ML17317B158
| ML17317B158 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 04/27/1979 |
| From: | Shaller D INDIANA MICHIGAN POWER CO. |
| To: | Schwencer A Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 7905040611 | |
| Download: ML17317B158 (3) | |
Text
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R LATORY INFORMATION DISTRI ION SYSTEM (RIDS)
ACCESSION NBR:7905040611 DOC ~ DATE: 79/04/27 NOTARIZED:
NO DOCKET FAC IL'0 DONALD C ~
COOK NUCLEAR POWER PLANT F UNIT 1
F INDIANA 8 0500031 5 ONALD C ~
COOK NUCLEAR POWER PLANTF UNIT 2t INDIANA 8 05000316 AU
~
AUTHOR AFFILIATION SHALLERSD ~ V~:
REC IP ~ NAME RECIPIENT AFfILIATION SCHWENCER
~ A ~
OPERATING REACTORS BRANCH 1
SUBJFCT-FORWARDS OPERATING HISTORY INFO RE PRESSURIZER POWER OPERATED RELIEF VALVES'N RESPONSE TO 790427 REQUESTS DISTRIBUTION CODE:
AODIS COPIES RECEIVED:LTR t
ENCL U SIZE:
TITLE: GENERAL DISTRIBUTION FOR AFTER ISSUANCE OF OPERATING LIC NOTES: '~'
Z <Q'5
'A'll tt L.
RECIPIENT ID CODE/NAME ACTION:
05 BC Og INTERNAL:
0 REG F
1 15 CORE PERF BR 17 ENGR BR 19 PLANiT SYS BR 21 EFLT" TRT SYS EXTERNAL: 03 LPDR 23 ACRS COPIES LTTR ENCL 7
7 1
1 2
2 1
1 1
1 1
1 1
1 1
1 16 ib RECIPIENT IO CODE/NAME 02 NRC PDR 14 TA/EOO 16 AD SYS/PROJ 18 REAC SFTY SR 20 EEB 22 BR INKMAN 04 NSIC
~
COPIES LTTR ENCL 1
1 1
1 1
1 1
1 1
1 1
1 1
1 She 7 TOTAL NUMBER OF COPIES REQUIRED:
LTTR 38 ENCL 38
CL y~
INDIANA 8 MICHIGAN PO WFR COMPANY DONALD C. COOK NUCLEAR PLANT P.O. Box 458, Bridgman, Michigan 49108 April 27, 1979 Donald C.
Cook Nuclear Plant Units No.
1 and 2
Docket Nos.
50/315 and 50/316 License Nos.
DPR-58 and DPR-74 Mr. A. Schwencer, Chief Operating Reactors Branch II1 Division of Operating Reactors U.S. Nuclear Regulatory Commission Washington, D.C.
20555
Dear Mr. Schwencer:
This letter transmits information shown on Attachment 1 of the operating history of Units 1
and 2 of the D. C.
Cook Plant regarding pressurizer power operated relief valves.
This information is sent in response to a verbal request received on April 27, 1979.
Very truly yours, BAS:pk D.
V. Shaller Plant Manager cc:
R.
W. Jurgensen
PRESSURIZER POWER OPERATED RELIEF VALVES D. C.
Cook Plant Units 1
5 2 UNIT 8 DATE REASON FOR OPENING DID VALVE RESPOND AS EXPECTED?
PRESSURE ONE 3/23/79, Y
Failure of Crid. I 8 II Vital Power Supply Inverters Yes 2365 TMO 9/22/78 Power Operated While Techs Mere Performing Calibration Test Yes, But Not At Normal Set-Dropped point from 2210 to 2185 ONE 1/02/74 Techs Caused RHR Let-down Valve to Close-Mhile Performing Test Valve Mas Opened Manually to Control Pressure Spike.
Reactor Coolant System was Being Operated as Solid System Pressure Spiked From 400 psig to 1000 psig ONE 6/26/75 Lost 2 Crids With S.I. Signal Yes 2335 ONE 12/24/76 Performing Tests Prior Depressurizing for Refueling Yes 2370 4-27-79