IR 05000518/1980016
| ML19338F691 | |
| Person / Time | |
|---|---|
| Site: | Hartsville  |
| Issue date: | 09/05/1980 |
| From: | Girard E, Herdt A NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML19338F687 | List: |
| References | |
| 50-518-80-16, 50-519-80-16, 50-520-80-16, NUDOCS 8010270060 | |
| Download: ML19338F691 (7) | |
Text
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NUCLEAM S.dGULATORY COMMISSION o
G ,e REGION 11 [[ g 101 MARIETTA sT, N.W., sulTE 3100 %, ATLANTA, GEORGIA 30303 Report Nos. 50-518/80-16, 50-519/80-16 and 520/80-16 Licensee: Tennessee Valley Authority 500A Chestnut Street Chattanooga, TN 37401 Facility Name: Hartsville Docket Nos. 50-518, 50-519 and 50-520 License Nos. CPPR-150, CPPR-151 and CPPR-152 Inspection at site near Hartsville Tennessee Inspector: /..h
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AL / I 70 E. H. G ' ra rd / U Date Sif;ned ~ ' f8
Approved by: . _ m em av ~p6te S(gned A. R.~ fief, Section Chief, RC&E5' Branch SUMMARY Inspection on August 4-8, 1980 Areas Inspected This routine unannounced inspection involved 36 inspector-hours onsite in the areas of open items (Units A1, A2 and B1); steel structures and supports - abservation of welding activities within the containment, welding material control, and welder qualification (Units Al and A2); reactor coolant loop piping welding material control (Units Al and A2); and other safety-related piping welding material control (Units Al and A2).
Results No items of noncompliance or deviations were identified in the areas inspected.
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DETAILS 1.
Persons Contacted Licensee Employees
- R. T. Hathcote, Project Manager
- S. P. Stagnolia, Welding QC Unit Supervisor J. Davis, QA Engineer (Training)
- H. M. Stephens, QA Engineer (Training)
D. Widner, Mechanical Project Engineer
- T. L. Carden, Welding QC Assistant Unit Supervisor R. C. Nixon, Document Control Supervisor Other licensee employees contacted included construction craftsmen, QC inspectors, and office personnel.
NRC Resident Inspector
- W. B. Swan
- Attended exit interview 2.
Exit Interview ) The inspection scope and findings were summarized on August 8, 1980 with { those persons indicated in Paragraph 1 above.
3.
Licensee Action on Previous Inspection Findings (Closed) Infraction (518/79-28-01): Preheat TVA's letter of response dated February 19, 1980, has been reviewed and determined acceptable by Region II.
The inspector held discussions with the Welding QC Supervisor and other Welding QC personnel and examined the corrective actions as stated in the letter of response. Proper use and monitoring of preheat was observed by the inspector during his inspection of the welds described in paragraph 5.a below. The inspector concluded that TVA had determined the full extent of the subject noncompliance, performed the necessary survey and follow-up actions to correct the present conditions and developed the necessary corrective actions to preclude recurrence of similar circumstances. The corrective actions identified in the letter of response have been implemented.
(Closed) Infraction (518 /80-04-01): Failure to follow procedure in weld joint identification.
TVA's letter of response dated April 9, 1980, has been reviewed and deter-mined to be acceptable by Region II. The inspector held. discussions with the Welding QC Supervisor and other Welding QC personnel and examined the corrective actions as stated in the letter of response. The licensee's revised procedures relative to this item (SOP-17R2 and SOP-34R3) were - -
. ... - .. ~ - , , - - J i-2- , reviewed and proper identification was observed at welds being performed in ' the Pipe Fab Shop and on the containments of Units Al and A2. The inspector , - ' concluded that TVA had determined the full extent of the subject noncom-pliance, performed the necessary survey and follow-up actions to correct the present conditions and developed the necessary corrective actions to , preclude recurrence of similar circumstances.
The corrective actions identified in the letter of response have been implemented.
