ML20214V037
| ML20214V037 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 11/20/1986 |
| From: | Lewis J, Russell J, Stewart D TENNESSEE VALLEY AUTHORITY |
| To: | |
| Shared Package | |
| ML20214G966 | List:
|
| References | |
| WP-21-SQN, WP-21-SQN-R, WP-21-SQN-R00, NUDOCS 8612090506 | |
| Download: ML20214V037 (20) | |
Text
- - _ _ _ _ _ _ - _ _ _ _ _ _ - - - _ _ _ _ - - _ _ _-
^1 '" .
TVA EMPLOYEE CONCERNS REPORT NUMBER: WP-21-SQN SPECIAL PROGRAM REPORT TYPE: Welding Project REVISION NUMBER: 0 TITLE: Weld Material Substitution and Quality REASON FOR REVISION: N/A SWEC
SUMMARY
STATEMENT: N/A PRRPARATION PREPARED BY: _
b Original Signed By R. D. Briggs 08-27-86 -
SIGNATURE DATE REVIEWS PEER:
Original Signed By J. F. Lewis 08-27-86 SIGNATURE DATE TAS: TECHNICAL ,IEW ONL
/ ll l bb SIGNATURE DATE CONCURRENCES Original Signed By CEG-H: L. E. Martin 09-04-86 SRP: w 81- 2o -3 (.
SIGNATURE DATE SIGNATURE
- DATE APPROVED BY:
bu DJ : H-M46 NiA DATE MANAGER OF NUCLEAR POWER DATE ECSPMANAGER['
CONCURRENCE (FINAL REPORT ONLY)
- SRP Secretary's signature denotes SRP concurrences are in files.
2242T 8612090506 861124 PDR ADOCK 05000327 p PDR l
_ - - - - _ - - - _ - - - - - - - - - - _ - - - - - - - - - - _- _ - - - - - - - - - - - - - - - - - - - -- - J
WELDING PROJECT EMPLOYEE CONCERN i
EVALUATION REPORT !
REPORT NUMBER: WP-21-SQN, R0 DATE: B/;Z,7/8'd>
SUBJECT WELD MATERIAL SUBSTITUTION AND QUALITY _
CONCERN (S) CONSIDERED: DHT-85--001 O
PREPARED BY @
85 , OC, WP REVIEWED BY be n/ //w $ 8 2 9 / f'A , OC, WP REVIEWED BY d O!E7OS , QA, WP y ,
REVIEWED BY , CEG-H, WELDING m _. . . . -
7 APPROVED BY H ,
,h U
[- h- 8h , PROGRAM MANAGER
- e 1581T b
~
EMPLOYEE CONCERN 7s*
SUMMARY
SHEET Report Number: WP-21-SQN, RO Report
Title:
WELD MATERIAL SUBSTITUTION AND QUALITY I. CONCERN CONSIDERED: DHT-85-OOL II. ISSUES INVOLVED
- 2. E7018 electrodes are of poor quality III. STATEMENT OF CONCERN / ISSUE VALIDITY Validity: Y ,N X , Substantiated: Y ,N X '
IV. EFFECT ON HARDWARE AND/OR PROGRAM
/'~'N None (effects on hardware previously evaluated per SO1851218 896)
V. JUSTIFICATION:
Investigation of the concern revealed that substitution of E70S-6 for E70S-3 is acceptable by DPM N73M2 Process Specification 1.M.1.2 (R3) and the 1983 Edition of Section IX of the ASME Code. Investigation of the E7018 electrode quality per S01 851218 896 and WP-12-SQN did not substantiate weld quality problems related to electrode quality.
VI. RECOMMENDATION AND/OR CORRECTIVE ACTION NEEDED None VII. REINSPECTION NEEDED: Y ,N X Page 1 of ?
O cA
+ .
