ML20128G245
| ML20128G245 | |
| Person / Time | |
|---|---|
| Site: | Waterford  |
| Issue date: | 10/03/1996 |
| From: | James Fisicaro ENTERGY OPERATIONS, INC. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| W3F1-96-0177, W3F1-96-177, NUDOCS 9610080404 | |
| Download: ML20128G245 (21) | |
Text
_. _ .. - __ __. .
Entirgy Oper:tions,Inc.
Kinona. LA 70066 Tel 504 739 6242 ames J. Fisicaro 7/ai$$$'3'**
W3F1-96-0177 A4.05 Pri October 3,1996 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555
Subject:
Waterford 3 SES l Docket No. 50-382 License No. NPF-38 I Status of Actions to Address Fasteners Discrepancies identified on Motor Operated Valves Gentlemen:
The purpose of this letter is to provide the NRC with a status of Waterford 3's actions to address a recent concern involving the discovery of suspect / missing fasteners on safety-related motor operated valves (MOVs), as requested by NRC Region IV personnel during a conference call on October 2,1996. On October 1,1996, Waterford 3 personnel initiated a walkdown of safety-related MOVs to inspect critical components for the correct material fasteners. This walkdown was a follow-up action from Condition Report (CR) 96-1455, which identified an apparent incorrect material for the limit switch cover mounting cap screws and washers for four safety-related MOVs on September 19,1996. The material of the cap screws was originally questioned by a visiting NRC inspector during a plant walkdown. The limit switch cover screws were determined to be non-critical components for the valves and did not present an operability concern. Waterford 3 engineering personnel pursued the question further and determined that an inspection of critical MOV fasteners was warranted to determine if a generic issue of fastener control exists. The walkdown initiated on October 1,1996 revealed suspect or missing fasteners on three safety-related MOVs. The following immediate actions were taken:
. CR 96-1528 was initiated to implement the Waterford 3 corrective action process.
. The subject valves were conservatively declared out of service, and the appropriate Technical Specification Action was entered. , ' Li 9610080404 961003 PDR ADOCK 05000382 P pyg
Status of Actions to Address Fasteners Discrepancies identified on Motor Operated Valves ,
Page 2 October 3,1996 .
. Parallel efforts were taken to continue the MOV inspections, identify replacement -
parts for the suspect / missing fasteners, and evaluate the effect of the discovered ,
discrepancies on operability of the valves. It should be noted that, based on i preliminary review, none of the identified discrepancies affected operability of the ,
valves. ;
. A Root Cause Analysis Team has been formed for CR-96-1528. This cross-discipline team is responsible for determining the root cause and necessary ,
corrective actions for the specific issue of fastener controls with respect to MOVs -
as well as determining any generic implications to ensure the issue is fully bounded and resolved. ,
. The details of this issue were discussed with each of the Maintenance disciplines and Construction personnel on October 2,1996 to heighten awareness in the area of fastener controls. Waterford 3 Maintenance personnel currently at l Arkansas Nuclear One (ANO) for outage support were also contacted and briefed i on the issue. 1 e Licensing and plant management personnel at the other Entergy nuclear sites, namely ANO, Grand Gulf, and River Bend, were notified of the MOV fastener discrepancies identified at Waterford 3.
On October 2,1996, a conference call was held between Waterford 3 personnel and NRC Region IV personnel to discuss the status of the identified discrepancies and associated generic concerns. During the call, the NRC expressed several concerns with regard to the issue of fastener control at Waterford 3. A status of the immediate actions taken and current planned actions was discussed during the conference call.
The NRC requested that Waterford 3 document the action plan to address this issue in a letter to the staff. Attachment 1 provides a summary of the current action plan requested, which includes actions that have been completed as well as those in progress and planned. It is important to note that the results of certain actions listed may warrant further actions to be taken as deemed necessary until the issue is fully bounded and resolved.
Status of Actions to Address Fasteners Discrepancies identified on Motor Operated Valves W3F1-96-0177 Page 3 October 3,1996 Waterford 3 is concerned with the number of discrepancies found on fasteners associated with motor operated valves. As a result, Waterford 3 is taking an aggressive and comprehensive approach to addressing the concerns as outlined in the attached action plan. These actions, along with any additional actions deemed necessary through further investigation, will ensure the question of fastener / parts control at Waterford 3 is bounded and resolved completely. We will continue to keep you informed of our progress on this issue.
If you have any questions concerning this response, please contact me at (504) 739-6242.