(Closed) Deficiency (518, 520/80-07-01): Failure to follow procedure in . welding filler material control.
TVA's letter of response dated June 4,1980, has been reviewed and deter-mined to be acceptable by Region II. The - inspector held discussions with Welding QC personnel and examined the corrective actions as stated in the letter of response.
Proper entries on weld material requisitions were , ' verified at the weld material issue stations checked as described in paragraph 5.b below. The inspector concluded that TVA had determined the full extent of the subject noncompliance, performed the necessary survey and follow-up actions to correct the present conditions and developed the , ' necessary corrective actions to preclude recurrence of similar circumstances.
The corrective actions identified in the letter of response have been implemented.
(Closed) Infraction (520/80-07-03): Failure to follow welding procedure l , preheat requirements rep 7at.
' . TVA's letter of response dated June 4,1980, has been reviewed and deter-
' ! mined to be acceptable ~ by Region II. The inspector held discussions with the Welding - QC Supervisor and with welders and examined proper use and monitoring of preheat'as stated for item 518/80-28-01 above. The inspector i I concluded that TVA had determined the full extent of the subject noncom-
pliance, performed the necessary survey and follow-up actions to correct the present conditions and developed the necessary corrective actions to preclude recurrence -of similar circumstances.
The corrective actions identified in the letter of response have been implemented.
(Closed) Infraction (519/80-07-04): Failure to follow procedure in weld joint identification.
TVA's letter of response dated June 4,- 1980, has been reviewed and determined to be acceptable by Region II. The inspector held discussions with the Welding QC Supervisor, other Welding QC personnel ' , and welders and examined the corrective actions as stated in the letter of response. Proper identification was observed on the Unit B-1 system piping being welded in the pipe Fab' Shop (e.g.
weld bl ESWOO395R1). The inspectcr concluded that' TVA had determined the full extent of. the subject noncom- ' pliance, performed the necessary survey and follow-up actions to correct - ' the present conditions and '~ developed the necessary corrective actions to preclude recurrence of ~ similar circumstances.
The corrective actions identified in the ~1etter of response have been implemented.
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Unresolved Items Unresolved items were not identified during this inspection.
5.
Steel Structures and Supports (Units Al and A2) a.
Observation of Welding Activities within the containment The inspector observed in process welding activities on the free-standiag metal containment vessels to determine compliance with applic-able code and procedural requirements. The code applicable to the metal containment vessels in ASME B and PV Code Section III Class MC (74S74).
The licensee implements the code requirements through C. F.
Braun Specification 300-13 (Rev. 1). Welding activities were observed by the inspector for use of weld operation checklists, availability of applicable drawings and procedures, welding techniques and sequence, weld geometry, fitup, electrode welding position and electrical charac-teristics, and equipment in proper condition.
The activities were observed on the following welds: Unit Weld Al CS 00418 R4 Al CS 00510 Al CS 00512 Al CS 00730 Al CS 00731 A2 CS 00227 A2 CS 00230 A2 CS 00232 A2 ABC 00832 b.
Welding Material Control The inspector examined the-licensee's controls on welding materials to determine whether the materials were being purchased, accepted, stored and handled in accordance with their QA procedures and ASME Code require-ments. In order to assure that all welding material is identifiable as acceptable until consumed the licensee states that they purchase and control all welding materials to ?.he highest quality level.
This permits the licensee to avoid designating and controlling specific heats or lots of material to specific quality level items.
The inspecter examined the adequacy of the licensee's controls through review of the following: . (1) Purchasing procedure - CEP 4.01 R9 (2) Procedures for receiving, storing, distributing and handling welding materials - CEP 8.03 R11, RIS F. PM M904 R4, and CEP 7.02 R, . -4- . (3) Purchasing and -receiving records (to determine compliance with the above procedures) for randomly selected examples of welding materials E70S-2, Heat C4370B131; ER 309L, Heat 0638A; and - E7018, Lot 9159 (4) Identification on welding materials in accordance with the material specifications and the procedure (SOP 23 RI) in warehouse storage, at issue stations (Station 1, 3 and the pipe Fab Shop and Boiler-maker Shop), and in the field.
