ML17037C360
| ML17037C360 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  (DPR-017) |
| Issue date: | 08/01/1972 |
| From: | Burt P Niagara Mohawk Power Corp |
| To: | Skovholt D US Atomic Energy Commission (AEC) |
| References | |
| Download: ML17037C360 (6) | |
Text
'.i AEC DISTRIBUj.ION FOR PART 50 DOCKET MATERIAL TEMPORARY FORM CONTROL No: 4272 FX FROM'iagara Mohawk Power Corporation Lycoming, New York 13093 P. Allister Burt 8>>1-72 8-4-72 DATE OF DOC:
DATE REC 'D LTR MEMO RPT OTHER To:
D. J. Skovholt CLASS:
PROP INFO ORIG 1 signed CC 39 No CXS REC'D 40 SENT AEC PDR X
SENT LOCAL PDR X
DOCKET No:
50<<220 DES RIPTION:
Ltr advising that on 5-21-72 during leak test
.. ~..outside valves in eacn line was not
, within the new leakage criteria of 12.9 SCFH.
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PLANT NAMES; Nine Mile Point Nuclear Sta.
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NIAGARAMOHAWKPOWER CORPORATION
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MOWAWK Regulatory Nine Mile Point Nuclear Station Post Office Box 32
- Lycoming, New York 13093 August 1, 1972 Mr. Donald J. Skovholt Assistant Director for Reactor Operations Division of Reactor Licensing United States Atomic Energy Commission Washington, D. C.
20545 Cf QV
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Dear Mr. Skovholt:
Re:
Provisional Operating License:
DPR-17 Docket No.:
50-220 On May 21, 1972, during the poison curtain removal outage at Nine Mile Point Nuclear Station, Unit 81, the main steam line isolation valves were leak tested.
E Steam flow from the 'reactor to the turbine is thru two lines each with two isolation valves, one located inside the drywell, the other located outside the drywell.
All four valves must meet the same time closure criteria as set forth in Technical Specification's Table 3.2.7.
The first test revealed all valves except the outside valves in each line were within the new leakage criteria of 12.9 SCFH.
Following repairs to the outside isolation valves retesting of all four isolation valves on May 25 and 26, 1972 using a test of 22 psig air pressure revealed all within criteria.
Results for all valves follow:
811 Inside 811 Outside 812 Inside II12 Outside 6.3 SCFH 7.2 SCFH 0.0 SCFH 10QO SCFH g ASCII~
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Mr. Donald J. Skovholt United States Atomic Energy Commission Page 2
Details of the tests, calculations and procedures are on file at Nine Mile Point Nuclear Station, Unit 81 and may be examined or supplied to you if
- required, Very truly yours, P. Allister Burt General Superintendent Nuclear Generation PAB:pw
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