ML20033H026
| ML20033H026 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 03/20/1990 |
| From: | Collins S NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Carns N ARKANSAS POWER & LIGHT CO. |
| Shared Package | |
| ML20033H027 | List: |
| References | |
| NUDOCS 9004160104 | |
| Download: ML20033H026 (3) | |
Text
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In Reply Refer To:
Dockets: 50-313 50-368 l
I Arkansas Power & Light Conpany 1
ATTN:
Neil S. Carns, Vice President i
Nuclear Operations P.O. Box 551 j
Little Rock, Arkansas 72203
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This acknowled es the Arkansas Nuclear One, granting of a temporary waiver of compliance to 9
Unit 2 (ANO-2), from the provision of Technical j
Specification (TS) 3.6.3.1, " Containment Isolation Yalves," Action b.
Your j
letter (2CANO39015) to this office, dated March 19, 1990, provides the written basis for the temporary waiver of compliance that you verbally requested on l
March 16,1990 I
A tempo.*ary waiver of compliance was verbally granted on March 16, 1990 by i
NRC Region ly allowing ANO-2 to continue operation in Mode 1 while repairs could be made to the reactor makeup water (demineralized water to the quench tank) Outboard Isolation Valve 2CV-4690-2.
The tine periods granted for the i
temporary waiver of compliance from TS 3.6.3.1.b include:
(1)atotaloffour i
cumulative hours from 4:30 p.m. (CST) March 16-18, 1990, to open 2CV-4690-2 as i
needed to add water to the quench tank, and (2) an additional 30-hour period to i
begin on March 19,1990, upon disassenbly of 2CV-4690-2 for inspection, repair, and postmaintenance testing. We understand that you began repairs to i
2CV-4690-2 at approximately 11:30 a.m. (CST) on March 19, 1990. Therefore, this j
temporary waiver of compliance will expire at 5:30 p.m. (CST) on March 20, 1990.
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Region IV performed an evaluation of your followup written documentation and found it to be in confonrence with the information that you provided to Mr. L. J.
Callan of the Region IV office during a teleconference on March 16, 1990. As connitted by your staff, we understand that you will maintain the following compensatory measures until 2CV-4690-2 is fully restored to an operable i
t condition:
Control room operators have been informed of the administrative restrictions on the opening of 2CV-4690-2 to add makeup water to the quench
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tank, and the limitation on the total cumulative hours the valve can be in an open position and/or disassembled beginning March 19, 1990, in O
addition, 2CV-4690-2 is deenergized af ter each valve opening to ensurt
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@@g isolation integrity.
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q8o Prior to disassembly of 2CV-4690-2, the two motor-operated valves located i
- O in the piping system inside the containnent building, 2CV-4685 and
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2CV-4693, will be closed and their associated handswitches red-tagged while 2CV-4690-2 is disassenbled for maintenance to provide an additional isolation barrier for the penetration piping. These valves do not receive any signal to automatically reposition. Additionally, Manual isolation 4
Valve 2CYC-79 will be maintained in its normally closed position.
No periodic filling of the quench taak will be perforned during the valve testing and any required repairs.
Should circumstances arise such that repairs to 2CV-4690-2 have not been completed, or it is anticipated that they cannot be completed prior to the expiration of the 30 hour3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br /> waiver period. ANO 2 will inform the NRC of the circumstances and, if necessary, will initiate a plant shutdown.
As indicated by fir. Robert fenech of your staff on March 16, 1990, we understand that the ANO Pltnt Safety Consnittee reviewed and approved the basis of your proposed request for a temporary waiver of compliance prior to requesting this j
waiver from NRC Region IV.
If your understanding of this matter differs from that expressed above, or if you have any other questions regarding this matter, please contact Mr. Dwight Chamberlain of my staff at (817) 860-8249.
Sincerely, i
Samuel J. Collins, Director Division of Reactor Projects j
CC:
Arkansas Nuclear One
(
ATTN: Early Ewing, General Manager l
l Technical Support and Assessment P.O. Box 608 l
Russellville, Arkansas 72801 Arkansas Nuclear One ATTN:
J. Yelverton, Director Nuclear Operations P.O. Box 608 Russellville, Arkansas 72801 Combustion Engineering, Inc.
ATTN:
Charles B. Brinkman, Manager Washington Nuclear Operations 12300 Twinbrook Parkway, Suite 330 i
Rockville, Maryland 20852 i
e
Arkansas Power & Light Company
-3 Honorable Joe W. Phillips County Judge of Pope County Pope County Courthouse Russellville. Arkansas 72801 Bishop. Cook Purcell & Reynolds ATTN: Nichoies S. Reynolds Esq.
1400 L Street, N.W.
Washington, D.C.
20005-3502 Arkansas Department of Health ATTH: Ms. Greta Dicus. Director Division of Environmental Health Protection 4815 West Markem Street Little Rock, Arkansas 72201 Babcock & Wilcox Nuclear Power Generation Division ATTN: Mr. Robert B. Borsum 1700 Rockville Pike, Suite 525 Rockville, Maryland 20852 U.S. Nuclear Regulatory Comission ATTN: Senior Resident Inspector 1 Nuclear Plant Road Russellville, Arkansas 72801 U.S. Nuclear Regulatory Comission ATTN Regional Administrator. Region IV 611 Ryan Plaza Drive. Suite 1000 Arlington. Texas 76011 bec to DMB (IE01) w/ enclosure bec distrib. by RIV w/ enclosure:
R. D. Martin Resident inspector DRSS FRPS SectionChief(DRP/A)
Lisa Shea RM/ALF RIV File DRP MIS System RSTS Operator Project Engineer (DRP/A)
T. Alexion, NRR Project Manager (MS:
13-E21)
DRS C. Poslusny, NRR Ptsject Manager (MS:
13-D-18)
J. Liebennan, OE G. Sanborn. EO G. Holahan. NRR J. Rogge. EDO M. Slosson, NRR T. Murley. NRR a