/26102 1300 062-01 T1*RC EQUIPMENT DESCRIPTION Reactor vessel head DESCRIPTION OF CONDMON and PROBABLE CAUSE (if known) Summarize any attachments. Identify what, when, where, why, how.
O During performance of the video inspection of the reactor vessel head, more boron than expected R
was found on the top of the head.
G N
A T
SUPV COMMENTS I IMMEDIATE ACTIONS TAKEN (Discuss CORRECTIVE ACTIONS completed, basis for closure.)
I Initiated an Investigation to determine the cause of the unexpected boron.
0 N
QUALITY ORGANIZATION USE ONLY IDENTIFIED BY (Check one)
El Self-Revealed ATTACHMENTS Quality Org. Initiated 3 Yes 0l Individual/Work Group EO Internal Oversight Qualty Org. Follow-up
] Yes
[J No El Supervision/Management E External OversIght
[ ]Yes RI No ORIGINATOR ORGANIZATION DATE SUPERVISOR DATE PHONE EXT.
MCLAUGHLIN, M WC 212612002 MCLAUGHLIN. M 2126/2002 8295 SRO EQUIPMENT EVALUATION IMMEDIATE ORGANI ZATION MODE CHANGE P
REVIEW OPERABLE REQUIRED INVESTIGATION REQUIRED NOTIFIED RESTRAINT L
2 Yes O No
] Yes O No O NJA O Yes 2 No I Yes l No NIA E Yes l No A
MOEASSO CIATED TECH SPEC NUJMBER(S)
ASBSOCIATED LCO ACTION STATrEMENT(S)
N IN-Wyg Mm IR T
- 2 O
DECLARED REPORTABLE?
One Hour N/A APPLICABLE UNIT(S)
PNOPERABLE (Date/Time) [-Yes RlNo o.ur
>Mr E
N/A lOEvafRequired Other NlA 0UiU OU2
]BothI R
COMMENTS A
Based on cycle 13 RCS leakage being within TS allowable limits, Operable marked "Yes".
T Investigation Into the cause of the boron accumulation is In progress as noted above.
0 N
Current Mode - Unit 1 Power Level - UnIt 1 Current Mode - Unit 2 Power Level - Unit 2 S
6 0
SRO - UNIT 1 SRO -UNIT 2 DATE Cobbledlck. T Patrick, R 2/26t2002 CATEGORY IEVAL ASSIGNED ORGANIZATION DUE DATE R REPORTABLE?
ALCM 41t212002 E
Ol Yes l No E LER No.
0 CRPA TREND CODES Comp Type I ID Resp u REPORTABILfTY REVIEWER I
Process l Actvitvlt Cause Code(s)
(If Cause T or W)
Org A Wolf, G SUPV HDW 0600 001 E&S 0TE 0600 004 RS DATE MRB 0575 T19 M
62 OUTM Y
02127/02 INVESTIGATION OPTIONS CLOSED BY DATE E Generic Impncauons E Part 21 ElMaintRule Elos Evaluaton Page 1 of 1
CORRECTIVE ACTION CR Number:
NOP-LP-2001-05 02-00846 CR Category:
Action Type:
Schedule Type:
CA Number:
CA (K) OTHER (A) Normal Work Management I
Corrective Action Type:
Cause Code:
Resp Org:
(OT) Other l
(NA) NotApplicable LCM R
==
Description:==
I MODE 4 ADMINISTRATIVE RESTRAINT. This CR has been identified as a Mode Restraint by G
the Management Review Board (MRB). Please provide the appropriate documentation to clear the I
Mode Restraint, which may Include an evaluation or work completion documents (e.g. WO N
Completion) by 315102. If the evaluation cannot be completed by this date, the MRB shall approve A
the new date. Notify Quality Programs when the CAF has been completed to remove the CR from T
the Mode Restraint list.
0 R
Compieted By.
Organization:
Date:
Phone:
Attachments:
NOWICKI. K RA 212712002 8590
[ JYes O No If a Refueling Outage Is required, C IR Other Tracking I Corrective Action Due Date:
ACC.
Enter the Refueling Outage number:
0 2R IA-NIA 315/2002 EPT Approval: (Enter Name and Sign)
Section:
Date:
MCLAUGHUN, M LCM 31/32002 QUAL Quality Organization Approval:
Date:
I
Response
M Ultrasonic testing (UT) performed on the #3 Control Rod Drive Mechanism (CRDM) nozzle p
(location G9) revealed Indications of through wall axial flaws In the weld region. CR 02-00891 L
was Issue to document this condition. Response to the CR will evaluate crack size, location and E
other aspects of the failure. Boric acid found on the reactor head did not originate from CRDM M
flanges. This was verified by videotape examination of CRDM flanges performed by FTlSYME on E
2125102 and 2126102. Since all aspects of nozzle cracking will be discussed In CR 02-00891 N
response, this CR 02-00846 Is closed to CR 02-00891.
T I
Corrective Action Implementation Date:
31412002 N
G U Signature Indicates Corrective Action complete:
Completed By:
SIEMASZKO. A Date:
31412002 O
d Signature Indicates verification for SCAQ CRs:
R Implementing Organization Supervisor Date:
G
, Enter Name and Sign:
Implementing Organization Approval:
CUNNINGS, J Date:
31612002 u
Comments:
U E A R LI IF TI Y E R Approval:
Date:
Page 1 of 3
CORRECTIVE ACTION CR Number:
NOP-LP-2001-05 02-00846 CR Category.l Actlon Type:
iSchedule T~ype:
CA Numben.
