ML18043A945
| ML18043A945 | |
| Person / Time | |
|---|---|
| Site: | Palisades  |
| Issue date: | 07/25/1979 |
| From: | Ziemann D Office of Nuclear Reactor Regulation |
| To: | Bixel D CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| References | |
| NUDOCS 7908160329 | |
| Download: ML18043A945 (5) | |
Text
~t~tF~n-NRC PDR Loe a 1 ; PDR JUL 2 5 1979 ORB 2 Rdg.
Docket No.: 50-255 Mr.' David Bixel*
.*Nuclear Licensing Administrator Consumers Power Company NRR Rdg SB Rdg.
CJHeltemes DEi senh.ut BGr.imes R Vollmer T Carter
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,p y~l DLZ i.emann Ringram OELD JMilJer RSilver
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. ACRS ( 16)
!Villalva 212 l*Jest_Micbigaii Avenue Jackson,-Michigan 49201 Denr Mr. Bixel:
. REGULATO.RY*UO.CKEJ.f.!LE-C.OPV.
SUB.JECT:
REQUEST FOR AODfTIONAL INFORMATION REGARDING IE *BULLETIN 79-068
- I He have* r~vim-Je~ your r.esponses to IE Sullefin 79-06.B for the Palisade$
Plant which were* transmitted by letters dated April 27, )lay 18 and June 5,_
1979.
Our review of your respol'!ses has led us to believe_ that you have a~
_general understanding of our *concerns arising.from* the TMI-2 incident in
_ relation t_o theJr implications -*to the operation of the Pal.isades Plant~
Nevertheless,_ we have discovered soine deficiencies in.your responses \\>Jhicn.
must be resolved* before ~1e issue"our safety evalµation for tt1e Palisa-des Plant. The tesolutiort of these deficiencies is ccintingen~ upon rec~iving
. complete and acceptable resprinse~_to th~ questions* iri_tnclqsur~ 1. * *;*
i As. a result of.o.ur continuing re~ieW. of the-TMI-2 incident.; we *may impose other *~orrective actions in addjtfon to those Jn IE Bulletin 79-068 *. In..
- the interim, if you n~ed any* cl&~ffication -Of the_ enclosed questiohs. please.
contact Mr~ I. Villalva, th~ staff~s ~ssigned project* manager for Bulletins and Orders involving C-E designed reactors.
Mr. Villalva ma¥ be reached on (301).492-77~5.
in order to ensure~ timely response to.the items in the enclosijr~. we..
previously tr.ansmitted to. you. a facsimile of said* enclosure via telephone.
, *Accordingly, \\1e request tha.t responses to the* Hems in* th~i,lenclosure. be
.} forwarded tQ this offi'ce approximately two weeks after receipt of the' enc.losure, *but no later tha,n August 10,.]979.
Enclosure:
- ~Si ~cere ly, O:rigiDal ~1gned bff-Dennis L. Ziemann, Chief dperat1ng Reactors Branch No. 2 Division* of Operating Reactors-
- See prev~ous ~ellowfor con~urrences. *
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Do~ket'No: 50-255 1i ' - r.\\r. Davi*d Bf xel _.
';Nuclear _Lf cef1sing Administrator Consumers Power Company 212 West Michigan Avenu~
Jackson, Michigan* 49201
Dear Mr. B_ixel:
-. SUB_JECT: - REQUEST FOR* ADDITIONAL INFO 1ATION REGARDING IE BULLETIN 79-068 We have reviewed your responses to I Bulletin 79-06B for.the Pali~fades* -
_Plant which were transmitted by let ers dated_April 27, May 18 and.June 5, 1979*.
Our review of your response has led us to believe that you have a general understanding of our cone ns_ arising from the'TMI-_2 incident in *
- relation to their implications t. the operation of the Palisades P.-lant~
Nevertheless, we have discovere some deficiencies in your responses which must be resolved before we iss our safety evaluation for the Palisades_
Plant. The resolution of thes dE;!ficienc1es is contingent upon receiving complete and acceptable respo ses to the questions** fo Enclosure 1.
-As a result of our contfnui g review-of the-n~I-2 incident, we may impose
- other corrective actions i addition to those in IE Bulletin 79-0GB.
In-the interim, ff you need ny cl~rification.of the enclosed questions, please contact Mr. I. Villalva, the staff's assigned project manager for Bulletins and Orders invdlvirig C-designed reactors *.
