ML19350C929
| ML19350C929 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek |
| Issue date: | 03/20/1981 |
| From: | Keimig R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | Finfrock I JERSEY CENTRAL POWER & LIGHT CO. |
| References | |
| IEC-77-04, IEC-77-09, IEC-77-4, NUDOCS 8104100336 | |
| Download: ML19350C929 (2) | |
See also: IR 05000219/1981006
Text
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NUCLCAR REGULAFORY COMMISSION
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KING OF PRUSSIA, PENNSYLVANIA 19406
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N 2 0 1981
Docket io. 50-219
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Jersey Central Power and Light Company
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ATTN: Mr. Ivan R. Finfrock, Jr.
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Vice President
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Oyster Creek Nuclear Generating Station
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P.O. Box 388
Forked River, New Jersey 08731
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Gentlemen:
This refers to the discussions held among Messrs. T. Tipton, J. Knubel, and
J. Chardos of your staff and Messrs. E. Greenman and L. Briggs of this office
en March 10, 1981 at the Jersey Central Pcwer and Light Company Offices in
Morristown, New Jersey, during our inspection No. 50-219/81-06. The findings
of this inspection will be documented in IE Inspection Report No. 50-219/81-06.
Among the subjects discussed were:
(1) your engineering evaluation of ITT
Barten Model 288A snap action switches and recurrent setpoint drift problems
which have resulted following the installation of these switches;
(2)your
engineering efforts to resolve a Standby Liquid Control (SBLC) System fuse
coordination study previously addressed in IE Circular 77-09; and, (3) reso-
lution of loose locking nuts on limitorque valve operators previously addressed
With regard to the foregoing, we understand that you are taking the following
actions:
1.
ITT Barton Model 288A, Setpoint Drift Problems:
a.
An I&C engineer will be assigned to develop and monitor a testing
program to:
-- Review and revise, as necessary, calibration procedures and techni-
ques to obtain the most accurate instrument setpoints possible;
-- Determine the time frame for sensor drift (e.g., 1 day, 1 week,
1 month) including plots for those instruments which have a ten-
dency to drift; and,
-- Detennine if a more conservative setpoint can be used to account
for observed drift,
b.
Conduct testing and correlate results for NRC review by May 19, 1981.
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Jersey Central Power and Light
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MAR 2 01981
Company
c.
Develop trend analysis for existing and future LER's to facilitate
detection of problems of a generic and/or repetitive nature.
2.
Standby Liquid Control System Fuse Coordination Study (IEC 77-09):
-- Complete a Technical Functions Division engineering evaluation and
installation of necessary modifications to insure correct fuse coordi-
nation prior to restart after the April 1981 outage.
3.
Loose Locking Nuts on Limitorque Operators (IEC 79-04):
a.
Conduct an inspection of accessible limitorque operators prior to the
scheduled April 1981 outage,
b.
Conduct an inspection of all valve operators, not inspected in 3.a.
above, prior to restart from the April 1981 outage.
If our understanding of your planned actions as described above is not in
accordance with the actual plans and actions being implemented, please contact
this office by telephone and in writing within 7 days.
Sincerely,
f
ard R. K 1 mig, Chi
Reactor Projects Branch 2
Division of Resident and Project
Inspection
cc:
M. Laggart, Licensing Supervisor
J. Knubel, BWR Licensing Manager