ML20133D133

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Confirmatory Action Ltr CAL-RIII-85-10 Confirming 850716 Conversation Re Inadvertent Criticality Unrecognized During Reactor Startup on 850702.Actions to Be Taken by Util Listed
ML20133D133
Person / Time
Site: Fermi DTE Energy icon.png
Issue date: 07/16/1985
From: James Keppler
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To: Jens W
DETROIT EDISON CO.
References
CAL-RIII-85-10, NUDOCS 8507220113
Download: ML20133D133 (2)


Text

c CONFIRMATORY ACTION LETTER. CAL-RIII-85-10 y

JUL 161985 Docket No. 50-341 The Detroit Edison Company ATTN: Wayne H. Jens Vice President Nuclear Operations

'6400 North Dixie Highway

-Newport, MI 48166 Gentlemen:

This letter confirms the conversation on July 16, 1985, between Mr. E. Greenman of my staff and yourself related to the inadvertent criticality which occurred and went unrecognized during the reactor startup on July 2,1985. With regard to the matters discussed, we understand you have taken or will complete the following actions:

1. Provide to NRC Region III the results of your evaluation of the inadvertent

, criticality event of July 2, 1985, including corrective actions you have or will take. Include in your report the bases for not reporting this event to the NRC.

2. Assure that operations personr.el are properly trained and understand the applicable procedure (s) for subsequent control rod manipulations.
3. Assura that all operations personnel are aware of the event and its poten-tial significance.
4. Verify the operability and/or validity of the program for the the Rod Worth Minimizer.
5. Verify that training programs at your simulator are consistent with the current procedures being implemented at the facility.
6. After all actions required above are completed, obtain verbal concurrence from the NRC Region III Regional Administrator or his designee prior to exceeding 5% reactor power.

8507220i13 8507 g g ADOCK 050 PDR S

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CAL-RIII-85-10

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The Detroit Edison Company 2- JUL 16 IS85 Please let us know if your understanding differs from that set forth above.

" Original signed by A. Bert Davis" James G. Keppler' Regional Administrator cc: L. P. Bregni, Licensing Engineer P. A. Marquardt, Corporate Legal Department DMB/ Document Control Desk (RIDS)

Resident Inspector, RIII

. Ronald Callen, Michigan Public Service Commission Harry H. Voigt, Esq.

Nuclear Facilities and Environmental Monitoring Section RIII RIII RI RII RII Ch ssotimos/rr aher Norel s y D s/Keppler 07/16/85 t 7//p