ML19337A789
| ML19337A789 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 09/23/1980 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | Schwencer A Office of Nuclear Reactor Regulation |
| References | |
| TVA-SNP-TS-7, NUDOCS 8009300226 | |
| Download: ML19337A789 (2) | |
Text
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-TENNESSEE VALLEY AUTHORITY CH ATTANOOGA. TENNESSEE 374ol 400 Chestnut Street Tower II September 23, 1980 l
TVA-SWP-TS-7 4
' Director of Nuclear Reactor Regulation Attention:
Mr.-A. Schwencer, Chief Licensing Branch No. 2 Division of Licensing U.S. Nuclear Regulatory Comission Washington, DC 20555
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Dear Mr. Schwencer:
In the Matter of
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Docket No. 50-327 Tennessee Valley. Authority
)
Several changes to the Sequoyah Nuclear Plant unit 1 technical specifica-tions are requested to permit plant startup. Specification 3 4.6.2.f requires in part that several valves be tested for leakage before entering H0DE 4 after automatic or manual actuation and/or flow through the valve.
However, physical limitations preclude testing several valves until the plant is in MODE 3 These valves are 63-560, -561, ~562, -563 Cold Leg Injection Nc zle 4 ~
63-632, -633, -634, -635 RHR Cold Leg FCV-74-1, FCV-74-2 RHR Supply Line We request that the surveillance requirements be changed from prior to HODE 4 to prior. to MODE 2 for these valves.
t The present specification imposes n'ono GPM leakage limit on the RHR supply l
line valves FCV-74-1 and FCV-74-2. TVA believes that the one GPH leakage limit based on an extrapolation from an ASHE low pressure test is overly restrictive. We request that the leakaga limit for valves FCV-74-1 and FCV-74-2 be increased to five' GPM per. valve for 30' days whiJe tests are conducted at rated system temperature and pressure. The 30-day waiver-would provide TVA a reasonable time to review the test data and to meet with the NRC staff and discuss a final leakage limit.
Surveillance Requirement 4.4.6.2.2.d requires that leakage testing be performed on valves after automatic or manual action or flow through the valve. This requirement is inconsistent with test procedure outlined in response-to WRC question 6.65 for Sequoyah.- 1 This procedure was previously
- reviewed and accepted by the NRC staff. TVA requests a 30-day. waiver. from
.this requirteent in order-to have a reasonable time to meet with the NRC staff to resolve the inconsistency in requirements.
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-. Director of Nuclear Reactor Regulation September 23, 1980 TVA plans to submit these requests formally. TVA would also like to point
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out that this' apecification is one that was changed with the full power
' license without prior formal ~ notification.
Very truly yours, TENNESSEE VALLEY AUTIR)RITY L. M. Mills, Manager Nuclear Regulation and Safety
' Sworn to and subsor before me thisMkday of 4oI,1980-95 baus.a -
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