IR 05000373/1978029
| ML19261B105 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 12/18/1978 |
| From: | Barrett P, Spessard R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML19261B103 | List: |
| References | |
| 50-373-78-29, 50-374-78-21, NUDOCS 7902090389 | |
| Download: ML19261B105 (5) | |
Text
{{#Wiki_filter:, - , U.S. NUCLEAR REGULATORY COMcISSION OFFICE OF INSPECTION AND ENFOPCEMENT
REGION III
Report No. 50-373/78-29; 50-374/78-21 Docket No. 50-373; 50-374 License No. CPPR-99; CPPR-100 Licensee: Commonwealth Edison Company Post Office Box 767 Chicaco, IL 60690 Facility Name: La Salle County Station, Units 1 and 2 Inspection At: La Salle Site, Marseilles, IL Inspection Conducted: November 8 and 9, 1978 -- f f -(- 4.e { f([[ ' / ' ' inspector: P.
A.
Barrett ' , / ' jr' q ,;) % * s ' - ~- [' U!'/ * Approved Ey' R.
L. Spe'ssard, Chief / . Engineering Support Section 1 _I_n spec t ion Summa rv Inspection on November 8 and 9, 1978 (Report No. 50-373/78-29; 50-374/78-22' _ Areas Inspected: Observation of Unit 1 instrumentation installation activ-ities and Unit 2 evening shift welding activities; and review of related records. The inspectica involved a total of 14 inspector-hours onsite by one Fr" inspector.
Results: Of the two areas inspected, one item of noncompliance was iden-tified in one area - (Infraction - failure to follow installation drawing - Paragraph 1.b).
f0
. . DETAILS Persons Contacted Plant Personnel
- R.
J. Legner, Quality Assurance Supervisor
- J.
R. Kodrick, QA Mechanical Coordinator
- R.
T. Rose, Station Construction
- E.
Wendorf, Statica Construction
- S.
P. Johnsor. Station Construction
- J.
Gailing, Station Construction u.
- D.
J.
Skoza, QA Engineer
- R.
Scott, Station Nuclear engineering Department
- T.
E. Watts, Station Nuclear Engineering Departe nt Other Personnel
- R.
C.
Schulz, Quality Control, Morrison Construction Company
- M. Whury, Ouality Control, Morrison Construction Company
^K.
J.
Hanilten, Project Manager, Morrison Construction Conpany
- E.
K. Krutz, Quality Control, Sargent & Lundy
- C.
T.
Brinson, Quality Control, General Electric
- P.
Irezan, Construction Engineer, General Electric
- Denotes those present at the exit interview.
Functional or Program Areas Inspected 1.
Observation of Instrumentation Work Activities The RIII inspector observed and discussed with craft and QC a.
personnel the Unit 1 fabrication activities of the instrument pipe and components identified on Morrison Construction Company isometric drawings No. HP-37, Rev. A and No. HP-38, Rev. A.
The instrunentation is part of the high pressure core spray system.
The components, pipe, and weld rod were as specified.
The completed welds exhibited no cracks, porosity, overlap, undercut, or lack of fusion.
A QC inspector was present at the work activity.
The weld procedures No. P8-18LS, Rev. 3 and No. ES-14LS, Rev. 3 were controlled and distributed in accordance with the master log and were easily accessible to the welder.
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, . During a discussion, welder No. J-10 exhibited thorough knowl-edge of the context of the pertinent weld procedures.
The Rill inspector inquired as to how the voltage and current were being controlled during the welding of the above instru-ment lines.
The welding grid control No. 434 had a dial (rheostat) which was used to adjust the current input during the weld process.
The grid control was not calibrated.
The licensee provided the Weld Procedure Amperage / Voltage Check record, which indicated verification of the specified arperage and voltage of approximately five weld operations per week.
A calibrated volt / ammeter was used for these checks.
The licensee stated that these indicated measuraments were made at the ends of the weld leads and were made on a random selection of welders.
Welding grid centrol No. 434 had never been included as part of the weld process system during any of the documented volt / amperage verifications.
The time duration on site of welding grid control No. 434 could not be established.
The RIII inspector identified no conflict between the above activities and ASME llI Division 1, Article NCA-4000 and ASME IX, 1974 Edition, Part Q'.l. b.
The RIII inspector observed the installation of two L' nit 1 redundant reactor water level instrumentation lines.
One line was identified on MCCo isoretric drawings No. NB-19, Rev. O and No. NE-18, Rev. O.
