IR 05000373/1979026
| ML19208B586 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 07/17/1979 |
| From: | Naidu K, Neisler J, Williams C NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML19208B584 | List: |
| References | |
| 50-373-79-26, 50-374-79-18, NUDOCS 7909210037 | |
| Download: ML19208B586 (7) | |
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U.S. NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT
REGION III
Report No.
50-373/79-26; 50-374/79-18 Docket No.
50-373; 50-374 License No.
CPPR-99; CPPR-100 Licensee:
Commonwealth Edison Company P.O. Box 767 Chicago, IL 60690 Facility Name:
La Salle County Station, Units 1 and 2 Inspection At:
La Salle County Station, Marseilles, IL Inspection Conducted: June 27 and 28, 1979 o
Inspectors:
K. R. Naidu I
7 !n b5 f( a s da J. H. Neisler
7- / 3-7 Y Approved By:
C.
iams, Acting Chief 7-/f-7f
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Projects Section 2
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Inspection Summary Inspection on June 27-28, 1979 (Report No. 50-373/79-26; 50-374/79-18 Areas Inspected:
Licensee's response to Inspection and Enforcement Bulletins. Activities relative to HVAC systems installation. Activities relative to the installation of Category I pipe restraints.
Follow-up inspection of licensee's actions on previously identified items. The inspection involved 24 inspector-hours on site by two NRC inspectors.
Results:
Of the four areas inspected, no apparent items of noncompliance were identified in three areas. One noncompliance was identified in one (infraction - inaccurate procedure requirements).
area a &nt'n a a u?.. J 4 7909210033
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DETAILS
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Persons Contacted Principal Licensee Personnel
- L. J. Burke, Site Project Superintendent
- R. T. Rose, Project Structural Engineer
- G. E. Groth, Station Construction
- L. J. Tapella, QA Engineer
- A. Mayhan, QA Engineer
- W.
J. Groszko, Station Construction
- T. E. Quaka, Site Quality Assurance Supervisor
- J. Dierbeck, Field Engineer
- D.
A. Johnson, Station Construction
- K. W. Steele, Lead Electrical Engineer
- M. E. Lohman, Field Engineer
- D. J. Skoza, QA Engineer
- B.
J. McAndrew, Station Construction Contractor and Other Personnel
- R. C. Shulz, Morrison Construction Co., QC Supervisor
- J. Dowalo, CONAM, Project Managet M. Wherry, Morrison Construction Co., QC
- E. R. Kurtz, Sargent and Lundy
- R. E. Spencer, GE Site Manager
- M. R. Dougherty, Walsh Construction Co., QA Supervisor
- C. Baumgardner, Zack Co.
- R. L. Wilson, Zack Co, Quality Control
- R. M. Lundgren, HP Foley Company
- Denotes personnel attending exit interview.
Licensee Action on Previously Identified Items (Closed) Noncompliance (373/79-17-02; 374/79-11-02): Failure to assure adequate quality requirements for safety related group.
Certificates of conformance are on site stating that Master Builders' EMBECO 636 grout lot numbers BQ269, BX049, DY137B, DY287A, DY297A, DZ127B, DZ027A, DQ108B, DV088D, DV098B, DR189D, DR199B, DR209A, DR239B, and DQ079B geet Corps of Engineers specifications No. 588-76 for Expansive Grout. According to Walsh QC reports, the grout used for the KWU quencher bolts was from lot No. DR209A. This item is closed.
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(0 pen) Unresolved Item (373/79-13-15):
Indoctrination of Zack (HVAC
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contractor) QC inspectors and CECO audit on Zack installed hangers. The inspector reviewed the action taken by CECO and determined it to be incomplete.
See Paragraph 4.c for details.
(Closed) Unresolved (373/79-18-01; 374/79-07-01):
It was identified that several plates were welded to the containment liner plate sections where there were no embedded reinic cements. The inspector selected three attachments in Unit I conta
.ent and verified the adequacy of the reinforcements.
The following are the results:
Attachment of shock arrestor assembly model PSA-10-PN-1801103-07 as a.
shown on drawing M0 9-MS04-11495 at approximate elevation 749' 6" azimuth 35 25'.
