ML20104A117
| ML20104A117 | |
| Person / Time | |
|---|---|
| Site: | FitzPatrick  |
| Issue date: | 01/26/1979 |
| From: | Leonard J POWER AUTHORITY OF THE STATE OF NEW YORK (NEW YORK |
| To: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| JAFP-79-055, JAFP-79-55, NUDOCS 7902260084 | |
| Download: ML20104A117 (2) | |
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POWER AUTHop.lTY OF THE STATE OF NEW YORK i
JAME2 A. F: rzT* ATRICK NUCLEAR PowEn PLANT '
JOHN D. LEONARo JR.
P.O. box 41 Resu$ont Monager
. Lycormng, New York 1D January 26, 1979 ais.354.asso JAFP-79-055 Boyce H. Grier, Director inspection and Enforcement Division U. S. Nuclear Regulatory Comission Region 1 631 Park Avenue King of Prussia, Pennsylvania 19406
SUBJECT:
'1,& E Bulletin No. 78-14 Deterioration of Buna-N Components in Asco Solenoids
REFERENCES:
1)
General Electric Company SIL 128, Rev.1, Dated January 30, 1976 2)
General. Electric Company SIL 128, Rev. 1, Supplement'1, Dated August 28,.1978
DearMr.; brier:
'The FitzPatrick Plant Staff has reviewed the' application of
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Buna-N materials within the control rod drive hydraulle systeri as indicated in Bulletin 78-14, Refercances 1 and 2, and verified that the appIIestion of the Buna-N materials.Is~as described in References 1 ar.d 2.
The plant staff has not been able to determine with precision, i
the manufacture dates or the package dates.
However, based on records which Indicate the components were received at the plant site in mid-l 1970 and initially placed in service (energized) during February 1974, it is believed that 1969 is the probable packaging year.
In any case, t
it has 'sen at least nine (9) years since packaging.
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' The FitzPatrick Plant has, based on Reference 1,. replaced two-thirds of the scram pilot valve diaphragms during the past two years and plans to replace the remainder during the next scheduled refueling outage.
in _ addition, the plant also plans to replace the components listed in i
Reference 2 during the next scheduled refueling outage.
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.A January 26, 1979 Bovce H.
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SUBJECT:
I & E Bulletin No. 78-Ile WIth respect to scheduling of periodic replacement, the FitzPatrick Plant can not yet provide the Comission with a comitment.
Our indbility to make such.e comunitment at' this time, is based on a 1
General Electric Company study addressing the recomunended replacement schedule that he's. not yet been completed.
We believe the results of this study and its reconsnandations will be available by March of 1979.
and we will provide,the Consnission'with a proposed schedule for periodic.
maintencnce (inspection and replacement) within 60 days. of receipt of.
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the study.
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,as As a further point of Interest, with respectLto:a schedule.~
_v for replacement, the FItzPatrick Staff notes that the Nuclear Regulatory Connission has proposed a replacement Interval of 'not to exceed three (3) years based on the original issue of SIL 128 (March 31, 1975).
Revision 1 of SIL 128 (Reference 1) completely superseded the original issue and neither Revision 1 nor Revision 1, Supplement 1, make any mention of a
" minimum design life of three (3). years" associated with Buna-N materials.
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