(5) Test records for E70S-2, Heat C4370B131; ER 309L, Heat 0638A; E 7018, Lot 9159; E70T-1, Lot 1008A and ER 308L, Heat 761409 for conformance with Code requirements.
(6) Procedure for environmental control, including holding and baking temperatures (CEP 803 RII) and compliance with the procedure (as observed at the issue stations identified in (4) above).
(7) Distribution and return of welding materials (as observed at the issue stations identified in (4)). (8) Compliance with procedures for limiting moisture pickup and for identification (CEP 8.03 RII and S0P 23RI) as observed after issue.
c.
Welder Qualification The inspector examined welder and welding operator qualifications for the welds listed in'5.a above to determine their compliance with the Code and the licensee's procedural requirements.
(1) The following licensee documents, which describe their qualifi-cation requirements for the welders and welding operators, were reviewed by the inspector for compliance with the ASME Code: Process Specification 1.M.2.2(b) - - OEDC QA Manual, Section 5.2 R12 CEP 2.11 R3 - (2) The inspector examined the adequacy of the licensee's com-puterized system for maintaining welder qualification status to assure code compliance.
(3) The inspector examined the records of the following welders to determine whether they were qualified for the welding they were observed performing:
, , -5- , Welder Unit . Weld BAEZ Al CS 00512 BAMJ Al CS 00418 R4 BACT A2 CS 00230 BAIC A2 CS '00227 BAIS A2 ABC 00832 BAMM A2 CS 00232 (4) The performance qualification records for the above welders were reviewed by the inspector for qualification status accuracy and conformance with Code requirements.
No items of noncompliance or deviations were identified.
6.
Reactor Coolant Ieop Piping - Welding Material Control (Units Al and A2) The code applicable to the licensee's reactor coolant loop piping welding is ASME B and I7 Code Section III Class 1 (74S74). As noted in 5.b above, the licensee indicates that all welding material is purchased and controlled to the highest' quality level. To verify the adequacy of the licensee's controls - for reactor. coolant loop piping welding material the inspector examined the licensee's procedures, procedure implementation and records as described in 5.b above, except that they were examined for conformance with ASME B&PV Code Section III Class I requirements.
No items of noncompliance or deviations were identified.
7.
Other Safety-Related Piping - Welding Material Control (Units Al and A2) The code applicable to the licensee's other safety-related piping welding (i.e.
other than reactor coolant loop) is ASME B and PV Code Section III.
Class. 2. and 3.
As noted in 5.b above, the licensee indicates that all welding material is purchased and controlled to the highest quality level.
To verify the adequacy of the licensee's controls for welding material for the other safety-related piping the inspector examined the licensee's procedures, procedure implementation, and records as described in 5.b above, except that they were examined for conformance with the (lower quality level) ASME. B and PV Code Section III Class 2 and 3 requirements.
In examining welding material control at a Class 3 safety-related piping weld (Essential Service Water System Weld A2 ESW 00361) the NRC inspector , noted a few pores in the deposited weld metal. The welder informed the NRC inspector that E70S-2 wire recently put' in use appeared to be producing the porosity and that other welders had observed the same problem. In subsequent discussions with licensee personnel the NRC inspector was informed that the questioned wire was being investigated. The wire was identified with the following alloy (heat) numbers: .
m- . 4- . ,. .,. -6- . Wire Diameter Alloy No.
' 1/16 inch A 4370B131 3/32 inch C 4370B131 1/8 inch D 4370B131 ' The NRC inspector informed the licensee that their investigations of the ' welding material would be considered an Inspector Followup Item, - - - 518, 520/80-16-01,' Welding Material Quality.
No items of noncompliance or deviations were identified.
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