,e Report Number: WP-21-SQN, RO i
VIII. ISSUE CLOSURE Closure is based on this report.
IX. ATTACHNENTS
- 1. Text of Employee Concern e
! 2. Report Number S01 851218 896 (RINS) .
\
l i
I i
l ll:
I l D l
]
l i
l -,
1 i
.O Page 2 of 2
EMPLOYEE CONCERN 4
fs Report Number: WP-21-SON, RO Report
Title:
WELD MATERIAL SUBSTITUTION AND QUALITY I. SCOPE OF EVALUATION This engineering analysis covers the following SQN concern:
DHT-85-001 II. ISSUE (S) ADDRESSED BY CONCERN The concern was analyzed to determine the issue (s) voiced by the concerned individual. This' issue (s) is as follows:
- 2. E7018 electrodes are of poor quality.
/'7 III. CONCERN VALIDITY OR SUBSTANTIATION The Welding Project (WP) has reviewed the investigation (RIMS No. SO1
+ 851218 896) of this concern performed at SQN and is in concurrence with the evaluation of the issues.
The investigation of the first issue determined that.E70S-6 can be purchased with chemical analysis which' meets the A number limits of l E70S-3. Requalification of the weld procedures is required only when essential variables of the qualified weld procedures are changed beyond l
the limits specified in Section IX of the ASME Code. TVA has purchased l
E70S-6 weld rod to meet the required A ' number chemistry there by eliminating the need to requalify the weld procedures.
I Page 1 of 2
~
I l '
(
l-
~ . ,
Report Number: WP-21-SQN, RO Investigation of the second issue involving E7010 electrode determined that weld discontinuities had occurred; however, en insufficient quantity of the electrode was available at the site for the Site Welding Engineer to perform a mee.ningful sampling and determine if the discontinuities were attributable to electrode quality. Radiographic examination of welds made with the questionable electrode failed to identify any specific rejectable defects which could be attributed to e the electrode weldability. The' manufacturer and size electrode was Oerlikon - 3/32". This electrode is no longer in use at the TVA nuclear plants.
Based on the investigation no specific violation of the specification or ASME Code could be substantiated and no weld quality problem associated
,, ith electrode quality was identified.
w These issues are closed by this report.
.O l
l l
l l
l l
l
! Page 2 of 2 l
r.
i L i .- . . . - .
l
lz . .
.~
ATTACHMENT 1 Page 1 of 1 08/05/86 (EMPLOYEE CONCERNS) PAGE: 1 09:51:01 CAT ISSUE PLANT PRIORITY ORG QTC EGG INSP SD RD GD IO --------CONCERN--------
WE S 581 SS DHT-85-001 KEYWuRDS: WELD ROD PROCEDURE QUALITY WELDING RODS ARE OF POOR QUALITY. WELD PROCEDURES CALL FOR E70S-3 WELD ROD BUT ONLY E70S-6 WELD RODS ARE ONSITE.
IR: STAT: RC:
TECHNICAL CONMENTARY:
Total For This Selection: 1 r
i
=#
e
_ _ _ l
_ ~ __
, .. , et L L d C 4 4M*J 14 L 4 Page 1 of 3
. m . ,- : , ~~ ~~ .
[ g m* - y m , ---nut. iS h m 5
' I 5
S01 851218 896 1 I t' Y 's s3'>ss
I rr(/ '.. ., ,
u...
- i. .. c. :
l DEC 18.1985 f
l D. E. Es111e,
- 500 PE, Sequoyoh L Sobjects SIGMFIAE are t man PEANT - ENFLOYEE CDIE:EIN - UELD MATFETaf.
PROCUREEENT AND USE - E7018 ELECTRODES AND E706-6 UELD EDD .
l This esmerandes is is respomme to the employee concerne stated on your Forus 64A Esply Nees to as and as discussed with R. M. Re dge and J. L. Adams ! ,
of the Site codes and Standards Section on December 12, 1985, regarding the procuresset and use of welding filler esterial. j ene of tha concerne the employee had see is reference to the use of E705-4 filler esterial dere the Detail Meld Procedure specifies the use of E708-3. BRE E73t2 Process Specification 1.M.1.2 (R3).