Very truly yours,
,95c.~
J.J. Fisicaro Director Nuclear Safety JJF/DFUtjs Attachments cc: L.J. Callan (NRC Region IV), C.P. Patel (NRC-NRR),
R.B. McGehee, N.S. Reynolds, NRC Resident inspectors Office I
k
ATTACHMENT 1 Current Action Plan For CR-96-1528 The following is a current list of corrective actions to address the condition identified in CR-96-1528 related to suspect / missing fasteners on safety-related MOVs. A cross-discipline Root Cause Analysis Team has been formed with the purpose of determining the root cause and necessary corrective actions for the specific issue of fastener controls with respect to MOVs as well as determining any generic implications to ensure the issue is fully bounded and resolved.
Specific Actions to Address MOVs A walkdown and externalinspection of all safety-related and Category 1 (GL 89-10) non-safety-related MOVs at Waterford 3 has been completed (78 total). Attachment 2 provides a list of these valves, the type of discrepancies identified and the required actions. A preliminary review has indicated that the operability of these valves were not affected by the identified discrepancies.
It is important to note that the MOV inspection distinguished between carbon steel and stainless steel fasteners. The stainless steel fasteners were considered suspect in that they may not meet the appropriate SAE r,rade material strength requirements. With the exception of valves SI-415 A&B, allidentified stainless steel fasteners were replaced with the appropriate SAE Grade carbon steel fasteners.
The SI-415 A&B fasteners replacements are scheduled to arrive on site on October 7,1996. A number of carbon steel fasteners were also replaced. A sample of the ;
stainless and carbon steel fasteners which were removed are being analyzed to I determine if they meet the appropriate SAE Grade material strength requirements. l The results of this analysis will help to determine the scope of further sampling of installed fasteners.
Inspection of the internal fasteners for a sampling of MOVs will be performed. A review is being performed to determine the scope, function and appropriate sample size of internal MOV fasteners. This review will be completed by October 10,1996.
Actions to Address and Bound Generic Question of Fastener / Parts Control The details of the this issue were discussed with each of the Maintenance disciplines and Construction personnel on October 2,1996 to heighten awareness in the area of l
fastener controls. Waterford 3 Maintenance personnel currently at Arkansas Nuclear '
One (ANO) for outage support were also contacted and briefed on the issue.
1 i ! censing and plant management personnel at the other Entergy nuclear sites,
- namely ANO, Grand Gulf, and River Bend, were notified of the MOV discrepancies identified at Waterford 3. Waterford 3 will continue to communicate with the other sites in resolving the concerns.
4 The Quality Assurance (QA) Department interviewed Electrical Maintenance, Mechanical Maintenance, I&C Maintenance, Construction, and Planning and Scheduling personnel in an attempt to identify the rwrmal practices used by the craft personnel and the expectations given with respect to the replacement of fasteners.
These interviews were performed anonymously. A brief summary of the interviews is
, included in Attachment 3. These results will be evaluated by the Root Cause Analysis Team to determine any necessary corrective actions with regard to expectations on worker practices.
Per the responses to the interviews discussed above, two components were identified as potentially having incorrect fasteners, namely the mounting screws for valve CC-135A pressure switch, and the motor termination cover bolts on LPSI i Pump B. These components are being promptly investigated.
a A review of the work history for a number of the MOVs listed in Attachment 2 is being 4
performed in an attempt to identify when the discrepancies may have been
)'
introduced. This review may also help to bound the problem from a personnel ,
standpoint. The majority of maintenance performed on MOVs is by the electrical l maintenance discipline. If the review identifies that the discrepancies were l introduced by certain plant personnel, or contractors, other work performed by the individuals will be reviewed for quality.
1 A review of other types of components which fall under the Electrical Maintenance l discipline is being performed to determine if they are susceptible to fastener control problems. It should be noted that reactor trip breakers do not appear susceptible due to the fact that they are sent off-site for rnaintenance and repair.
A 10% sample of. safety-related air operated valves (AOVs) has been selected for external fastenerinspection. This sampling includes 24 safety-related AOVs selected based on Probabilistic Risk Assessment importance. A walkdown of these valves to identify fastener inconsistencies or missing fastenere All be completed by October 4,1996. The results of this walkdown will determine if tne scope of AOVs needs to be expanded, and may help to bound the issue from an equipment / discipline standpoint since most AOV maintenance is performed by the mechanical and l&C disciplines. !
To broaden the review beyond safety-related valve actuators, an inspection of a !
sampling of accessible, critical Emergency Diesel Generator fasteners will be performed, with emphasis placed on fasteners that are frequently removed and replaced during routine maintenance (electrical, mechanical, and I&C). The as-found field-installed fasteners will be compared to appropriate configuration-control documentation to ensure the as-found are the correct fasteners. The engine
l manufacturer will also be consulted to ensure correct fasteners are installed. The inspection will be completed by October 18,1996. This action may help to bound the issue from an equipment standpoint.