The relevant Chicago Bridge and Iron (CBI) drawings 430 Revision 3 and 429 Revision 2 detail F shows that Nelson Studs were attached behind the 1/2" liner plate to provide reinforcement.
This reinforcement appears to be adequate.
b.
Attachment,of W12x22 hoist bracket at approximate elevation 748'-8",
azimuth 38 as shown on drawing M-48 sheet 3 of 4 CBI drawings 430 Revision 3 and 429 Revision 2 shows that the 1/2" thick liner plate has 7/8" x 6-3/6" Nelson studs reinforcements. This attachment appears to be adequate.
Attachment of 9" x 9" x 1/4" plate at approximate elevation 744'-10" c.
and azimuth 102.
CBI drawing 1-P Revision 4 shows that the liner plate is 1/4" thick with no reinforcements other than the standard angle iron sttribs.
CECO initiated a Field Change Request (FCR)
- 3214 dated March 18, 1979 (subsequent to the NRC inspection)
requesting belated approval of welding 9" x 9" x 1/4 plates per drawing S-335 to the liner plate, to support electrical fixtures such as lights and conduits.
S&L site representation approved the FCR.
(Closed) Unresolved Item (373/79-13-11):
Insulation of shielded instrument cable drain wires. Sargent and Lundy and SNED have issued instructions that cable drain wires will be insulated. Disposition of NCR 311 requires insulation of the instrument cable drain wires.
(0 pen) Unresolved Item (373/79-13-14):
Progress on the installation and inspection of instrument line hanger.
The inspector reviewed the system used by Morrison Construction Company (Morrison) to prepare and approve design drawings for the selection, fabrication and installation of instrument hangers. Typical hanger drawing No. M-1302 sheet 9 of 42. 'There was no indication that an independant review was performed to verify whether the drawings and instructions in S&L specification titled " Design, Assembly and Erection Guidelines for Supports of Miscellaneous 2-inch and smaller seismk piping and seismic instrument piping" were properly translated.
The license stated that he will review this matter.
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(Closed) Unresolved Item (373/79-13-16): On the Audits, performed by
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CECO on General Electric (GE) to verify GE's compliance to The Product Quality certification program, were not available on site.
CECO per-formed an audit of General Electric Company (GE), San Jose, during May 1-3, 1979. The following attributes relative to the Nuclear steam supply system panels were verified:
That the GE calculated (g) factors were based on the applicable a.
seismic response criteria.
b.
That all frequencies 1 to 33 HZ were considered in the seismic analysis and testing.
c.
That the upset and faulted conditions were considered.
d.
That a supporting qualification test existed when seismic qualification is performed.
CECO noted that no proof test existed for NSSS panels and that GE procedure No. 225A5766 Revision 6 did not require a proof test.
That seismic testing was performed with equipment mounted in a e.
manner that simulates the intended service mounting and that sufficient monitoring equipment was used to evaluate the performance of the equipment before, during and after the test.
In addition CECO verified whether GE has the required back-up documentation to support the Product Quality-Certification and that the documentation was properly reviewed and accepted by GE.
CECO identified no adverse findings in this area. The audits were legible and retrievable.
Program or Functional Areas Inspected 1.
Containment Structural Integrity Test Region III inspectors completed review of the Unit I containment Structural Integrity Test Final Report.
It was determined that the report contains the information delineated in Regulatory Guide 1.18.
2.
Feedwater Sparger Welds The inspector performed a visual inspection of the welds on three sections of the reactor feedwater sparger and on one of the feedwater sparger thermal sleeves. The inspector was informed by the licensee and NSSS representatives on site that further examination of feedwater sparger and thermal sleeves by the liquid penetrant examination method is scheduled prior to installation of the sparger and thermal sleeves.
No items of noncompliance or deviations were identified in this area.
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3.
Pipe Restraints
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The inspector reviewed portions of CECO Audit Report No.
a.
1-79-39 of CECO's audit of Morrison Construction Company (MCCO)
on May 31, June 1, and June 4, 1979. The inspector reviewed those portions of the audit pertaining to Morrison Procedures PC-16 " Erection of Supports and Restraints" and PC-23 " Utilization of Mechanical Revision Directive (MRD)."
b.
