ML20055A560: Difference between revisions

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TIIB CINCINNATI GAS & ELECTRIC COMPANY                                     ss   '
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TIIB CINCINNATI GAS & ELECTRIC COMPANY ss '
CINCINNATI. OHIO 4 52ol July 8, 1982 QA-1855 C. A. BORG M AN N SENeOR VICE FRESIDENT E
CINCINNATI. OHIO 4 52ol July 8, 1982 QA-1855 C. A. BORG M AN N SENeOR VICE FRESIDENT E
U. S. Nuclear Regulatory Commission Region III 799 Roosevelt Road Glen Ellyn, Illinois 60137 Attention:       Mr. J. G. Keppler Regional Administrator RE:   WM. H. ZIMMER NUCLEAR POWER STATION UNIT 1 10CFR50.55(e) - ITEM M ANCHOR-DARLING VALVES WITH ANTI-ROTATION DEVICES - DOCKET No. 50-358, CONSTRUCTION PERMIT NO. CPPR-88, W.O. #57300 JOB E-5590 FILE NO. NRC-8, M-42 Gentlemen:
U. S. Nuclear Regulatory Commission Region III 799 Roosevelt Road Glen Ellyn, Illinois 60137 Attention:
Mr. J. G. Keppler Regional Administrator RE:
WM. H. ZIMMER NUCLEAR POWER STATION UNIT 1 10CFR50.55(e) - ITEM M ANCHOR-DARLING VALVES WITH ANTI-ROTATION DEVICES - DOCKET No. 50-358, CONSTRUCTION PERMIT NO. CPPR-88, W.O. #57300 JOB E-5590 FILE NO. NRC-8, M-42 Gentlemen:
This letter constitutes an interim report concerning the subject condition initially reported to the Commission under the requirements of 10CFR50.55(e).
This letter constitutes an interim report concerning the subject condition initially reported to the Commission under the requirements of 10CFR50.55(e).
CG&E Nonconformance Report #0-NPD-82-2140-E was generated which noted that motor operated Anchor-Darling valves with anti-rotational devices were subject to operational failure if the set screw holding the stem collar in place should loosen.
CG&E Nonconformance Report #0-NPD-82-2140-E was generated which noted that motor operated Anchor-Darling valves with anti-rotational devices were subject to operational failure if the set screw holding the stem collar in place should loosen.
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The CG&E Nuclear Production Department is presently considering mea:sures for preventing such an occurrence. Among the corrective actions being considered is the staking of the set screw. A final determination of action to be taken will be made by August 31, 1982, at which time a final report will be suhnitted.
The CG&E Nuclear Production Department is presently considering mea:sures for preventing such an occurrence. Among the corrective actions being considered is the staking of the set screw. A final determination of action to be taken will be made by August 31, 1982, at which time a final report will be suhnitted.
We trust the above will be found acceptable as an interim report under 10CFR50.55(e).
We trust the above will be found acceptable as an interim report under 10CFR50.55(e).
Very truly yours, 8207190161 82070s                         THE CINCINNATI GAS & ELECTRIC COMPANY DR ADOCK 05000358 PDR             By h E. A. rgmann Senior Vice President                                         q FKP:as                                                                                       k\
Very truly yours, 8207190161 82070s THE CINCINNATI GAS & ELECTRIC COMPANY DR ADOCK 05000358 PDR By h E. A.
cc: NRC Office of Inspection & Enforcement                                                 /
rgmann Senior Vice President qk\\
Washington, D.C. 2055 NRC Senior Resident Inspector Attn: W. F. Christianson                                         JUl. I 2 7982
FKP:as
__ _  --              .__}}
/
cc: NRC Office of Inspection & Enforcement Washington, D.C.
2055 NRC Senior Resident Inspector JUl. I 2 7982 Attn:
W. F. Christianson
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Latest revision as of 16:16, 17 December 2024

Interim Part 21 Rept Concerning Possible Failure of Motor Operator Anchor Darling Valves w/anti-rotation Devices If Set Screw on Stem Collar Loosens.Corrective Actions Being Considered.Final Rept to Be Submitted by 820831
ML20055A560
Person / Time
Site: Zimmer
Issue date: 07/08/1982
From: Borgmann E
CINCINNATI GAS & ELECTRIC CO.
To: James Keppler
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
REF-PT21-82-676-000 10CFR-50.55E, PT21-82-676, PT21-82-676-000, QA-1855, NUDOCS 8207190161
Download: ML20055A560 (1)


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TIIB CINCINNATI GAS & ELECTRIC COMPANY ss '

CINCINNATI. OHIO 4 52ol July 8, 1982 QA-1855 C. A. BORG M AN N SENeOR VICE FRESIDENT E

U. S. Nuclear Regulatory Commission Region III 799 Roosevelt Road Glen Ellyn, Illinois 60137 Attention:

Mr. J. G. Keppler Regional Administrator RE:

WM. H. ZIMMER NUCLEAR POWER STATION UNIT 1 10CFR50.55(e) - ITEM M ANCHOR-DARLING VALVES WITH ANTI-ROTATION DEVICES - DOCKET No. 50-358, CONSTRUCTION PERMIT NO. CPPR-88, W.O. #57300 JOB E-5590 FILE NO. NRC-8, M-42 Gentlemen:

This letter constitutes an interim report concerning the subject condition initially reported to the Commission under the requirements of 10CFR50.55(e).

CG&E Nonconformance Report #0-NPD-82-2140-E was generated which noted that motor operated Anchor-Darling valves with anti-rotational devices were subject to operational failure if the set screw holding the stem collar in place should loosen.

An engineering evaluation has determined that because this con-dition could potentially affect the safety of operations, this item is considered reportable.

The CG&E Nuclear Production Department is presently considering mea:sures for preventing such an occurrence. Among the corrective actions being considered is the staking of the set screw. A final determination of action to be taken will be made by August 31, 1982, at which time a final report will be suhnitted.

We trust the above will be found acceptable as an interim report under 10CFR50.55(e).

Very truly yours, 8207190161 82070s THE CINCINNATI GAS & ELECTRIC COMPANY DR ADOCK 05000358 PDR By h E. A.

rgmann Senior Vice President qk\\

FKP:as

/

cc: NRC Office of Inspection & Enforcement Washington, D.C.

2055 NRC Senior Resident Inspector JUl. I 2 7982 Attn:

W. F. Christianson

.__