ML19325D480
| ML19325D480 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 10/17/1989 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML19325D478 | List: |
| References | |
| NUDOCS 8910240235 | |
| Download: ML19325D480 (2) | |
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- /.FETY EVALUATION B' Y THE OFFICE OF NUCLEAR REACTOR REGULATION c
q SUPPORTIhG AMENDMENT NO.124 TO FACILITY OPERATING LICEl4SE NO. DPR-72
< FLORIDA POWER CORPORATIOM, ET AL.
CRYSTAL RIVER UNIT NO. 3 AUCLEAR GENERATING PLAf'T DOCKET NO. 50-302 INTRODUCTION t.
E) lLtter cated July 26, 1989, Florict Pcwer Corporation (FFC or the ' licensee) requested an amercc.ent to the Technical Specifications (TS) apper.deo to Focility Operating License No. DPR-72 for the Crystal River Unit ho. 3 Nucitar Generating Plant (CR-3). The proposed amendment would add operability, action, ono surveillance requirements for-core exit thermocuuples and the Reactor coulant Inventory Tracking System (RCITS) to the TS.
EVALUATION Core exit thern.ocouples and the RCITS are post-accident mcnitoring instruinents.
Cure exic thermocouples nessure the temperatbre of reactor coolant as it leaves s
the core. This ten.perature is indicateo over a r6nge of 0 - 2500 degrees F.
The RCITS uses a differential pressure n.easurement to help operators determir.e L
the level of reactor coolant within the reactor vessel. ' This level is indicated I
cvet a range of 0 - 100's. These instruments, when used in conjunction with other available indications, can help an operatur attermine the status of the l
Reactor Ccolant System followir.g a postulated loss of coolant accident. This l
informatiorewill allow the operator to take prompt correctivt action to mitigate l
.the effect of the accident.
Currently, the TS do not address operability or surveillance requirements for l
ccre exit thermocouples or the RCITS.
The proposed amendment would add these systems to a list of instruirents that must be operable. Should one channel of the core exit theromocouple instrur.er.tation betone inoperable, the proposed TS would require that it be restored within 30 days.
If it were not restored within this period, the plant would have to bt; shut down.
Should one channel of the RCITS becorre inoperable, the proposed TS woulo allow the licensee 30 days tc scbmit a fernal. plan for restoring the inoperable channel.
Should both channels beccee inoperable, the proposec TS would require the licensee to resture at leest one channel within 7 days.
If the licensee were unable to meet this requirement, the TS would again require the plant to be shut dcwn.
The proposec amendment also addresses surveiilance requireraehts for cure exit thermocouples and the RCITS.
Spstifically, they require monthly channel checks for ccre exit thermocouples and channel colibration every 18 months for both core exit theron.occuples and the RCITS.
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!k Core exit thermocouples and the RCITS are currently installed at CR-3.
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- proposto TS will~ ensure that these instrurents are available, and the proposec surveillance requirements will ensure that the. instrucents are operable it i7 they are needed, t
o i' Lore exit trermocouples and the RCITS are part or the post-accident monitoring system requ ired by. NUREO-0737. Generic Letter 8?-37 proposed sample TS for this instrumentation. The licu.see's proposed changes are consistent with the W
reciuirements of both NUREG-0737 and Generic Letter 83-37.
The accition of these' TS ccnstitutes an additicr.al restriction and in t.o way decreases a neargin
. of. safety. Therefore, based on our review, the changes proposed in this request aru occeptable..
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ENVIRONMENTAL C0h5IDERATION This arr.er.dtrent involves e change in the instbilation or use of a facility component located within the restricted area as defined in 10 CFR Part 20 anc
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adds surveiLilance requirements. We have detern.ined that the an.endment involves no significant increase in the amountsi and no significant char $6 in the types, of any effluents thet may be released offsite, and that there is no significant increase in inoividual or cumulative occupational raciiation exposure.
The Commission has previously issued a proposed finding that this art.endment involves I
r.o significant hazards censideration and there has been no public couent on such finding. Accordinely, this emendment retts the eligibility criteria for categoricalsexclusion set forth in 10 CFR 51.02(c)(9).
Pursuant to 10 CFR El.22(b), no covironmental impact statement or enviror.1;ertal assessn.ent need i
be prepared in connection with the issuance of this amendment.
_g0hCLUS10t:
i Fu hav= ccocluded, baseo on the considerations oiscussed above, that:
(1) there is reasonable assurance that the health und safety of the will nt,t be endangered by operation in the proposed manner, and (2) public such activities will be conducted in con:pliance with the Cons.ission's regulations L
and' the issLonce of this emendment will not be inimical to the comon de'ense and security or to the health and safety of the public.
o C6ted: October 17, 1989 Principal Contributor:
G. Wunder i
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