The second line was identified on MCCo isometric drawings No. NB-21, Rev. O and NB-22, Rev. O.
The components, location and welds were in accordance with the applicable isometric drawings, except as described below.
Tbe redundancy and separation of the above lines and instruments were adequately maintained.
The line welds exhibited no cracks, porosity, overlap, undercut or lack of fusion.
On November 8, 1978, the RIII inspector identified the field pipe, shown on isometric drawing No. NE-19, Rev. O, as being installed incorrectly.
The field pipe was welded to the wrong fabricated NSSS pipe.
Therefore, the field installed pipe supplied the wrong instruments.
The installation record indicated that the field pipe had been accepted as installed.
Before the completion of the NRC inspection this matter was documented on Nonconformity Reports No. 334 and oo.
335.
This condition is contrary to 10 CFR 50, Appendix E, Criterion V and CECO Topical Report CE-1-A, Rev. 5, Section 5 and is an item of noncompliance, as identified in Appendix A of the report transmittal letter.
(373/78-29-01) -3-
. . . . , c.
The RIII inspector verified that the following reactor water level instruments were of the ranges specified on General Electric drawing No. 234A930lTD, sheet 10: NSSS Instrument Panel 1H22-P026 No. 1B21-NO37A No. 1B21-NO37C No. 1B21-NO24A NSSS Instrument Panel lH22-P027 No. 1B21-5037B No. 1B21-5037D No. 1B21-N024B These instruments were connected to the pipes identified on isometric drawings No. NB-18, Rev. O, NB-19, Rev.
O, NB-21, Rev. O, and NS-22, Rev.
O.
One item of noncompliance was identified, as previously described.
2.
Indepencent In s pec t ic.1 During the night shift, the RIII inspector observed some of the in-process weld activities of a twelve inch pipe in the Vent Main Steam System.
The weld placement connected piece 2MSO4BV-12" No. 4 (fabrication drawing No. VMS2185) to piece 2MSO4BV-12" No.
5 (fabrication drawing No. VMS2136).
The weld was identified as joint No. MS632 on traveler No. MST33. Welder No. F-35 was making the root pass s:onsumable insert) in accordance with weld procedure No. Pl-8LS, Rev. 6.
The weld exhibited no internal or external defects.
The backing gas flow rate was within the specified range.
On the following day the RIII inspector observed the completed weld placerent and identified no defects.
No items of noncompliance were identified.
3.
Record Review of Instrumentation Work Activities a.
The RIII inspector reviewed Revision A to drawings No. HP-37 and HP-38.
The crawings had been revised to identify weld procedure No. DSl '+LS, Rev. 3 whirh had been used to weld the specified dissimi.ar materials.
The revisions to the drawings were approved by an authorized welding technician.
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. % The instrument lines, identified on the above drawings, were being assembled by welder No. J-10.
The MCCo Record of Welders Qualification Test, WPS No. Pl-llLS, indicated the appropriate qualification for welder No. J-10.
The record indicated welder qualification in all weld positions for both of the procedures, No. P8-18LS, Rev. 3 and No. DS-14LS, Rev. 3, used in the above fabrication. The Quarterly Welders Process Verification Log indicated that welder No. J-10's qualifi-cations were current.
The QC inspector of the above instrument lines was certified to. Level Il qualifications per MCCo's Training, Test Certifi-cation Record.
b.
The RIII inspector reviewed the installation records (isometric drawings No. NB-18, Rev. O, No. NB-19, Rev. O, No. NB-21, Rev.
O, and NB-22, Rev. 0) for the aforementioned redundant inst uren-tation lines.
The records identified the welds, welders, fit up verifications, component verifications, governing instal-lation documents, and the QC inspector.
The records were identifiable and retrievable.
The welding activities of the observed Vent Main Steam Syster c.
pipe were being perforced by welder No. F-35.
The MCCo Records of Welders Qualification Test, WPS No. P1-8LS dated January ll, 1978 and WPS No. Pl-11LS dated January 11, 1978 indicated the appropriate qualification for welder No. F-35.
The Quarterly Welders Process Verification Log indicated that welder No.
F-35's qualifications were current.
The Weld Data Report for the Vent Main Steam System weld was being accomplished in accordance with MCCo Standard Operating Procedure No. PC-17, Rev. 4.
No items of noncompliance were identified.
Exit In t e r vi e'. The inspector met eith licensee representatives (dencted in the Persons Contacted paragraph) at the conclusion of the inspection on November 9, 1978.
The ins; ector summarized the scope and findings of the inspection.
The licensee acknowledged the information.
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