IR 05000255/1983008
| ML20023D071 | |
| Person / Time | |
|---|---|
| Site: | Palisades  |
| Issue date: | 05/05/1983 |
| From: | Danielson D, Keating D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML20023D065 | List: |
| References | |
| 50-255-83-08, 50-255-83-8, NUDOCS 8305190183 | |
| Download: ML20023D071 (3) | |
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U.S. NUCLEAR REGULATORY COMMISSION
REGION III
Report No. 50-255/83-08(DE)
Docket No. 50-255 License No. DPR-20 Licensee: Consumers Power Company 212 West Michigan Avenue Jackson, M1 49201 Facility Name: Palisades Nuclear Generating Plant Inspection At: Palisades site, Covert, MI CPCo corporate office, Jackson, MI Inspection Conducted: March 28 and 29, 1983.
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Inspector:
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Approved By:
D. H. Danielson, Chief
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Materials & Processes Section Inspection Summary Inspection on March 28 and 29, 1983 (Report No. 50-255/83-08(DE))
Areas Inspected: Review support structure evaluations and analysis performed for the SIRW Tank (LER 83-06). The inspection involved a total of 20 hours2.314815e-4 days <br />0.00556 hours <br />3.306878e-5 weeks <br />7.61e-6 months <br /> on-site by one NRC inspector.
Results: No noncompliances or deviations were identified.
8305190183 830506 PDR ADOCK 05000
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DETAILS 1.
Persons Contacted Consumers Power Company
- R. Gilmore, Project Group Supervisor, Nuclear Section
- L.
Porter, Project Engineer, Nuclear Section
- P. Klein, Senior Civil Engineer E. Tiffany, Plant Safety Coordinator S. Dehnof, Plant Safety Officer Bechtel Corporation
- J. Dotson, Project Manager
- P. Goffas, Civil Group Supervisor
- J. McCarthy, Civil Engineer
- G. Tuveson, Civil - Staff Engineer 2.
Functional or Program Areas Inspected
' The purpose of this inspection was to review the support structure evaluations performed for the Safety Injection and Refueling Water (SIRW) Tank as documented in LER 83-06 dated February 17, 1983 and to review and evaluate the engineering analysis and proposed method of corrective action.
3.
Documents Reviewed-A review was performed.of the following documents:
Drawing C-109 Sheet 1, Revision 4
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Auxiliary Building Roof Plan at Elevation-649'-0.
Drawing C-115 Sheet 4, Revision 2
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Auxiliary Building Sections and Details Auxiliary Building SIRW Tank' Cellular Slab at Elevation 643-0'
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. Report RS-003-03 This review compared the actual slab shear stresses to the allowable
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values as specified in ACI Standard 318-63, " Building Code Requirements for Reinforced Concrete", dated June 1963 and to the requirements of the FSAR.
'An inspection conducted by the Region III specialist inspector and the resident inspector of the affected area revealed the conditions as identified and reported to Region III did in fact exist. There were a series of 3' x 3' square openings that extended through the main support beams. On the East side of the Auxiliary Building running in
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a North / South direction penetrating the main support beam on the center
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line of the'SIRW Tank and penetrating the main support' beams'of the cells immediately adjacent to the center line of the tank, one on the Scuth side and one on the North side,-are.three (3) openings. These openings-display cracks. running diagonally upward on an approximately 45 angle. All three'(3) openings display cracks at the corners that are approximately 1/16" wide and follow the joint between.the top of:the opening and the West side. The cracks at the same location on the East.
side of'the openings are not as severe.
A further review of the documents listed above is being performed. This is considered to be an open item and will be addressed in more depth at a future inspection.
(50-255/83-08-01(DE))
4.
Procedure Review The Architech/ Engineer is in the process of writing specific procedures for the repair and inspection of the openings identified above. These will be within the frame work of the existing procedures but will be directed to the specific method of repair for these openings.
It is expected that sixty (60) days vill be needed to develop and complete these procedures. These will be reviewed in depth at that time.
This item is considered an open item and will be reviewed further during a future inspection.
(50-255/83-08-02(DE))
5.
Exit Interview No formal exit interview was held. However, cognizant licensee and Architech/ Engineer personnel were present at a meeting on March 29, 1983, held at the licensee's corporate facility for the purpose discussion and review of problems and the methods considered to remedy the situation.
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