" General Melding Pr===A=ees byecification." states in paragraphs 14.22.3 and 14.24 that E708-3 as.d E705-4 filler meterials are interchangeable (see Attachment A). This is is accordance with the 1983 Edition of the ASEE Boiler and Pressere Teeeel (36PT) Code Section II, "Qas11ticatiqn Standsad for Melding and Erastes Precedsres. Welders, Brazers, and ,
Welding and Boostag Opeseters." .
^
Seettan II *1===deias uelding filler meterial by F amber, ubich is based essesstally se their =,=mh411ty characteristice; and by A nanber, each ideasiftas the weld estal by cheetant camposittoe. Eseh se1Jims prosess sa sosissed specifts essential vertables and is defined as a .
ebenge is a ==tdeae. epeds, ties that stil af fact the mech ==s,m1 properties (other them aseek taughnese) of the melht. A change la se essential vertabte See a gives solding proceso esmetitutes the need for requalificatise of precedores. Me ensemaial variables applicable to this specific case fee the see toegstes are melding process are found is paragraphe qu404.4 and (p604.5 under Settime II, Article IV. " Weld Deta" (see Attachneet 5).
Pasagraph (p404.4 states that a abange from one F ausber to any other F
musher listed is tehla 98432 regoires a requalification of the procedure. -
575-3 and E795-4 welding rods are classified under SFA S.18. " Specification ,
ser Castem Steel Filler Metals for Gas Shielded Arc Weldies," under the q B&rf Code,Section II, Part C, thich meets the intent of the referenced ..
Pesagraph. ! W
At taciunent 2 )
Page 2 of 3
,,.n. . --. ~ ~ .
%W ,_
A i
2 -
D. E. Th111a NEQUOTAE EDC12AE PLANT - IMFIDTEE CONCERN - VELD MATERI AL FROCURDUT ,
AND USM - E7018 ELECTRODES AND E703-6 WELD 300 Paragraph (p404.5 states that a change in thie chemical composition of the sold deposit from one A neber to another A number specified in Tsele i
4p-442 requires a regnatification of the procedure. Although the
===i- Limits for 3708-3 and E70S-6 differ under SFAS.18. TVA has 11mitad the chemical analysis of E70S-4 weld rod to meet the requirements
- et A amber 1 (.15 percoat ==t- carbon.1.60 percent maaimum asaganess, and 1.00 percent ===1- silteam) sa stated in paragraph 14.24 of process specification 1.M.1.2 (E3). Therefore, so requalification of procedures is required.
+
the' ether employee came=rn deals with TVA's policy of weld saterial 3 precorument, especially E7018 electrodes. TVA is committed to purchasing melding filler esterials to the latest editico of the AME B&FV j .O Code. Secties 111. "Relee for Ceestruction of 3sclear Power Flant Camponents." and Section 11. Part C. "Materist Specifications - Helding Beds. Electrodes and Fillar Metals." A list of approved vendors for solding asterials is retained by TVA heaed on ASME certificatica and a weldsbility perfoessace test ad=isistered by TV4 prior to acceptance ef the castract. If a probles arises with a particular heat, type, or siae of electrode or sold rod, as investigation is inittsted within the Of fice of Peeer and M=aertas to determine if the problem is i justifiable. If there to joesificatian for further investigation.
==== tee resserah and teettag to perfereed to deterates a resolution.
' the particular censers abeet E7018 electrodes amanfactured by a specific sender taaelving the aristance of'pereetty at the start and stop points of the sold head una mot breaght to the attention of the Site Helding
,' Begiamer estil it use ,too,,$ste to de meaningful sampling. At the time of motifteattaa there une est enoagh of the synestionable brand electrode to de sufftefame teettag. The umiding operatises tenich favolved the use of this particular brand med sias electrode se the feeduster heater modificatismo una elesely moottored by the Sito Uelding tagineer, prior to motifiestion of this specific problem. Vartoos problema seleted to weld dia-timettias in the weld joint were identified, benever as oposific defects, rejectable by rsJ1ographic examinattoa. ~
a==1A he attributed to the electrode weldability.