Condition Report database searches as well as Condition Identification (Cl) and Work Authorization (WA) database searches have been performed to look for past prob; ems involving incorrect / missing fasteners and materials controls problems which may have been identified and documented. The results of these searches are being reviewed for applicability to the current issue and will be included in the efforts of the Root Cause Analysis Team to determine further necessary corrective actions.
These searches may also help in bounding the problem.
It was discovered that some of the suspect / missing fasteners identified did not have warehouse stock numbers cross-referenced to part numt,ers. Typically these parts can be found by cross-referencing part descriptions and specifications. QA will perform a process survey, which will include a review of work packages, to ensure spare parts are being requested and issued in accordance with procedural requirements and that the current procedures ensure parts are being replaced with correct spares. The expected completion date of this process survey is October 31, i 1996. l l
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ATTACHMENT 2 I i
MOV FASTENERS INSPECTION RESULTS i
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Motor Operated Valve Fasteners 034kt-96 - ,
COMPONENT PROBLEM DESCRIPTION WORK REQUIRED PRE VOTES POST VOTES OPERABILITY BAM-113A ONE MOTOR MOUNTING NlTT IS STAINLESS. ALL OPERATIONS TO STROKE VALVE NO NO EOS STUDS ARE CARBON STEEL. FOR RETEST ENTERED COMPLETE: 10/3N6 AT 0820 Yes BAM-113B MISSING 4 WASilERS FOR MOTOR MOUNTING INSTALL LOCK WASilERS AT NO NO NO
- - - - - - FASTENERS NEXT SCliEDULED COMPLETE: MAINTENANCE ON MOV.
MISSING 8 WASliERS FOR LIMIT SWITCli llOUSING N? COVER FASTENERS BAM-133 MISSING I TOP llOUSING COVER FASTENER INSTALLED Tile MISSING TOP YES YES EOS 10/IN6
- - - - - IlOUSING COVER FASTENER. 1115 EXITED COMPLETE: EXITED EOS 10/3N6 AT 0815 10/3N6 0815 WORK COMPLETED Yes CA R-201 A NO DEFICIENCY FOUND N/A NO NO NO COMPLETE:
Yes CAR-201 B NO DEFICIENCY FOUND N/A NO NO NO COMPLETE:
Yes CAR-204A MISSING 4 LOCK WASIIERS ON LIMIT SWITCII INSTALL LOCK WASIIERS AT NO NO NO
- IlOUSING COVER NEXT SCIIEDULED COMPLETE: MAINTENANCE ON MOV.
No I
Motor Operated Valve Fasteners 03-Oct-96 - .
COMPONENT PROBLEM DESCRIPTION WORK REQUIRED PRE VOTES POST VOTES OPERABILITY CA R-204H MISSING 4 LOCK WASilERS FOR LIMIT SWITCil INSTALL LOCK WASIIERS AT NO NO NO
- - ---- - --- ; ilOUSING COVER FASTENERS NEXT SCilEDULED COMPLETE:l MAINTENANCE ON MOV No
]
CV C-183 MISSING 6 LOCK WASIIERS FOR LIMIT SWITCil INSTALL LOCK WASIIERS AT NO NO NO
- --- - --- liOUSING COVER NEXT SCllEDULED pOMPLETE:
C MAINTENANCE ON MOV.
TWO NUTS ARE 13RONZE FOR LIMIT SWITCllliOUSING No COVER CVC-507 MISSING I WASilER FOR MOTOR MOUlTTING INSTALL MISSING WASilERS AT NO NO NO FASTENER, MISSING 4 WASiiERS FOR YOKE NEXT SCllEDULED COMPLETE: MAINTENANCE MISSING 8 WASIIERS FOR LIMIT SWITCll llOUSING No COVER FASTENERS.
t IIVC-201 A MISSING 4 LOCK WASIERS ON LIMIT SWITCII INSTALL LOCK WASIIERS AT NO NO NO IIOUSING COVER NEXT SCiiEDULED COMPLETE: MAINTENANCE ON MOV.
No llVC-201B 2 LOCK WASilERS MISSING ON MOTOR MOUNTING INSTALL LOCK WASIIERS AT NO NO NO FASTENERS NEXT SCilEDULED COMPLETE: MAINTENANCE ON MOV.
