IR 05000373/1981018
| ML19352A814 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 05/15/1981 |
| From: | Connaughton K, Jackiw I, Robinson D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML19352A813 | List: |
| References | |
| 50-373-81-18, NUDOCS 8106020172 | |
| Download: ML19352A814 (3) | |
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U.S. NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT
REGION III
Report No. 50-373/81-18 Docket No. 50-373 License No. CPPR-99 Licensee: Commonwealth Edison Company Post Office Box 767 Chicago, IL 60690 Facility Name: LaSalle County Station, Unit 1 Inspection At: LaSalle Site, Marseilles, IL Inspection Conducted: April 15, 20-23, 27-30, and March 1, 1981 N de b
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Inspectors:
K. A. Connau ' ton fIl4 I gi k
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. Lhk obinson
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Approved By:
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. Jac w Ac ing Chief
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Inspection Summary i
Inspection on April 15, 20-23, 27-30, and May 1, 1981 (Report No. 50-373/81-18)
Areas Inspected: Review of results of the following preoperational tests and system demonstrations: PT-VY-102, SD-WS-101, SD-WR-101, SD-CD-101, SD-CD-102, SD-CW-101, SD-CY-101, SD-FW-102, PT-NR-101A, PT-NR-101B, PT-NR-101C, PT-VJ-101 and PT-V0-101. The inspection involved 97 inspector-hours onsite by three NRC inspectors including zero inspector-hours during off-shifts.
Results: No items of noncompliance or deviations were identified.
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O DETAILS
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1.
Persons Contacted
- R. Holyoak, Plant Superintendent
- R. Bishop, Assistant Superintendent, Administrative
- C. Schroeder, Technical Staff Supervisor
- W. Huntington, Test Coordinator N. Carpenter, Technical Staff
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G. O'Connel, Technical Staff
- E. Boyd, Master Mechanic
- B. Stephenson, Project Manager
- Denotes those attending the exit interview of May 1, 1981.
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2.
Review of P.eoperational Test and System Demonstration Results l
The inspectort reviewed the following preoperational test and system demonstration results; PT-VY-102, PT-NR-101A, PT-NR-101B, PT-NR-101C, PT-VJ-101, PT-V0-101, SD-WS-101, SD-WR,101, SD-CD-101, SD-CD-102, SD-CW-101, SD-CY-101, and SD-FW-102. The inspectors also reviewed numerous deficiency reports and associated documentation for both
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resolved and unresolved test deficiencies. As a result of this review, the inspectors determined that: accepted test results were obtained, analyzed and reviewed in accordance with the licensee's approved startup program; changes to the test procedure were properly evaluated, justified, reviewed and approved; and test deficiencies l
were properly identified.
For test deficiencies that had been resolved prior to this inspection, the inspectors determined that:
the resolution included review and approval of corrective action taken, assessment of the deficiencies'
impact on test results and satisfactory performance of retesting, as determined necessary.
For those deficiencies which remained unresolvea at the time of this I
inspection, the inspectors determined that, where specified, planned
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corrective action appeared adequate and that the licensee had iden-l tified those deficiencies that are required to be resolved prior to l
fuel load. The following open items pertain to preoperational tests or system demonstrations which contain unresolved deficiencies that must be resolved prior to fuel load. These items will remain open until each deficiency listed for a given item is resolvcd or it is determined, with the inspector's concurrence, that resolution prior to fuel load is not required.
l (Open) Open Item (373/81-18-01) Unresolved deficiencies: PT-NR-101A, l
" Source Range Monitor."
(0 pen) Open Item (373/81-18-02) Unresolved deficiencies: PT-NR-101B,
" Intermediate Range Monitor."
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e (Open) Open Item (373/81-18-03) Unresolved deficiencies: PT-NR-101C,
"L.P.R.M., A.P.R.M,-R.B.M."
i (0 pen) Open Item (373/81-18-04) Unresolved deficiencies:
PT-VJ-101,
" Shop H.V.A.C."
(Open) Open Item (373/81-18-05) Unresolved deficiencies:
PT-V0-101,
"Offgas Filter Building H.V.A.C."
(0 pen) Open Item (373/81-18-06) Unresolved deficiencies: PT-VY-102,
"C.S.C.S. Equipment Ventilation."
(0 pen) Open Item (373/81-18-07) Unresolved deficiencies: SD-CD-101,
" Condensate and Condensate Booster."
(0 pen) Open Item (373/81-18-08) Unresolved deficiencies; SD-CD-102,
" Condenser and Auxiliaries."
(Oper) Open Item (373/81-18-09) Unresolved deficiencies: SD-FW-102,
"Feedwater Control."
(0 pen) Open Item (373/81-18-10) Unresolved deficiencies:
SD-WR-101,
" Reactor Building Closed Cooling Water."
(0 pen) Open Item (373/81-18-11) Unresolved deficiencies: SD-WS-101,
" Service Water."
3.
Service Water Pump Cavitation While reviewing the completed test package (SD-WS-101) for the service water system, the inspector noted on the coversheet, a handwritten summary that referenced "the service water pump cavitation problem." Nowhere in the test results or Summary and Evaluation of Test Results was there any mention of this problem.
During the performance of the system demonstration, the 1A and IB service water pumps were determined to be operating acceptably.
The prcblem was apparently discovered later when the 1A service water pump was out of service for bearing and bearing housing repairs. Also, cavitation noise was later found to be emanating from near or within service water pump 1B.
The inspector reviewed a letter from R. S. Kolflat to T. E. Watts, dated April 2, 1981, which discusses the problem and provides recommendations for deter-mining the cause of hydraulic instabilities at the impeller suction which are believed to be the source of the cavitation noise and associated damage to the pumps. The licensee is currently planning to install pressure gauges to measure pump inlet pressure, however, no plan to incorporate the recommendations of the letter of April 2, 1981, to methodically investigate, diagnose and correct the problem currently exists. This is an open item (373/81-18-12) pending resolution of the problem.
4.
Exit Interview The inspectors met with licensee representatives (denoted in Paragraph 1) on May 1, 1981 The inspector summarized the scope and findings of the inspection.
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