ML17334A844
| ML17334A844 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 11/07/1984 |
| From: | Alexich M INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| AEP:NRC:068K, AEP:NRC:68K, NUDOCS 8411140304 | |
| Download: ML17334A844 (3) | |
Text
ACCE'.SION NUR FAC IL:50 315 50 316 AUTH ~ NAMZE ALEXICHRM ~ PE REC IP ~ NAME DENTONRH ~ RE REGULATORY iNFORMATION DISTRIBUTION SYS FM (RIDS)
- 8411140304 OUTDATE: 84/11/07 NOTAIZED:
NO DOCKET 0
Oonala CD Cook Nuclear Power PlantR Unit ii Indiana 8
05000315 Donald C.
Cook Nuclear Power P'lant< Unit 2< Indiana lt Od~
AUTHOR AFFILI ATION
'ndiana lt Michigan Electric Co ~
HEC IPIENl'FF ILIATION Office of Nuclear Reactor Regulationi l;irector,
SUBJECT:
Advises that Phase A containment isolation signal would have to be reset to permit safe opening of four containment isolation valves that supply instrument air to reactor coolant sample valves during LOCAEper Criterion 3.
DISTRISUTIDR CODE:
AOSSD COPIES RECEIVED:LTR i ERCL 0
SIZE:
TITLE:
OR Submi t ta 1:
TI~1I Ac t i on P 1 an Rgmt NUREG-0737 8
NUREG "0660 NOTES:
OL:10/25/74 OL: 12/23/72 05000315 05000316 HEC IP IENT ID GOOF/NAME NRH ORB 1 BC 01 INTERNAL: ACHS 34 ELD/HDS3 IE/DFPFR/EPB NRH PAULSON I'4 ~
NRR/OL DIR 14 NR"/DSI/ADRS 27 NRH/DS I/ASB NRR/DST OIH 30 RGN3 COP 1ES LTTR ENCI 10 1
1 3
1 1
1 1
1 1
1 REC IP IENT ID CODE/NAMF.
ADM/LFMB IE/DEPEH OIR 33 IE/DEPER/IRt'.
NRR/DHFS DEPY29 NRR/DL/GRAB 18 NHR/DS I/AE8 NRR I/RAR 04 RGN2/DRSS/EPRPR COP IKS LTTh'.NCL EXTERNAL: LPOR NSIC 03 05 NRC POR NTIS 02 1
1 1
1 TOTAL NUMBER OF COPIES REQUIRED:
LTTR 43 ENCL
INDIANA8 MICHIGAN ELECTRIC COMPANY P.O. BOX 16631 COLUMBUS, OHIO 43216 November 7, 1984 AEP: NRC:0678K Donald C.
Cook Nuclear Plant Unit Nos.
1 and 2
Docket Nos.
50-315 and 50-316 License Nos.
DPR-58 and DPR-74 POST ACCIDENT SAMPLING SYSTEM; PROVIDING INSTRUMENT AIR TO REACTOR COOLANT SAMPLE VALVES DURING A LOCA, CRITERION 3 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C.
20555
Dear Mr. Denton:
Pursuant to our response to Criterion 3 in our letter AEP:NRC:0678H dated August 2, 1984, we have completed the evaluation of plant procedures to determine the steps necessary to safely provide instrument air to the reactor coolant sample valves inside containment.
This letter summarizes the results of this evaluation.
To provide instrument air to the sample valves during safety injection, the Phase A containment isolation signal would have to be reset to permit opening the four (4) containment isolation valves that supply instrument air to the sample valves.
The evaluation determined that resetting the containment isolation signal would not affect the status of any containment isolation valves, safety injection, or safety related equipment.
Therefore, we are incorporating procedural changes to permit resetting the containment Phase A isolation and open the containment isolation valves for instrument air.
These changes will be implemented by the end of January, 1985.
8411140304 841107 PDR ADOCK 05000315 P
Mr. Harold R. Denton AEP -NRC:0678K This document has been prepared following Corporate procedures which incorporate a reasonable set of controls to insure its accuracy and completeness prior to signature by the undersigned.
Very truly yours,
'JP M.. Alexich
~ g, I Vice President ~'"'"i MPA/cm cc:
John E.
Dolan W. G. Smith, Jr.
Bridgman R.
C.
Cal len G. Bruchmann G.
Cham off NRC Resident Inspector Bridgman