IR 05000329/1980034
| ML20002D595 | |
| Person / Time | |
|---|---|
| Site: | Midland |
| Issue date: | 12/11/1980 |
| From: | Cook R, Knop R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML20002D594 | List: |
| References | |
| 50-329-80-34, 50-330-80-35, NUDOCS 8101210533 | |
| Download: ML20002D595 (5) | |
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U.S. NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTICE AND ENTORCEMENT
REGION III
Report No. 50-329/80-34;50-330/80-35 Docket No. 50-329; 50-330 License No. CPPR-81; CPPR-82 Licensee: Consumers Power Company 1945 West Parnall Road Jackson, MI 49201 Facility Name: Midland Nuclear Power Plant, Units 1 and ?
Inspection At: Midland Site, Midland, MI Inspection Conducted: November 1-30, 1980 Inspector:
R. J. Cook
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R. C. Knop, Chief ProjectsSection I Inspection Summary Inspection on November 1-30. 1980 (Report Nos. 50-329/80-3h: 50-330/80-35)
Areas Inspected: Examinations for possible defects in diesel generator link rods; metal thickness requirements for HVAC fire dampers; systematic assess-ment of licensee performance (SALP); mounting of safety related power station transformers; changes in site QA management. This inspection effort involved a total of 35 inspector-hours by one NRC inspector.
Results: No items of noncompliance or deviations were identified.
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DETAIIS Persons Contacted Consumers Power Company Personnel D. Miller, Site Mbnager
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T. Cooke, Project Superintendent D. Turnbull, Site Project QA Superintendent
- H. Leonard, QAE Section Head D. Keating, IE&TV Section Head M. Schaeffer, QAE Electrical Supervisor D. Hendrix, QA Electrical E. Jones, QA Electrical M. DeWitt, QA Mechanical D. Martin, QA Mechanical Bechtel Power Cornoration Personnel R. Hollar, IE&TV Electrical Supervisor J. Hoekwater, Resident Civil Engineer Numerous other principal staff and personnel were contacted during the reporting period.
- Denotes those present during the exit interview conducted during the reporting period.
Functional or P ocram Areas Inspected t
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Transamerice Delaval. Inc.
10 CFR Part 21 Notification - Link Rod Defect During the reporting period, the licensee examined a second Midland Site diesel for evidence of shallow counterboring in the link rod.
The second diesel examined did not show evidence of shallow link rod counterboring. Neither of the two diesels examined to date have shown signs of counterbore discrepancies. The remaining two site diesels will be examined for potential link rod counterbore defects when the diesel engines undergo crankshaft deflection measurements.
Consumers Power Co. QA is maintaining an active involvement in per-forming these diesel engine inspections and has issued Nonconformance Report No. M-ol-9-o-069 2.
Heating. Ventilating and Air Conditioning (HVAC) System Fire Dampers In response to Consumers Power Co. Nonconformance Report No. M-ol-9-o-065 pertaining to material thickness discrepancies (reference NRC Inspection Report No. 50-329/80-31;50-330/80-32), the Zack Co. issued a letter i
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A dated October 24, 1980 to Bechtel Power Co. stating that the Ruskin Manufacturing Company had been consulted and that the Ruskin Manu-facturing Co. and the Zack Co. had determined that the thickness discrepancies do not constitute a " Substantial Safety Hazard." The letter further states, "Therefore, Ruskin and Zach Company do not perceive that a report of a 10 CFR part 21 violation is required."
In response to the Zack Co. letter, Consumers Power Co. issued a letter to Bechtel Power Co. (dated November 14,1980) stating that,
"Zack Co. and Ruskin, by providing the back-up data for their analy-sis of reportability, will allow Bechtel to evaluate and NPQAD to respond to the 50.55(e) reportability question." Furthermore, Consumers Power Co. issued an additional letter to Bechtel Power Corp.
(datedNovember 18,1980) which delinerces four QC Inspections and/or QA itemized requirements to " confirm that the fire dampers meet speci-fication requirements". This letter also addrer.ses documentation for required repair as an assurance for adequately performing any repairs.
The letter states that a separate section be incorporated into the Zack Co. QC Procedure MB-FQCP-5 pertaining to fire dampers.
No response to either of the above mentioned letters has been received by the licensee during the reporting period. Because of the sensi-of 10 CFR Part 21 and 10 CFR 50.55(e)y aspects under the provisions tivity pertaining to the reportabilit for design, testing, manufac-turing and installation defects noted in the fire dampers, this item is considered unresolved p nding further review and additional evalu-ations by the licensee.
(329/80-34-01;330/80-35-01)
Systematic Assessment of Licensee Performance (SALP) Meetings On November 3, 1980, the Resident Inspector attended meetings in the Regian III Offices for assessment of the licensee's performance. The results of these meetings were presented to the licensee at the Holiday Inn, Jer?. son, MI on November 24, 1980. The Resident Inspector also attendEl this meeting. A separate report documenting the NRC's assess-ment of the licensee's performance is being issued from the Regional Office.
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Mountinz of Safety Related Power Station Transformers During the reporting period, the licensee issued Nonconformance Report No. M-01-9-0-070 which addresses the adequacy of bolting used to mount power station transformers designated lx17, lx18, 2x17 and 2x18 located at the 614 ft. elevation of the Auxiliary Building. The vendor instal-lation instructions specify the use of ASTM A325 high strength or equivalent bolting material with the threads removed from the shear plane. However, the construction prints used for installation of the transforuer attachments (Drawing Nos. C-197 and C-184) specified using
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anchors of ASTM A36 asterial and permitted threads in the shear plane.
The transformers were mounted using the A36 material with one leg welded to the embed. Welding to the embed is permitted in lieu of bolting provided there is equivalency. Vendor seismic tests were per-formed using the high strength material.
Seismic calculations performed to substantiate the design use of A36 material as specified on drawing no. C-18h were reviewed by the Resident Inspector. These calculations showed that the allowable design shear strength for A36 bolting material embeded in 4000 psi concrete is 4.2 kips and 5.5 kips for tension based on Bechtel Corporation Specification
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C-306. The calculated applied shear and tensile load under seismic con-
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ditions was determined as 2.9 kips and 1 3 kips respectively. Review of the bases and criteria used for the design calculations indicated that the design had been deliberately evaluated in October,1977 The licensee, as part corrective action for their Nonconformance Report, is evaluating the large discrepancy between the strength requirements for the material specified by the vendor versus the strength of the material specified on the construction prints and which specification has precedence.
Changes in Site Management During the reporting period, Mr. D. M. Turnbull filled the position of Consumers Power Co. Site Project QA Superintendent which had been va-cated by Mr. J. L. Corley.
Mr. H. P. Leonard had been Acting Project QA Superintendent while awaiting the arrival of a replacement for Mr. Corley.
Unresolved Matters Unresolved items are matters about which more information is required in order to ascertain whether they are acceptable items, items of noncompli-ance, or deviations. One unresolved item disclosed during the inspection is discussed in Paragraph 2.
Exit Interview The Resident Inspector met with licensee representatives (denoted under Persons Contacted) on November 14, 1980. The inspector summarized the scope and findings of the inspection effort to date. The licensee acknow-ledged the findings reported herein.
Attachment: Preliminary Inspection Findings
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unresolved pending further review and cdditional evaluations.
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'~hesc preliminary inspection findings VC1 be reviewed by NAC Supervision /
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y. nsgesen; a: :he Region ;;; Office and they will correspond with you concernin; any enforcement action.
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