MISSING 4 LOCK WASilERS ON LIMIT SWITCil No llOUSING COVER IIVC-202A MISSING 4 LOCK WASIIERS ON LIMIT SWITCII INSTALL LOCK WASIIERS AT NO NO NO IlOUSING COVER NEXT SCIIEDULED COMPLETE: MAINTliNANCE ON MOV.
No 2
Motor Operated Valve Fasteners OD-Oct-96 COMPONENT PROBLEM DESCRIPTION WORK REQUIRED PRE VOTES POST VOTES OPERABILITY MISSING 2 LOCK WASIIERS FOR LIMIT SWITCil INSTALL LOCK WASIIERS AT NO NO NO IIVC-202B IlOUSING COVER FASTENERS NEXT SCIIEDULED COMPLETE: MAINTENANCE ON MOV.
No MISSING 4 LOCK WASIIERS FOR LIMIT SWITCil INSTALL LOCK WASIIERS AT NO NO NO IIVC-203A IlOUSING COVER FASTENERS NEXT SCllEDULED COMPLETE: MAINTENANCE ON MOV No IIVC-203B NO DEFICIENCY FOUND N/A NO NO NO COMPLETE:
Yes llVC-204A I LOCK WASIIER ON LIMIT SWITCil IIOSING COVER REPLACE LOCK WASIIER AT NO NO NO
--- LARGER TIIAN Tile OTIIER 3 NEXT SCIIEDULED COMPLETE: MAINTENANCE ON MOV.
No ilVC-204B NO DEFICIENCY FOUND N/A NO NO NO COMPLETE:
Yes 11VR-304A MISSING 4 LOCK WASIIERS ON LIMIT SWITCil INSTALL LOCK WASIIERS AT NO NO NO
IIOUSING COVER NEXT SCIIEDULED COMPLETE: MAINTENANCE ON MOV.
3
Motor Operated Valve Fasteners 03-Oct-96 COMPONENT PROBLEM DESCRIPTION WORK REQUIRED PRE VOTES POST VOTES OPERABILITY IIVR-30411 MISSING 4 LOCK WASIIERS FOR LIMIT SWITCli INSTALL LOCK WASIIERS AT NO NO NO
- - - IIOUSING FASTENERS NEXT SCllEDULED COMPLETE: MAINTENANCE ON MOV.
No IIVR-313A MISSING 3 LOCK WASIIERS FOR LIMIT SWITCII INSTALL LOCK WASIIERS AT NO NO NO IlOUSING COVER FASTENERS NEXT SCllEDULED
' COMPLETE: MAINTENANCE ON MOV.
No IIVR-313B MISSING 3 LOCK WASliERS ON LIMIT SWITCII INSTALL LOCK WASIIERS AT NO NO NO IlOUSING COVER FASTENERS NEXT SCllEDULED COMPLETE: MAINTENANCE ON MOV.
No AIS-119A LOCK WASIIERS (4) MISSING FOR MOTOR MOUNTING REPLACE WASifERS AT NEXT NO NO NO
- - FASTENERS MAINTENANCE OUTAGE MISSING 4 LOCK WASIIERS ON YOKE MOUNTING No FASTENERS AND 8 LOCK WASIIFRS FOR LIMIT MS-119B MISSING 2 WASilERS FOR TOP IIOUS:NG COVER, INSTALL LOCK WASHERS AT NO NO NO MISSING 3 WASIIERS FOR MOTOR MOUNTING NEXT SCHEDULED COMPLETE *. MAINTENANCE ON MOV.
MISSING 4 WASifERS FOR YOKE MOUNTING No FASTENERS AND 8 WASHERS FOR LIMIT SWITCII MS-120A MISSING I LOCK WASIIER FOR TOP If0USING COVER INSTALL WASIIERS AT NEXT NO NO NO
-- FASTENER SCIIEDULED MAINTENANCE O.Mm:
MISSING 4 LOCK WASIIERS FOR YOKE MOUNTING No FASTENERS AND 8 LOCKWASIIERS FOR LIMIT 4
Motor Operated Valve Fasteners 03-Oct-96 -
COMPONENT PROBLEM DESCRIPTION WORK REQUIRED PRE VOTES POSTVOTES OPERABILITY LIS-120H MISSING 4 YOKE MOUNTING WASIIERS FOR INSTALL WASIIERS AT NEXT NO NO NO
FASTENERS SCIIEDULED MAINTENANCE COMPLETE:
No MS-401 A MISSING I LOCK WASilER ON TOP IIOUSING COVER INSTALL WASilERS AT NEXT NO NO NO
--- ----- - - - AND I LOCK WASIIER FOR MOTOR MOUNTING SCIIEDULED MAINTENANCE MISSING 4 LOCK WASilERS FOR YOKE MOUNTING No FASTENERS AND 8 LIMIT SWITCH llOUSING COVER MS-401 B NO DEFICIENCY FOUND N/A NO NO NO COMPLETE:
Yes MS-407 MISSING 4 LOCK WASHERS ON YOKE MOUNTING INSTALL WASiiERS AT NEXT NO NO NO FASTENERS AND 4 LOCK WASIIERS FOR LIMIT SCHEDULED MAINT.
