ML19325E130
| ML19325E130 | |
| Person / Time | |
|---|---|
| Site: | Fort Calhoun  |
| Issue date: | 10/23/1989 |
| From: | Morris K OMAHA PUBLIC POWER DISTRICT |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| LIC-89-822, NUDOCS 8911020036 | |
| Download: ML19325E130 (4) | |
Text
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l Omaha Public Power District 1623 Harneu Omsha Nebraska 68102 2247 402/536 4000 i
i October 23, 1989 l
LIC 80 822 i
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U. S. Nuclear Regulatory Commission l
Attn: Document Control Desk i
Mail Station PI 137 Washington, DC 20555
References:
1.
Docket No. 50 285 2.
Letter from OPPD (R. L. Andrews) to NRC (Document Control j
j Desk) dated July 29, 1988 (LIC 88 524) 3.
Letter from NRC (A. Bournia) to OPPD (K. J. Morris) dated August 17, 1989 l
Gentlemen:
t i
SUBJECT:
Update to Revision 4 of the IST Program for the Fort Calhoun i
Station (FCS)
In Reference 2, Omaha Public Power District (OPPD) submitted Revision 4 to the i
Pump and Yalve Inservice Test (IST) Program for FCS. The purpose of this letter is to update,Wision 4 in which the fail position of two process valves was incorrectly stated, i
Revision 4 added instrument tir check valves (IV-4388 C and IV-438D-C) associated with HCV-438B and HCV-4380, the process valves that serve to isolate containment penetrations M 18 and M 19.
The piping through these penetrations I
provide Component Cooling Water (CCW) to the Reactor Coolant Pumps (RCP) lube oil and seal coolers.
l The error in Revision 4 is that the failure mode of HCV-438B and HCV-4380 was changed to " Fail Closed". The failure mode of HCV-438B and HCV-4380 is I
actually " Fail Open". Specifically, the Revision 4 - List of Changes for item 6 under the column heading " Description of Change" should read " Add stroke test Closed." On page 40 the Valve Table entry for HCV-4388 (AC) and HCV 4380 (AC) listed under the 'Nor. Pos., Failure Mode" column should be changed from "NO, FC" to "NO, FO."
(See attachments) 'This change will impact Reference 3, the i
Safety Evaluation Report (SER) for Revision 4 of the IST Program.
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U. S. Nuclear Regulatory Commission LIC 89 822 Page 2 Both process valves HCV-438B and -4380, and the instrument air check valves i
IV 438B-C and -4380-C, remain in the IST Program and will be tested at the same frequency.
Testing of these valves occurs during cold shutdowns when the reactor coolant pumps are secured And Reactor Coolant System (RCS) temperature t
is below 130'F and during refueling outages, j
If you should have any questions, please contact me, f
Sincerely, K.
. Morris Division Manager l
Nuclear Operations KJM/pje Attachments c:
LeBoeuf, Lamb, Leiby and MacRae
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R. D. Martin, NRC Regional Administrator A. Bournia, NRC Project Manager l
P. H. Harrell, NRC Senior Resident Inspector l
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Attachmint 1 ISI Program Plan - Fort Calhoun Station 9evision 4 List of Changes A.
Changes to Valve Tables (The order in which the valves appear in each valve table has been changed to numerical order to facilitate the use of the tables.
Page hoy Valva Numhar Descrintion of Channa 1
38 TCV 102 keduce maximum allowable leak rate to match Survet11ance Test.
2 38 HCV 204 Reduce maximum allowable leak rate to match surveillance Test.
3 39 HCV 383 3 Change maximum allowable stroke
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time from 305 to 255.
a 40 HCV 383 4 Change maximum allowable stroke time from 305 to 255, 5
40 HCV 438A,B.C & D Reduce maximum allowable leak rate to match Serva111ance Test.
6 40 HCV 4385 & 0 Q stroke yst clos,ed.:d : h ;;
7 43 HCV-1559A Change maximum allowable stroke time from its to 165.
6 44 NCV 15590 Change maximum allowable stroke time from 125 to 145.
9 44 HCV-1560A & B Change maximum allowable stroke time from It$ to 165.
10 44 PCV 1649 Chante to FC.
11 45 PCV-2909, 2929, Change maximum allowable stroke l
1949 & 2969 time from 143 to 95.
t 45 HCV 2916, 2934 Change maximum allowable stroke tell & 2976 time from its to 65, 13 46 HCV 150 & 151 Chante test frequency from Cold j
i Shutdown to Quarterly.
14 47 HCV 240 i
Change maximum allowable closing i
stroke time from 50S to 215.
15 48 HCV 304, 305, Change maximum allowable stroke j
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306 L 307 time from 1105 to 875.
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