ML20137L724

Responds to NRC Re Deficiencies Noted in Exo Sensors QA Insp Rept 99901015/85-01.Panels Reworked & Retested & Independent Lab Testing Performed on Other Exo Sensors Equipment

ML20137L724
Person / Time
Site:	Fermi
Issue date:	12/26/1985
From:	Jens W DETROIT EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
VP-85-0230, VP-85-230, NUDOCS 8601280069
Download: ML20137L724 (3)

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December 26, 1985 VP-85-0230 ngalTY M'JTIM

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Mr. James G. Keppler d(2-Regional Administrator jL ~' (1~

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Nuclear Regulatory Commission 3

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799 Roosevelt Road Glen Ellyn, Illinois 60137 IllE

Reference:

(1)

Fermi 2 NRC Docket No. 50-341 NRC License No. NPF-43 (2)

Letter, C.E.

Norelius to W.N.

Jens November 26, 1985 (Vendor Report No.

9990101 5/85-01)

Subject:

Eaulement Procured from Exo Sensors. Inc.

Reference 2 transmitted an NRC Vendor Programs Branch Inspection Report which describes a number of deficiencies in the implementation of the Exo Sensors QA Program.

These deficiencies were identified by an NRC inspection in May of 1985 to investigate allegations regarding the Exo Sensors QA Program.

This letter describes the measures taken by Detroit Edison, both before and after shipment of the subject equipment to Fermi 2, which provide assurance that the installed equipment-is acceptable for its intended.use.

In summary, Fermi 2 had experienced difficulty with this vendor before the NRC inspection in May and had adopted a strategy of direct control to provide assurance that the Exo Sensors units conform with contract requirements.

Our engineering staff has spent a total of 28 mandays at the Emo Sensors facility, QA spent 5 mandays, and our purchasing inspectors spent a total of 22 mandays in 9 separate inspection visits.

Of the 55 days, 36 were before the NRC visit in May of 1985.

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Mr. James C. Keppler December 26, 1985 VP-85-0230 4

Page 2 The shipment of our panels was delayed several months due to defects noted by our inspectors and the required re-work and i

re-test.

Engineering documents were rejected and returned i

for additional work.

In some cases Edison engineering performed detailed reviews of documents at the'Exo Sensors f acility and personally explained our concerns to Exo Sensors j

management.

To substantiate some environmental qualifications. Edison has performed independent laboratory testing and in one case a component was eliminated and in-plant wiring was modified to provide motor-start from a separate system.

When the panels were shipped to Fermi 2 documentation was still not totally acceptable so partial payment was withheld and the units were placed on conditional release until all questions were resolved.

The units were declared fully acceptable on November 23, 1985 following acceptance of all documentation and successful preoperational functional test.

In reviewing the nonconformances identified in the NRC's

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report to Exo Sensors, we feel that the direct control

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strategy exercised by Detroit Edison and the functional tests i

conducted both before shipment and again after installation i

j provide adequate assurance that these units are acceptable for operation.

We have compiled an index of events I

(transactions, inspections. tests, meetings, significant document transmittals. etc.) that provide evidence of the extraordinary measures taken to assure conformity of these units.

i Continued acceptability will be maintained through Detroit Edison's QA program.

Currently. Detroit Edison is investigating a potential defect id en t i f i'e d to us by Exo Sensors on December 10 1985.

Resolution and any necessary j

repair work is being tracked via the Deviation Event / Report (DER) process.

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Mr. James G.

Keppler December 26, 1985

- VP-8 5 -0 2 3 0 Page 3 We trust this letter satisfactorily responds to your request.

If you have any questions regarding this matter, please contact Mr.' Joseph Conen. (313) 586-5083.

Sincerely, 7

d[Md-h([

cc:

P.M.

Byron M.

D.

Lynch G.

C.

Wright USNRC, Document Control Desk j

Washington, D.C.

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