COMPLETE:
No MS-408 LOCK WASHERS MISSING FROM YOKE MOUNTING REPLACE WASHERS AT NEXT NO NO NO FASTENERS SCHEDULED MAINTENANCE LOCK WASIIERS MISSING FROM LIMIT SWITCH No llOUSING COVER FASTENERS.
MS-416 NO DEFICIENCY FOUND N/A NO NO NO COMPLETE:
No 5
Motor Operated Valve Fasteners 03-Oct-96 COMPONENT PROBLEM DESCRIPTION WORK REQUIRED PRE VOTES POST VO l'ES OPERABILITY MISSING 8 LIMIT SWITCII IlOUSING COVER WASIIERS INSTALL WASIIERS AT NEXT NO NO NO SHV-101 A
-- - -- SCIIEDULED MAINTENANCE COMPLETE:
No MISSING 8 LIMIT SWITC11 IIOUSING COVER WASIIERS INSTALL WASIIERS AT NEXT NO NO NO SU V-101B
-- SCIEDULED MAINTENANCE COMPLETE:
No SHV-110A MISSING 6 LIMIT SWiTCil llOUSING COVER LOCK INSTALL WASIERS AT NEXT NO NO NO WASIIERS SCIIEDULED MAINT.
COMPl.ETE:
No SUV-110B MISSING 8 LIMIT SWITCII IIOUSING COVER LOCK INSTALL LOCK WASIIERS AT NO NO NO
-- -- - WASIERS NEXT SCilEDULED COMPLETE: MAINTENANCE ON MOV.
No SBV-113A MISSING 8 LIMIT SWITCII flOUSING COVER LOCK INSTALL LOCK WAS11ERS AT NO NO NO WASIERS NEXT SCIEDULED COMPLETE: MAINTENANCE ON MOV.
No SBV-113B MISSING 8 LIMIT SWITCil IIOUSING COVER LOCK INSTALLIOCK WASIIERS AT NO NO NO WASIERS NEXT SCIEDULED COMPLETE: MAINTENANCE ON MOV.
No 6
Motor Operated Valve Fasteners 03-Oct-96 COMPONENT PROBLEM DESCRIPTION WORK REQUIRED PRE VOTES POST VOTES OPERABILITY SBV-114A MISSING 7 LIMIT SWITCil IIOUSING COVER LOCK INSTALL LOCK WASIIERS AT NO NO NO
~- ------
WASIIERS NEXT SCllEDULED COMPLETE: MAINTENANCE ON MOV.
No SBV-114B MISSING 8 LIMIT SWITCilIIOUSING COVEF LOCK INSTALL LOCK WASilER3 AT NO NO NO
- - ' - - - WASIIERS NEXT SCIIEDULED COMPLETE: MAINTENANCE ON MOV.
No SI-120A MISSING I WASIIER FOR MOTOR MOUNTING INSTALL LOCK WASIIERS AT NO NO NO
-- FASTENER NEXT SCIIEDULED COMPLETE: MAINTENANCE ON MOV.
MISSING 8 LOCK WASIIERS FOR LIMIT SWITCil No IIOUSING COVER FASTENERS SI-120B TOP llOUSING COVER SVREWS IIAVE MIXED REPLACED ALL llOUSING TOP YES YES EOS
-- STAINLESS STEEL AND CARBON STEEL FASTENERS. COVER AND MOTOR MOUNTING ENTERED COMPLETE: FASTENERS. ENTERED EOS AT 10/1/96 AT ALL MOTOR MOUNTS ARE STAINLESS STEEL 10/1/96 AT 1115. READY FOR Ii15 RETEST SI-121 A MISSING 4 YOKE 1%vUNTING FASTENER WASilERS INSTALL LOCK WASIIERS AT NO NO NO NEXT SCIIEDULED COMPLETE: MAINTENANCE ON MOV.