- Villalva may be reached on
. {301) 4.92-7745..
enclosed questions should be forwarded to us by Enclosur, :
Reques~' for Addit.iona1 Sf ncerely*; -
Dennis. L. Ziemann~ Chief Operating Reactors Branch. No. 2*
Division of Operating* Reactors
- Nile PORM 318 (9*76) NRCM 02M>
- U.8. OOVllRNMllNT PRINTING OP'P'ICI!: I eJI
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.=M~. *David Bf xel cc M. I. Mil 1 er, E~q~.1 r,e Isham, L1n~qln & a,~~le Suite 4200 One First National Plaza Chicago, Illinoi~ 60670
.Mr *. Paul A. Perry, Secretary Consumers Power Company 212 West Michigan Avenue.
Jackson, Michigan 49201 Judd L. Bacon, Esquire Consumers Power Company 212 West Michigan Avenue Jackson, Michigan 49201 Myron M. Cherry, Es qui* re
- Suite 4501 One IBM Plaza
- Chicago, Illinois 60611 Ka 1 amazoo Pub 1f c Lf brary 315 South Rose Street Kalamazoo, Michigan 49006.
- JUL 2 5 1979
REQUEST FOR ADDITIONAL INFORMATION REGARDING IE.BULLETIN NO.79-06B PALISADES PLANT DOCKET NO. 50-266 Enclosure l **
As.a result of our ~eview of the CPC responses tri Bulletin No.
79~06B, we find that the following additiona.l information is required.
The item numbers corre~pond to the bulletin action items and the rel~ted license~*s
- . response.
2.a State the procedure and instruments used to permit recognition of
- void formation in forced circulation mode and state the procedure and instruments to be used in natural circulation mode.
In addition we request that you revise procedures as ~ppropriate to include in-structions on the use of information from the source range neutron detectors and in-core thermocouples to recognize void formaticin.
- 3.
.It is our position, that unless a line is needed for safety.features or cooling capability, it should be isolated either manually or auto-
. mati ca lly upon initiation of safety injection.
For any lines not isolated upon automatic initiqtion of safety injection provide justi-
. fi cation that the line is needed to prevent degradation of needed safety features or cooling capability.
Provide your schedule for completion of the modification to the.
containment. cooling water.isolation function described in your letter of June 5, 1979.
Provide assurance that the modification will be done as *soon as practicable but no later than your suriimer 1979.
- refueling outage.
. ~:
4.
6.b
- .We request that a licensed operator who has direct responsibility for control and operation of all main and auxiliary feedwater systems be in the main control room at*all times.
We also request that the oper~tor assigned to this furiction will, at the time 6f the transient requiring such action, take immediate control of the main arid auxiliary feedwater systems, with no other concurrent responsibflities, until the steam generator levels retur~ to a stable condition.
Your response to Item 6.b appears to be inadequate_;
therefore, provide assurance that operating prqcedures will be modified to keep high pres~ufe injection and charging pumps in operation in a~tordance' with the criteria specified in item 6.b of the bulleti.ri and as clari-
. fi ed by the fo 11 owing statement:. *
"After 50F subcool i ng has been a*chi eved, termination of high pressure safety injection (HPI) operation prior to 20 minutes is only per-missible if it.has been determined that continued operation would
.. *'.t 2 -
result in an unsafe plant tondition, e.g., attaining pressure/tem~era-*
ture conditions that could jeopardize-vessel integrity or that could fi~.V.e. ~tl,~, potential for opening the PORVs or sa.fety v~J.v~.s ~9 ~§ t9 dis.t,h.Q.~~* water or a two-phase fluid consisting of :~.9JW.r.plJ@ ~te~m.
11 Provide a schedule for completion of the review of operating procedures incorporating such modifications as are necessary to comply*wit,h item 6.b of the bulletin.
- * ~
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Your response regarding periodic checks of positions of unsecured valves is not acceptable.
We request that you modify your procedures to require checks of the positibnsof unsecured valves monthly.
9.a Your letters of April 27 and June 5, 1979 indicate that you test redundant equipment and d6 not perform an enti~e redundant ~ystem check prior to removal of any safety related component from service.
Provide assurance that the testing performed acceptably assures that the redundant safety system will be operable.