The inspector noted that there were no audit findings involving MCC0 procedure PC-16 " Erection of Supports and Restraints",
but, there were two findings involving PC-23 " Utilization of MRD".
The findings were (1) MCCO had not been obtaining the signature of the NSSS representative on the NSSS modifications as required by procedure and (2) MCCO QC did not review or audit MRDs issued on systems turned over for preoperational testing as required by PC-23.
Both these findings were in the process of being corrected at the time of the inspection.
c.
The inspector obtained the identification number of welders observed welding on pipe snubbers and restraints during walk through of the plant. Records on file at MCCO site office showed each of these welders to be qualified in accordance with Section IX of the ASME Code to weld under the procedure and in the process being used at the time he was observed by the inspector.
d.
A review of the qualification records of MCCOs welding QC inspectors showed each of the inspectors whose records were reviewed to be qualified to Level II in accordance with procedures and ASNT-TC-1A.
No items of noncompliance or deviations were identified in this area.
4.
Observations of HVAC Activities a.
During a previous inspection (373/79-13-15) the inspector identified unacceptable welds which were inspected and accepted.
The licensee agreed to audit Zack, the contractor's hanger weld inspection program. The licensee QA engineer inspected the welds on hangers installed at 761' floor elevation supporting the Reactor Building Exhaust System, and identified several unacceptable welds which were accepted by the Zack QC personnel.
The RIII inspector independently verified the acceptability of the welds, and identified additional unacceptable. welds. A missing shop stitch weld on the duct went undetected even though shop inspectors and receipt inspection were. performed.
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b.
The inspector identified the following deficiencies on the
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installed HVAC related equipment:
(1) Auxiliary Equipment Area Refrigeration unit identified as OVE 04CA at elevation 802' (partial slab). Bolts holding down the equipment were bent.
(2) Control Room HVAC Emergency Makeup Air Filtration Unit identified as OVC 015A at elevation 802' (partial slab).
Three nuts on the foundation bolts were loose.
(3) Control Room HVAC Condensing Fan identified as OVC 04CA at approximate elevation 802' (partial slab). The framing was not grouted.
c.
The licensee could not demonstrate that documentation was available to indicate the exact status of any equipment. The equipment installation activity involves Walsh, the civil contractor, and Morrison, the mechanical contractor in addition to Zack. The licensee stated that a checklist will be developed to indicate the status of the installed equipment.
As a result of the above findings, Site Project Superintendent and Site Quality Assurance Supervisor committed to the RIII inspector the following:
(1) CONAM, CECO's independent testing agency, will reinspect 100% of all work done by Zack in addition to work in progress.
(2) Zack's inspection personnel will be retrained and requali-fied to the satisfaction of CECO.
(3) Requalification of Zack's inspection personnel will be performed by Zack's Corporate QA Manager Mr. C. Eichstaedt, and will be monitored by CECO.
(4) CECO will audit Zack's shop to inspect the fabrication and inspection of safety related ductwork.
(5) CECO will reevaluate the effectiveness of Zack's inspec-tion program relative to the work performed in the past.
The above unresolved item (373/79-13-15) will be closed only after NRC inspectors verify the implementation of the above commitments during subsequent inspections and determine that the corrective action taken was adequate.
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d.
The inspector reviewed Zack's Weiding Procedure Specification
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(WPS) M-B-QCP22, Revision 1, dated January 21, 1978.
Paragraph 13-1 of the WPS states "WPQ shall be in accordance with Struc-tural Welding Code AWS DI.1-75, Section 2.7 and Section 5, Part B."
The licensee stated that WPS was "prequalified" and hence, no qualification tests were made. The inspector pointed out that Section 5, Part B did not apply to prequalified pro-cedures; Section 5, Part A is the relevant section. The inspector stated that even though the WPS received several layers of reviews and was approved, this discrepancy was not detected.
Inadequate control of special processes is considered an item of noncompliance and is contrary to the requirements of 10 CFR 50, Appendix B, Criterion IX.
This item is a deficiency.
(50-373/79-26-01; 50-374/79-18-01)
Exit Interview The inspectors met with licensee representatives at the conclusion of the inspection on June 28, 1979. The inspectors summarized the scope and findings of the inspection. The licensee acknowledged the findings reported herein.
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