MISSING 8 LIMIT SWITCil HOUSING COVER WASIIERS No SI-121 B TOP IIOUSING COVER SCREWS liAVE ALL STAINLESS REPLACED ALL 110USING TOP YES YES EOS
S' EEL MATERIAL COVER AND MOTOR MOUNTING ENTERED COMPLETE: FASTENERS. EOS ENTERED 10/1/96 AT ALL MOTOR MOUNTINGS APE STAINLESS STEEL AND 10/1/96 AT Ii15 READY FOR II15 Y'8 BOLTS VERSUS STUD / NUTS RETEST 7
Motor Operated Valve Fasteners 03-Oct-96 * -
COMPONENT PROBLEM DESCRIPTION WORK REQUIRED PRE VOTES POST VOTFS OPERABILITY SI-125A MISSING ALL LOCK WASIIERS FOR LIMIT SWITCil INSTALL LOCK WASilERS AT NONE NONE NO IlOUSING COVER FASTENERS. NEXT SCliEDULED I LOCK WASIIER SCC NEEDS TO BE REPLACED.
No SI-12511 MISSING I MOTOR MOUNTING STUD AND NUT INSTALL ONE MOTOR MOUNTING NONE NONE EOS STUD AND NUT. EOS ENTERED ENTERED COMPLETE: AT 10/2/96 AT 1700 EXITED 10/2/96 10/2/96 AT ya AT 2325 1700 EXITED SI-135A MISSING LIMIT SWITCil llOUSING COVER LOCK INSTALL LOCK WASIIERS AT NO NO NO WASilERS NEXT SCIIEDULED COMPLETE: MAINTENANCE ON MOV.
No SI-13511 MISSING LIMIT SWITCII IIOUSING COVER LOCK INSTALL LOCK WASIIERS AT NO NO NO
- -- WASIIERS NEXT SCllEDULED COMPLETE: MAINTENANCE ON MOV.
No SI-138A MISSING 8 WASIIERS FOR YOKE MOUNTING INSTALL NEW PARTS AT NEXT NO NO NO FASTENERS AND 3 LOCK WASIIERS FOR LIMIT SCIIEDULED MAINTENANCE ON 3 FASTENERS FOR LIMIT SWITCII IIOUSING COVER No ARE NOT MAGNETIC SI-138B 10 BRASS BOLTS NON MAGNETIC FOUND ON LIMIT REPLACE IF FOUND TO BE NOT NO NO NO SWITCilIIOUSING COVER ACCElTABLE AT NEXT COMPLETE: SCllEDULED MAINTENANCE 8
Motor Operated Valve Fasteners 034ki-96 COMPONENT PROBLEM DESCRIPTION WORK REQUIRED PRE VOTES POST VOTES OPERABILITY MISSING 1 WASilER FOR MOTOR MOUNrlNG INSTALL LOCK WASHERS AT NO NO NO SI-139A
-- FASTENERS. MISSING 8 WASIIERS FOR YOKE NEXT SCHEDULED MAINTENANCE ON MOV.
COMPLETE:
9 FASTENERS ARE NOT MAGNETIC No MISSING 8 WASilERS FOR YOKE MOUNTING INSTALL WASilERS AND NO NO NO SI-139B
- - - FASTENERS REPLACE BRASS BOLTS AT NEXT COMPLETE: SCilEDULED MAINTENANCE 10 BRASS BOLTS NON-MAGNETIC ON LIMIT SWITCil OUTAGE ON VALVOP No llOUSING COVER ALL LOCK WASIIERS MISSING FOR LIMIT SWITCil INSTALL LOCK WASiiERS AT NO NO NO SI-219A IlOUSING COVER FASTENERS. NEXT SCilEDULED COMPLETE: MAINTENANCE ON MOV No SI-219B MISSING 2 LOCK WASilERS ON TOP HOUSING COVER INSTALL LOCK WASHERS AT NO NO NO
- - - NEXT SCHEDULED COM PLETE.
- MAINTENANCE ON MOV.
