ML20197F669
| ML20197F669 | |
| Person / Time | |
|---|---|
| Issue date: | 05/07/1986 |
| From: | Fox E NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| To: | AFFILIATION NOT ASSIGNED |
| References | |
| REF-QA-99900779 NUDOCS 8605150644 | |
| Download: ML20197F669 (1) | |
Text
May 7, 1986 Occupant 38 S.W. Crescent Drive Mount Vernon, Illinois 62864
Dear Sir / Madam:
This letter confirms our telephone conversation and the message I left for you on April 11, 1986. Collect calls are accepted at our Operations Center (Area Code 202 or 301 - 951-0550) located in Bethesda, Maryland; the center is staffed 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> a day. Additionally, your concern and those of others are tracked within the U.S. Nuclear Regulatory Commission (NRC) Allegation Management System. As I stated to you that Reference Number is IE-85-A-0025.
Preliminary inspections of the company in question have been conducted; these reports are enclosed.
We have not completed our review into all of the matters concerning this company, however they are being addressed by appropriate NRC offices.
As soon as we have resolved all of the concerns, we will provide you with the results of our findings or an interim status report.
Until that time, we appreciate your interest and assistance in this matter.
90 not hesitate to write or call if you have additional information or questions concerning the company or the above.
You may contact me or Barry Zalcman (Inspection and Enforcement Office Allegation Coordinator) at 301-492-4905.
Sincerely,
" Original Signed by" Edwin Fox Division of Inspection Programs Office of Inspection and Enforcement
Enclosure:
Inspection Reports DISTRIBUTION:
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July 1, 1985 Dicket No. 99900779/85-01 Nutherm International Incorporated 501 South Eleventh Street ATTN:
Mr. James S. Hanner Executive Vice President Mount Vernon, Illinois 62864
Dear Mr. Hanner:
This refers to the inspection conducted by Mr. J. J. Petrosino of this office on April 29, 1985, of your facility at Mount Vernon, Illinois and to the discussions of our findings with yourself and members of your staff at the conclusion of the inspection.
The purpu e of this inspection was to verify specific correspondence between tiJtherm International and its customers regarding Elma Engineering ferroresonant power supplies.
Areas examined during the inspection and our findings are discussed in the enclosed report.
Within these areas, the inspection consisted of an examination of records, interviews with personnel, and observations by the inspector.
In accordance with 10 CFR 2.790 of the Commission's regulations, a copy of this letter and the enclosed inspection report will be placed in the NRC's Public Document Room.
Should you have any questions concerning this inspection, we will be pleased to discuss them with you.
Sincer ly, 7
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Gary 4 >Zech, ief Vendor Program Branch Division of Quality Assurance, Vendor, and Technical Training Center Programs Office of Inspection and Enforcement
Enclosure:
1.
Appendix A - Inspection Report No. 99900779/85-01 2.
Appendix B - Inspection Data Sheet (1 page)
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ORGANIZATION: NUTHERM INTERNATIONAL INCORPORATED (NI)
MOUNT VERNON, ILLIN0IS REPORT INSPECTION INSPECTION NO.: 99900779/85-01 DATE(S): 4/29/85 ON-SITE HOURS:
6 00RRESPONDENCE ADDRESS: Nutherm International Incorporated ATTN: Mr. James S. Hanner Executive Vice President 501 South Eleventh Street Mount Vernon, Illinois 62864 ORGANIZATIONAL CONTACT: Mr. Ronald J. Heifner, QA Manager TELEPHONE NUMBER:
(618) 244-6000 PRINCIPAL PRODUCT: Electrical Control Components and Systems NUCLEAR INDUSTRY ACTIVITY: 99% of total work is nuclear related, which includes military, comercial power, and research work. Current in house job orders are Beaver Valley 2 (NI-1323), Nine Mile Point (NI-1344), and Knolls Atomic (NI-1372/1385).
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ASSIGNED INSPECTOR:
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Petrosino, Reactive Inspection Section (RIS')/ Date OTHERINSPECTOR(S):
APPROVED BY:
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E. W. MerschoffArief, RIS, Vendor Program Branch Date
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INSPECTION BASES AND SCOPE:
A.
BASES:
B.
SCOPE:
1.
Obtain vendor-licensee correspondence regarding Elma Engineering Incorporated (EEI) ferroresonant power supplies (FPS).
2.
Verify where each EEI-FPS was shipped and the total number of units at each location.
PLANT SITE APPLICABILITY:
Pilgrim (50-293); Browns Ferry (50-259/260/296);
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Clinton(50-461).
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PDR GA999'EffVNUTH 99900779 PDR
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ORGANIZATION: NUTHERM INTERNATIONAL INCORPORATED MOUNT VERNON, ILLINOIS REPORT INSPECTION NO_*Q9900779/85-01 RESULTS:
PAGE 2 of 3 A.
Inspection Issues:
1.
Verification of correspondence regarding Nutherm International (NI) customers who were shipped safety-related EEI ferroresonant power supplies regarding potential problems with these power supplies.
2.
Obtain information regarding the total number of EEI - ferroresonant power supply units shipped.
B.
Inspection Findings:
1.
Three (3) commercial nuclear plants were supplied EEI - FPS units by NI. Correspondence was transmitted by NI to each customer who pur-chased the EEI units regarding the EEI power supply problems.
Additionally.each customer acknowledged receipt of these NI notifications.
2.
A total of fifty one (51) safety-related EEI power supplies were purchased by N!. Of that total, thirty two (32) units were shipped to Browns Ferry station, four (4) units went to Clinton station, and eight (8) units went to Pilgrim station. NI retained seven (7) units for equipment qualification testing.
C.
Supplemental Information:
Recently, Elma Engineering Incorporated Ferroresonant power supply units were identified as having two potentially generic problems.
NRC-IE Information Notice Number 83-04 discussed the loss of output of EEI's FPS due to overheating and subsequent capacitor failure.
EEI reported to the NRC that their testing concluded that improper vertical mounting of FPS units could result in capacitor overheating and sub-sequent degraded operation. Additionally, FPS units utilized in a parallel load sharing application will have a greater heat output and therefore will increase the FPS unit enclosure temperature.
Recom-mendations of EEI were to perform analyses for load sharing, adequate cooling and efficiency at low loads.
The second potentially generic problem was identified in a 10 CFR part 21 notification letter submitted by NI. Deficiencies identified were found by remosing a mounting plate which enclosed the electrical wire connection area.
Inadequate electrical wire soldering connections and a leaking oil filled capacitor were observed by NI.
Routine receipt inspections by NI had not included removing the mounting plate to examine electfical wire connections. This was the subject' of a nonconformance issued to Nutherm in Inspection Report 99900779/84-01.
ORGANIZATION:
NUTHERM INTERNATIONAL INCORPORATED MOUNT VERNON, ILLINOIS REPORT INSPECTION NO.:99900779/85-01 RESULTS:
PAGE 3 of 3 D.
Persons Contacted:
James S. Hanner - Executive Vice President - NI Bill E. Ellis - Quality Assurance Engineer - NI Ronald J. Heifner - Quality Assurance Manager - NI e
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