6 i O ,
- . 4h 9
l
,,,.t At taciunen t 2
.c t' . .
Page 3 of 3
. y ,, _ . _ v;7;,~.. , - -~
, 0
'1 t -
3 r-
,j D. E. h111e 4
s j SEEpoTAE MICLEAR MAIrf - Bir1#rEE CONCERE - WELD MATERIAL 790CUREG3rT ans ass - E7ats mLaCTapeEs Ass E70s-4 vsLa aco -
].
b- -
- Anem14 there be any gmeetisme resseding this reopease, please contact
. J. L. Adame, at ":g:,,eh Codes and Standards, estensies 7245.
j[ .
g D. V. Goetchaos l$
j spos.na me l1 Atth lJ 44 (Attecheent)8 u M ft RDB. LP 48 132D-Cj b
r.
3
?
l.
l 4
8 I.
h
\ , e ..e k
r, o
1, .
1 l$
D
,# e#
~
b, a $P*
J ~
ENGINEERING CATEGORY Enclosure 3 Page 1 of 2 ECTG WRITER'S GUIDE ELEMENT REPORT FORMAT 1.0 Issue 1. Characterization of Issue (s)
Characterization 2.0 Summary 9. Discussion, Findings and Conclusions 3.0 Evaluators Cover Sheet Information 4.0 Evaluation 8. Evaluation Process Process 5.0 Findings 9. Discussion, Findings, and Conclusions 6.0 Root Cause
- Overall Root Cause will l (Collective Significance)X*
not be considered at this l report level.
l Attachments / Attachments as required 7.0 List of Concerns Other items included 2. Have issue (s) been identified in Engineering Element in another systematic Reports analysis?
- 3. Document nos., tag ros.,
locations or other specific descriptive identifications stated in element.
- 4. Interview files reviewed
- 5. Documents reviewed related to the element 1992T L
ENGINEERING CATEGORY Enclosure 3 Page 2 of 2
~
ECTG WRITER'S GUIDE ELEMENT REPORT FORMAT Other items included in Emineering Element 6. What regulations, licensing Repoi.s commitments, design require-(cont'd) ments, or other apply or control in this area?
- 7. List requests for information, meetings, telephone calls, and other discussions related to elemer:t .
l l
l l
, - - , , - , - + - - , - - - . - , - - - . , . - . - - - - - -
,-n--..,--n, n.--- ------n,----, . - - - - - - . - -,,, --a -
i OPERATIONS CATEGORY gaclosure 3 i
OPERATIONS (OP) ELEMENT REPORTS NOTES /M+FENTS ICTG WRITER'S GUIDE f
t Issue I. Title The brief introduction 1.0 touches on the source of
- Characterization Very brief introduction the concerns.
i Summary I. Title 1. The Conclusions are 2.0 towards the end of the Very brief introduction findings.
! III. Finding (Conclusions) 2. The Conclusions
) services as a sammary of the findings.
li l
Cover Sheet 1. The printed name of the 3.0 Evaluators original evaluator (s)
'! appears on the cover i
sheet.
- 2. The peer reviewer and l CEG-N approval signa-tures are also on the cover sheet.
4.0 Evaluation II. Specific Evaluation l
i Process Nethodology l
1 i
4 Findings III. Findings 5.0 1
1880T l
?
Eneircura 3 OPERATIONS (OP) ELJIENT REPORTS NOTES /ColEIENTS ECTG WRITER'S GUIDE Root Cause IV. Root Cause 1. At the element level 6.0 the Root Cause is often (Collective Significance) not identifible.