MISSING 8 LOCK WASHERS FOR LIMIT SWITCll No 1 HOUSING COVER FASTENERS SI-225A MISSING LOCK WASIIERS FOR (1) TOP IIOUSING INSTALL WASHERS AT NEXT NO NO NO COVER BOLT, (4) WASHERS FOR YOKE MOUNTING MAINTENANCE OUTAGE ON MOV COMPLETE:
No SI425B 1 WASHER MISSING FOR TOP IIOUSING COVER INSTALL WASIERS AT NEXT NO NO NO FASTENER,4 WASiiERS MISSING FOR YOKE SCIIEDULED MAINTENANCE OMME:
MISSING 8 WASIIERS FOR LIMIT SWITCil llOUSING No COVER FASTENERS 9
Motor Operated Valve Fasteners 03-Oct-96 COMPONENT PROBLEM DESCRIPTION WORK REQUIRED PRE VOTES POST VOTES OPERABILITY MISSING LOCK WASIIERS FOR MOTOR MOUNTING INSTALLIIARDWARE AT NEXT NO NO NO SI-226A FASTENERS AND YOKE MOUNTING FASTENERS AND SCIEDULED MAINTENANCE I NUT IS ST STL. ON LIMIT SWITCil llOUSING COVER No MISSING 1 TOP IIOUSING COVER LOCK WASIIER AND INSTALL WASilERS AT NEXT NO NO NO SI-22611 4 YOKE MOUNTING FASTENER WASit?RS SCllEDULED MAINTENANCE MISSING 8 LOCK WASIIERS FOR LIMIT SWITCII No !!OUSING COVER MISSING I LOCK WASiiER ON TOP IIOUSING COVER INSTALL IIARDWARE AT NEXT NO NO NO SI-227A
- - - - SCIEDULED MAINTENANCE "I
MISSING ALL LOCK WASIIERS FOR MOTOR No MOUNTING, YOKE MOUNTING AND LIMIT SWITCII SI-227B 3 LOCK WASilERS MISSING FOR MOTOR MOUNTING INSTALL IIARDWARE AT NEXT NO NO NO FASTENEPS. MISSING 4 YOKE MOUNTING FASTENER SCIEDULED MAINTENANCE 3 FLAT WASilERS INSTALLED ON TOP llOUSING No COVER FASTENERS SI-228A MISSING 2 LOCK WASHERS ON TO? IlOUSING COVER INSTALL IIARDWARE AT NEXT NO NO NO SCIEDULED MAINTENANCE MISSING 4 LOCK WASilERS ON YOKE MOUNTING No FAS'mNERS AND 8 WASIIERS FOR LIMIT SWITCli SI-228B MISSINC i LOCK WASIIER FOR MOTOR MOUNTING INSTALLIIARDWARE AT NEXT NO NO NO
- - FASTENER SCilEDULED MAINTENANCE COMPLETE:
MISSING LOCK WASIIERS FOR ALL YOKE MOUNTING No FASTENERS AND 4 LIMIT SWITCIIIlOUSING COVER 10
Motor Operated Valve Fasteners 03-Oct-96 .
COMPONENT PROBLEM DESCRIPTION WORK REQUIRED PRE VOTES POST VOTES OPERABILITY SI-331 A NO DEFICIENCY FOUND NONE. NO NO NO COMPLETE:
No SI-33111 LIMIT SWITCil llOUSING COVER II AS 7 ST STL. BOLTS REPLACE BOLTS AND INSTALL NO NO NO
-- - - - - LOCKWASIIERS.
LIMIT SWITCil llOUSING COVER FASTENERS NEED No LOCKWASilERS l
SI-332A LIMIT SWITCIIIIOUSING COVER NEEDS INSTALL LOCK WASHERS AT NO NO NO
- LOCKWASIIERS NEXT SCllEDULED COMPLETE: MAINTENANCE ON MOV No SI-332B I STAINLESS STEEL SPRING CAP BOLT. WORK PLANNED. NONE NONE NO COMPLETE:
Yes SI-401 A NO DEFICIENCY FOUND N/A NO NO NO COMPLET Yes l _
SI-401B LOCK WASIERS MISSING FOR LIMIT SWITCli INSTALL LOCK WASHERS AT NO NO NO c-------- IlOUSING COVER FASTENERS NEXT SCIEDULED COMPLETE: MAINTENANCE ON MOV.
__ ?
Ii
Motor Operated Valve Fasteners s
03-Oct-96 COMPONENT PROBLEM DESCRIPTION WORK REQUIRED PRE VOTES POST VOTES OPERABILITY SI-407A 10 LOCK WASilERS MISSING ON LIMIT SWITCH INSTALL LOCK WASilERS AT NO NO NO r- -- -
IlOUSING CO\ PR NEXT SCHEDULED COMPLETE: MAINTENANCE ON MOV I LOCK WASilER MISSING ON SCC No SI-40711 ONE (1) LIMIT SWITCll llOUSING COVER FASTENER REPLACE ONE LIMIT SWITCH NO NO NO NO CARBON STEEL llOUSING COVER FASTENER AND COM PLETE: INSTALL LOCK WASHERS MISSING 10 LIMIT SWITCll llOUSING COVER No LOCKWASilERS AND 4 MOTOR MOUNTING SI-412A MISSING I LOCK WASilER FOR TOP llOUSING COVER INSTALL LOCK WASilERS AT NO NO NO AND I LOCK WASilER FOR MOTOR MOUNTING & 10 NEXT SCHEDULED COMPLETE: MAINTENANCE ON MOV.
