ML20058K617
| ML20058K617 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 04/24/1973 |
| From: | Mayer L NORTHERN STATES POWER CO. |
| To: | Oleary J US ATOMIC ENERGY COMMISSION (AEC) |
| References | |
| NUDOCS 9102120668 | |
| Download: ML20058K617 (1) | |
Text
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~B C",N:3cre NORTHERH STATES POWER COMPANY Minneapolis, Minnesota 55401 April 24, 1973
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(<}., 1 Mr. J. F. O' Leary, Director
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United States Atomic Energy Comission f
Washington, D C 20545 33
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Dear Mr. O' Leary:
hDhTICEL11] NUCLEAR GENERATING PIANT Docket No. 50-263 License No. DPR-22 Failure of LPCI Injection Valve to Open A condition occurred at the Monticello Nuclear Generating Plant which we are reporting to your office in accordance with Section 6.6.C. of the Technical Specifications, of Provisional Operating License DPR-22.
On April 5, 1973, during routine surveillance testing, the No. 11 LPCI inboard injection valve, FD-2014, could not be opened using the control room handswitch. Dirty auxiliary contacts were found to have prevented energizing the opening contactor coil circuit. The contacts were cleaned and the valve was demonstrated to operate properly.
Yours very truly,
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L 0 Mayer, PE Director of Nuclear Support Services gy, ;-a g,
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