1 2. Collective significance is not addressed at the
! element report level.
i
- II. Specific Evaluation 1. A list of the concerns 7.0 Attachments / with text are included List of Concerns Methodology within this section.
- 2. Other reports are
- i. sometimes attached.
1 I
i i
i i
i
{
i i
l
Exclsstra 3 ECTG WRITER'S GUIDE NSRS/ERT* WELD PROJECT (WP) REPORTS NOTES /CONMENTS 1.0 Issue Background Info Issues Addressed Characterization (Section I) By Concerns (Section II) 2.0 List Of Concerns Background Info Scope of Evaluation (Section I) (Section I and Att-1) 3.0 Evaluators Cover 4heet Coversheet 4.0 Evaluation Scope Not Delineated As Part Process (Section II) Of The WP Reports however it is addressed as part of the Weld Projects Program Manual 5.0 Findings Findings Validity or (Section III) Substantiation (Section III) 6.0 Root Cause** Conclusion and Validity or *** Note that recommendations are not included in element reports under the current ECTG program.
and Conclusion Recommendations Substantiation ** Overall Root Cause will (Section IV)*** (Section III) not be considered at this report level.
- The Weld Project has endorsed a number of ERT Reports and general issue level reports as adequately addressing the concerns at this level for SQN.
E clesura 4 Page 1 of 5 EMPLOYEE SEQUOYAH CONCERN ELEMENT REPORT NUMBER ISSUE Engineering 20901 IN-85-407-001 Q-List Differences (Initial) IN-85-688-003*
IN-86-087-004 IN-86-090-001
- Concern IN-85-688-003 added after 9/26/86.
Engineering 20902 IN-85-407-001 Impact and Significance (Initial) IN-86-087-004 of Q-List Differences IN-86-090-001 Engineering 24300 XX-85-122-006 Inadequate Diesel Generator (Initial) XX-85-122-007 Margins WI-85-100-002 WI-85-100-010 I-85-132-SQN-01*
XX-85-122-030 XX-85-122-031 XX-85-122-032
- Concern I-85-132-SQN-01 added after 9/26/86.
Engineering 22405 MAS-86-005 Support of Cables
, (Final)
NOTE: Initial report transmitted 11/5/86.
Engineering 23206 IN-85-400-002 Rubber Gasket Deterioration (Final)
NOTE: Initial report transmitted 11/19/86.
Operations 30101 EX-85-085-003 Kerotest Valve Leakage (Final) IN-85-594-001 and Corrosion IN-86-285-QD1 XX-85-090-001 XX-85-090-002 NOTE: Initial report transmitted 9/23/86.
L
Encicsues 4 Page 2 of 5 EMPLOYEE SEQUOYAN CONCEEN ELEMENT REPORT NUMBER ISSUE Operations 30107 IN-86-273-001* General Print Concern (Final) KK-85-087-001 Reactor Building
- Concern IN-86-273-001 deleted from report 30107 after 9/26/86.
NOTE: Initial report transmitted 10/21/86.
Operations 30114 IN-86-137-005 Malfunction of Doors (Final)
NOTE: Initial report transmitted 9/15/86.
Operations 30601 IN-85-311-008 Fire Protection Equipment (Final) Works Improperly NOTE: Initial report transmitted 10/22/86.
Operations 30706 KK-85-001-001 (Final) SQM-86-004-017 WBN-233 KK-85-077-001 IN-86-209-011**
SQM-86-004-018*
- Concern SQM-86-004-018 deleted after 9/26/86.
- Concern IN-86-209-011 added after 9/26/86.
Operations 30805 SQP-85-004-005 Maintenance Training (Final) EAC-85-004 NOTE: An initial report was not necessary. This will be the only submittal for 30805.
Operations 30901 IN-85-977-001 Adequacy of Procedure (Final)
NOTE: An initial report was not necessary. This will be the only submittal for 30901.