No SI-412B MISSING I LOCK WASilER FOR MOTOR MOUNTING INSTALL LOCK WASHERS AT NO NO NO
- AND I LOCK WASilER MISSING FOR SPRING NEXT SCHEDULED COMPLETE: MAINTENANCE ON MOV.
No SI-415A STAINLESS STEEUCARBON STEEL MIXED YOKE BOLTS ON ORDER TO BE ON SITE NONE NONE NO
--- BOLTS NEXT MONDAY COMPLETE:
No SI-415B STAINLESS STEEUCARBON STEEL MIXED YOKE BOLTS ON ORDER, TO BE ON SITE NONE NONE NO
- BOLTS NEXT MONDAY COMPLETE:
No 12
Motor Operated Valve Fasteners 03-Oct-96 COMPONENT PROBLEM DESCRIPTION WORK REQUIRED PRE VOTES POST VOTES OPERABILITY SI-502A MISSING 4 YOKE MOUNTING LOCK FASTENERS AND 2 INSTALL liARDWARE AT NEXT NO NO NO LOCK WASiiERS FOR LIMIT SWITCilllOUSING COVER SCIIEDULED MAINTENANCE COMPLETE:
No SI-502B LOCKWASilERS MISSING ON YOKE MOUNTING INSTALL IIARDWARE AT NEXT NO NO NO FASTENERS AND LIMIT SWITCliilOUSING COVER SCIIEDULED MAINTENANCE COMPLETE:
No SI-506A MISSING ALL LOCK WASilERS FOR YOKE MOUNTING INSTALLIIARDWARE AT NEXT NO NO NO
--- AND LIMIT SWITCIIIiOUSING COVER FASTENERS SCHEDULED MAINTENANCE COMPLETE:
No l
SI-506B MISSING LOCK WASl!ERS FOR YOKE MOUNTING liARDWARE TO BE REPLACED AT NO NO NO FASTENERS AND LIMIT SWITCll liOUSING COVER NEXT SCilEDULED COMPLETE: MAINTENANCE No SI-602A MISSING 3 LOCK WASIIERS FOR LIMIT SWITCil INSTALL LOCK WASIIERS AT NO NO NO
-- IIOUSING COVER NEXT SCHEDULED COMPLETE: MAINTENANCE ON MOV.
No SI-602B MISSING LOCK WASIIERS ON LIMIT SWITCil llOUSING INSTALL LOCK WASHERS AT NO NO NO
- -- COVER NEXT SCIIEDULED COMPLETE: MAINTENANCE ON MOV, 13
I ATTACHMENT 3 Summary of interviews on Fasterer Work Practices Assessment Scope:
This assessment was conducted at the request of Plant Management to document normal maintenance practices for replacement of safety related fasteners. This was accomplished by face to face interviews with 82 personnel from PME, PMC, PMM, and NOC. Additionally,24 maintenance personnel assigned to ANO were interviewed by telephone. Planners and craft personnel from each maintenance organization and Supervisors, Field Engineers and contract craft personnel from NOC were included in the survey. A total of 106 personnel were interviewed. A questionnaire which was developed by plant staff was written up by OA for each person interviewed.
The four questions asked in the assessment were:
- 1. If you are performing a job and need a replacement fastener, what is your normal practice for replacing these fasteners on safety related components?
- 2. Do you inform your supervisor and document what you have done, if you identified a problem with fasteners?
- 3. What is the direction that you were given related to fastener replacement on safety related components?
- 4. Do you know of any specific safety related components that have fasteners installed that are not like for like replacements? Have you ever found any and what did you do after you found them?
Summary of Results:
As a result of this assessment it was concluded that plant personnel are cognizant of and adhere to program requirements for the replacement of safety related fasteners. It is a routine acceptable practice to use Q3 fasteners which have been up-graded by Engineering Evaluation. There are indications that in some cases, due to scheduling or a shortage of stock items in the warehouse, personnel have had the perception of being pressured to do whatever is necessary to get the job done. It appears that i sources of and responsibility for determining fastener material requirements need to be ;
clearly defined. l l
Based on responses to question #4, there are two components that may need to be I evaluated. The mounting screws for valve CC-135A pressure switch, and the motor termination cover bolts on LPSI Pump B were identified as potentially having incorrect i fasteners.