IR 05000369/1979017
| ML19289E970 | |
| Person / Time | |
|---|---|
| Site: | McGuire  |
| Issue date: | 03/20/1979 |
| From: | Cantrell F, Cottle W NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML19289E967 | List: |
| References | |
| 50-369-79-17, NUDOCS 7905290717 | |
| Download: ML19289E970 (4) | |
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Report No. : 50-369/79-17 Licensee: Duke Power Company 422 South Church Street Charlotte, North Carolina 28242 Facility Name: McGuire Nuclear Station Docket No. : 50-369 License No. : CPPR-83 Inspection at McGuire Site near Cornelius, North Carolina Inspector:
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m FrS. Cantrell, Acti'pg Section Chief, RONS Branch Date Signed SUMMARY Inspection on February 26-28, 1979 Areas Inspected This routine, unannounced inspection involved 20 inspector-hours onsite in the areas of hot functional testing activities and followup on unresolved and open items.
Results Of the areas inspected, no apparent items of noncompliance or deviations were identified.
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DETAILS 1.
Persons Contacted Licensee Employees
- W. M. McIntosh, Station Manager
- G. W. Cage, Superintendent of Operations
- T. C. McConnell, Superintendent of Technical Services
- J. W. Cox, Senior QA Engineer
- W. M. Sample, Technical Services Engineer
- D. E. Simmons, Assistant Erigineer G. A. Copp, Project and Licensing Engineer G. D. Gilbert, Operating Engineer Other licensee employees contacted included 3 operators.
- Attended exit interview.
2.
Exit Interview The inspection scope and findings were summarized on February 28, 1979 with those persons indicated in Paragraph I above.
Licensee Action on Previous Inspection Findings (Closed) Unresolved item (369/79-06-04): Failure to document periodic verification of working copies of OP/1/A/6100/11 and OP/1/A/6200/16.
The inspector reviewed the master file copies of these procedures, the initial verification documentation performed prior to the working copies being used, and verified that the working copies were in fact current revisions.
4.
Unresolved Items Unresolved items were not identified during this inspection.
5.
Status of Hot Functional Testing (HFT)
The inspector reviewed the remaining activities required to complete the "at temperature" portion of the HFT program. Major activities to be accomplished prior to cooldown included Pressurizer Pressure Relief Tank Functional Test, Steam Dump Operability Test, and Main Steam These activitfe; were Power Operated Relief Valve Operability Test.
scheduled to be completed and reactor coolant system cooldown commenced by March 3, 1979.
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-2-Significant discrepancies identified during IIFT included:
Inability to achieve design flowrate for excess letdown subsystem.
a.
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Pressurizer power operated relief valves mechanically binding.
Low frequency noise interference experienced on Barton Model 763 c.
transmitters (See paragraph 7).
d.
Excessive leakage of pressurizer spray valves.
Pressurizer power operated relief valves and atmosphere steam e.
dump valves all required modifications to actuators to permit valve operation.
The resolution of these discrepancies will be examined in future inspections (369/79-17-01).
The inspector examined approximately 50 hydraulic snubbers, pipe supports and restraints during at temperature testing on the main steam, main feedwater and auxiliary feedwater systems. Two apparent discrepancies were noted during the examination:
ISM-H29 Spring can appeared to be bottomed out.
a.
b.
ICA-245 Hanger installation to piping not completed.
These two discrepancies were discussed with licensee representatives and will be examined on a subsequent inspection (369/79-17-02).
No items of noncompliance or deviations were identified.
6.
Open Items (Closed) Open Item (369/78-12-01): Inadequate administrative guidance on control of test and measuring equipment. The inspector reviewed Revision 4 of Station Directive 2.3.0, " Control of Measuring and Test The provisions of Station Directive 2.3.0 and IP/0/B/3090/01 Equipment".
adequately address the requirement of Section 17.2.12 of the QA Topical Report.
7.
Independent Inspection Effort The inspector reviewed a problem identified during preoperational testing concerning low frequency noise interference on the output signal of Barton Model 763 transmitters. The transmitters apparently meet the technical purchase specifications for signal / noise ratio but the extremely low frequency of the noise (1 Hertz) has caused inter-nor7 7 7_}-
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Though all Barton Model 763 transmitters tested thus far exhibit the same characteristic, the interference has only been noted on pressurizer pressure instrument loops. The inspector discussed possible reporting requirements, Part 21 and Part 50.55 e, with licensee representatives.
Technical evaluation of the transmitter problem and the reportability of the problem was in process and will be examined on a subsequent inspection (369/79-17-03).
During a review of the problems experienced with the pressurizer power operated relief valves, the inspector noted an apparent discrepancy between the Valve Inservice Testing Program and the proposed Techn.' cal Specifications. Tha inservice program classifies these valves (INc3.'-3, INC34A, INC36A) as non-safety related with no testing requirements.
The proposed Technical Specifications, Section 4.4.9.3.1, require testing of these valves as ASME Category C valves. This was pointed out to licensee representatives and will be examined in a subsequent inspection (369/79-17-04).
No items of noncompliance or deviations were identified.
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