'- /
Encicsura 4 Page 3 of 5 EMPLOYEE SEQUOYAH CONCERN ELEMENT REPORT NUMBER ISSUE Operations 31211 XX-85-032-001 Security Design and Hardware (Final) XX-85-099-001 IN-85-619-002 IN-85-955-001 IN-86-291-007 RII-86-A-0095 NOTE: Initial report transmitted 10/22/86.
Operations 30402 IN-85-207-002 Electrical Penetration (Final) Breached NOTE: Initial report transmitted 11/4/86.
Operations 31309 WBN-0135 Plant Improvement /
(Final) Suggestions NOTE: An initial report was not necessary. This will be the only submittal for 31309.
Welding WP-05-SQN, R1 IN-85-339-005 (EN 23200)* Duct Installation and (Final) PH-85-012-X03 Documentation ,
(Not Generic) Requirements
- Database subcategory as shown on 9/26/86 printout.
NOTE: Initial report transmitted 9/3/86.
Welding WP-06-SQN, R0 IN-85-476-004 (Not Generic) Training and (Final) IN-85-981-001 (Not Generic) Certification of WI-85-081-007 (Not Generic) Construction Welding WI-85-041-002 (Not Generic) Inspections NOTE: Initial report transmitted 9/3/86.
Welding WP-07 SQN, R1 IN-85-706-001 (WE 50100)* Welder Training (Final) XX-85-045-001 (Not Generic) Program for EX-85-008-001 (WE 50100)* Construction and and Nuclear Operations
- Database subcategory as shown on 9/26/86 printout.
NOTE: Initial report transmitted 9/3/86.
i k
Enc 1csura 4 Page 4 of 5 EMPLOYEE UEQUOYAH CONCERN ELEMENT REPORT NUMBER ISSUE Weld).ng WP-10-SQN, R0 WI-85-030-010 (Not Generic) SQN Implementation
~(linal) of QAE-80-2 NOTd: Initial report transmitted 9/3/86 We ding WP-11-SQN, R1 IN-85-282-002 (C0 11300)* Surface Grinding of
- Final) IN-85-271-001 (Not Generic) Welds
- ?:stabase subcategory as shown on 9/26/86 printout.
NBTE: Initial report transmitted 9/3/86.
uelding WP-13-SQN, R0 IN-85-247-002 (WE 50800)* Suitability of (Final) IN-85-303-001 (WE 50800)* Welding Equipment for Construction and Modification Welding Activities
- Database subcategory as shown on 9/26/86 printout.
NOTE: Initial report transmitted 9/3/86.
W'elding WP-14-SQN, R1 IN-86-047-001 (WE 50300)* Administrative Policy (Final) IN-86-158-006 (WE 50100)*
- Database subcategory as shown on 9/26/86 printout.
NOTE: Initial report transmitted 9/15/86.
Welding WP-17-SQN, RO IN-85-127-001 (Not Generic) Vendor Weld Quality (Final) IN-85-007-003 (Not Generic)
IN-85-657-001 (Not Generic)
NOTE: Initial report transmitted 9/3/86.
Welding WP-18-SQN, R1 KK-85-098-001 (WE 50600)* Effect of Laminations (Final) on Weld Quality
- Database subcategory as shown on 9/26/86 printout.
NOTE: Initial report transmitted 11/5/86.
L
i Enclesurs 4 Page 5 of 5 EMPLOYEE SEQUOYAH CONCERN ELEMENT REPORT NUMBER ISSUE Welding WP-20, R1 SQM-86-008-001 (WE 50600)* Undersize Socket (Final) Welds on the Safety Injection System.
- Database subcategory as shown on 9/26/86 printout.
NOTE: Initial report transmitted 9/15/86.
Welding WP-21-SQN, R1 DHT-85-001 (WE 50800)* Weld Material (Final) Substitution and Quality
- Database subcategory as shown on 9/26/86 printout.
NOTE: Initial report transmitted 11/11/86.
- s
\
s N
\
l 1