CA I ( W) ANI REVIEllW
( A) Normal Work Management 2
Corrective Action Type:
Cause Code:
Rssp Org:
0 (OT) Other (NA)
NotAppicable ANI R
==
Description:==
I ANI Review G
N A
T 0
R Completed Br.
Organization:
Date:
Phone:
Attachments:
LANG.T LCM 4111/2002 8116 l
Yes E3No If a Refueling Outage Is required, 0 IR Other Tracking I Corrective Action Due Date:
ACC-Enter the Refueling Outage number:
El 2R 13RFO IiA l
411112002 EPT Approval: (Enter Name and Sign)
Section:
Date:
PECK. G ANI 4/11/2002 QUAL Quality Organization Approval:
Date:
ITwf I
Response
M 02-00846 Reviewed and acceptable to roll over to CR 02-00891 G A Peck ANII P
L E
M E
N T
N Corrective Action Implementation Date:
4M1112002 N
G
,I Signature Indicates Corrective Action complete:
Completed By' PECK, G Date:
4111/2002 O
a Signature Indicates verification for SCAQ CRs:
R Implementing Organization Supervison Date:
G a Enter Name and Sign:
Implementing Organization Approval:
PECK. G Date:
4/11/2002 Q V Comments:
U E A R L I I F T I Y E R
Approval:
Date:
Page 2 of 3
CORRECTIVE ACTION CR Number:
NOP-LP-2001-05 02-00846 CR Category.
Action Type:
Schedule Type:
CA Number.
CA I (J)
ROLL-OVER (A) Normal Work Management 3
Corrective Action Type:
Cause Code:
Resp Org:
O (OT) Other (NA)
Not Applicabie LCM R
==
Description:==
I This CR Is being rolled into CR 02-00891.
G N
A T
0 R
Completed By.
Organization:
Date:
Phone:
Attachments:
NOWICKI. K RA 3115t2002 8590 El Yes Rj No If a Refueling Outage Is required, E IR Other Tracking 1 Corrective Action Due Date:
ACC-Enter the Refueling Outage number.
0 2R A
NIA 411512002 EPT Approval: (Enter Name and Sign)
Section:
Date:
LANG. T LCM 4/1112002 QUAL Quality Organization Approval:
Date:
MlY i
Response
M CAF 4 was created under CR 02-00891 to track this action.
P L
E M
E N
T I
Corrective Action Implementation Date:
3t15/2DW2 N
G It Signature Indicates Corrective Action complete:
Completed By:
NOWICKI. K Date:
3115/2002 O
Ci Signature Indicates verification for SCAQ CRs:
R Implementing Organization Supervisor Date:
G LI Enter Name and Sign:
Implementing Organization Approval:
LANG. T Date:
4/11/2002 V Comments:
U E A R L I I F T I YE R Approval:
Date:
Page 3 of 3
CAUSE ANALYSIS g
CRNumber NOP-LP 2001 03
.02-00846 Category I Eval Code: CA Condition Description and Cause Basis:
.l Hardware I Degraded Condition Resolution Required?
If Yes, select one 8 Repair E1 Rework 0Yes O No o Scrap El Use-As-Is This CR is being rolled into CR 02-00891.
The boric acid on the head is now known to have been primarily deposited by leakage from CRDM nozzles #3, 2, and I (in that order).
The degradation of the Reactor Coolant Presure boundary Is being addressed by the root cause report for CR 02-00891 and associated repairs.
The CR 02400891 root cause report describes the large corroded area (only cladding remaining in an area beside nozzle 3) and loss of structural margin In the pressure boundary.
At this time It is anticipated that the head can be repaired, however, engineering Is In progress and regulatory acceptance Is not certain.
Process Code Trend Codes HDW (If cause Is T or W)
Component Code Activity Code Cause Code Type ID#
Resp Org 0600 Primary 001 Causes of event were n E&S Technical Services 0600 Secondary 004 Mgmt. assessment E&S Technical Services 0575 Tertlary T19 Corrosion M
62 OUTM Outage Management Completed By.
Date:
LANG, T l
411112002 Page 1 of 1
INVESTIGATION
SUMMARY
CR Number:
02-00846 NOP-LP-2001-06 Category I Eval: CA Assigned Organization: LCM Quality Followup Req'd: El Yes SDNo
- 1 Acceptance of the CR Investigation signifies acceptance of the following Items, as applicable
Originator Identification Date 21 Yes El No Corrective Actions (listed below)
(listed below, if any)
(listed below, If any) i Yes El No Cause Analysis LANG. T 4111/2002 El Yes RI No Generic implications El Yes Rl No 10 CFR 21 Decision Checklist Acceptance of Investigation:
Date:
Quallty Approval:
Date:
Baker, E for Rogers 411212002 Closure Comments:
Quality Comments:
CORRECTIVE ACTIONS Resp CA Sched CA Cause Org.
Accept Due Completed Number Type:
Type:
Code:
Codes:
CA Acceptance:
Date:
Date:
Date:
I A
OT NA LCM MCLAUGHLIN, M 313102 31512002 3/412002 2
A OT NA ANI PECK, G 4/11102 411112002 411112002 3
A OT NA LCM LANG. T 4/11102 4115/2002 311512002 Page 1 of 1