ML19317G044
| ML19317G044 | |
| Person / Time | |
|---|---|
| Site: | Rancho Seco |
| Issue date: | 01/20/1972 |
| From: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| To: | |
| Shared Package | |
| ML19317G034 | List: |
| References | |
| 50-312-71-05, 50-312-71-5, NUDOCS 8002210745 | |
| Download: ML19317G044 (3) | |
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Sacramento Municipal Utility District Docket No. 050-312 Certain activities under your construction p'ermit appear to be l'n noncompliance with AEC regulations as indicated below:
1.
10 CFR 50, Appendix B, Criterion XI, Test Control, requires in part
"...all testing 1 required to demons trated that... components will perform satisfactorily in service...is performed in accordance with written test procedures.which incorporate the... acceptance limits contained in applicable design documents".
Contrary to-the above requirement the manufacturer's procedures used to perform tests on the battery chargers for the 125-volt D-C system did not incorporate " acceptance limits".
2.
10 CFR 50, Appendix "B",
Criterion II, requires applicants to establish,
"...a quality assurance program which complies with the requirements of this appendix. This progran shall be documented by written policies, procedures, or instructions and shall be carried out throughout plant life in accordance with these policies".
SMUD Quality Assurance Procedure.No. 6
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requires Inspection Planning to be prepared for Construction Inspections on Class I items.
Contrary to the above, inspection plans were not prepared prior to 'the v
initiation of the following construction activities.
a.
Installation of the 4160-volt switch gear.
b.
Installation of the 125-volt D-C battery chargers.
c.
Construction of field errected tanks by Conseco.
3.h ILO CFR 50, Appendix B, Criterion V reads, " Activities affecting quality
[lshallbeprescribedbydocumentedinstructions, procedures,ordrawings
,of a type appropriate to the circumstances and shall be accomplished in
!accordance with these instructions, procedures or drawings.
Ins truc tions,
q!
b l procedures or drawings shall include appropriate quantitative or
'i qualitative acceptance criteria for determining that important activities
- have been satisfactorily accomplished."
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! Contrary-totherequirementsofthiscriterion, the QC manual used by
- Conseco, constructor of the Class I field erected tanks, failed to reference
- or. provide written instructions or procedures to specifically control dye
! penetrant testing, or the handling, reporting and resolution of identified
! conditions adverse to quality such as failures, malfunctions, deficiencies, deviations, defective material and equipment, and nonconformance items as
- required to implement the provisions of Criteria XV and XVI.
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4.
10 CFR 50, Appendix B, Criterion IX reads, " Measures shall be established to assure that.special processes, including welding, heat treating, and nondestructive testing, are controlled and accomplished by qualified personnel using qualified procedures in accordance with applicable codes, standards, specifications, criteria and other special requirements."
Pursuant to this criterion,' a requirement has been established in the Conseco QC program that " welding operations shall be audited to assure conformance to the applicable procedure. The'results of audits to be logged in the inspection planning sheet."
Contrary to this requirement, at the time of the inspection, audits of welding operations had apparently been neglected in that the designated records did not include the results or any reference to such audits.
5.
10 CFR 50, Appendix B, Criterion XVII reads in part, " Sufficient records shall be maintained to furnish evidence of activities affecting quality.
The records shall include at least the following:... inspections, tes ts, audits, monitoring of work performance... Inspection and test records shall as a minimum, identify the inspector or data recorder, the results, the acceptability, and action taken in connection with any deficiencies noted.
Consistent with applicable regulatory requirements, the applicant shall establish requirements concerning record retention, such as duration, location, and assigned responsibility."
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Contrary to the requirements of this Criterion sufficient records were not s
being maintained by Conseco in the following areas for work governing the construction of field erected tanks.
Performed dye penetrant tests.
a.
b.
Visual inspections performed by the Conseco QC inspector which included weld fitups, root passes, and weld filler material holding ovens..
In addition, the program did not require that inspection and tcat records identify the inspector or data r ecorder who performed a particular
' : inspection or test; nor does the program establish requirements as to which records are to be retained and by whom.
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-N COMPLIANCE MONTHLY REPORT FOR DECEMEER 1971 sl Sacramento Municipal Utility District (Rancho Seco) - An inspection was performed on December 13-17 to review the im;51ementation of.the QA Program.
Noncompliance involving implementation of the QA-QC program for the construction of site-fabricated pressure. vessels and for the installation-of-electrical equipment was observed.
A lettar concerning these matters will be sent to the licensee.
SMUD has' examined--the program for the measurement of valve
. wall. thicknesses.of all of the suppliers of Class I valves at Rancho Seco.
The only valves found to be deficient (thin walled) were those supplied by Velan Engineering Company, Montreal,
' Quebec, Canada.
e While examining the valves it was also discovered that the Velan valves have undersized valve seats (i.e., 14-inch Q
valves have a 10 5-inch waterway bore diameter, and 10-inch valves have a 6-inch waterway bore diameter) and'are there-fore subj ect. to. a larger-than-expected pressure drop.
System analyses have shown a need to reject some of the valves.
This problem is currently under review by the licensee.
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