ML20058L055
| ML20058L055 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 11/11/1975 |
| From: | Mayer L NORTHERN STATES POWER CO. |
| To: | Boyd R Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20058L058 | List: |
| References | |
| NUDOCS 9105070370 | |
| Download: ML20058L055 (1) | |
Text
J.
NSF NORTHERN STATES POWER COMPANY M IN N E A PO LI S. M 8 N N E S OTA B 5 4 01 November 11, 1975 ku 'A O.,c e
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- .s Mr. R. S. Boyd, Acting Director Division of Reactor Licensing 1;
A U. S. Nuclear Regulatory Commission
~ ~' '#cIj}~[ 'f'
's Washington, DC 20555 Q
Dear Mr. Boyd:
MONTICELLO NUCLEAR GENERATING PLANT Docket No. 50-263 License No. DPR-22 Failure of Containment Isolation Yalves to Meet Leak Tightness Criteria Attached are eight Licensee Event Reports describing containment isolation valves which required corrective maintenance following Type C leakage tests.
A detailed discussien of each valve deficiency will be included in the " Reactor Containment Building Integrated Leak Rate Test Report" to be submitted following the Type A test scheduled this month and in the next Monticello Semi-Annual Operating Report.
Yours very truly,
,W L.
O. Mayer, P.
Manager, Nuclear Support Services LOM/DG / deb l
I cc: J. G. Keppler G. Charnoff MPCA U,
Attn:
J. W.
Ferman m --
9105070370 751111
..s CF ADDCK 050 63 g 13003 l
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