ML20058K593
| ML20058K593 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 06/29/1977 |
| From: | Day B, Mayer L NORTHERN STATES POWER CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| LER-LER-770629, NUDOCS 9102120551 | |
| Download: ML20058K593 (2) | |
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LICENSEE EVENT REPORT crNToct stocx l l
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/ d 57 58 l '. EN T DE SC Al'T:ON 9 l P::rinc; Tent Mo-2013, "B" R11R Injection Velve failed to open.
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@ ! m'er fuse cocned elle valve given "open" r.ignal.
"A" RHR system orerable at tirel
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@ lA 7700 IIce motor control center "onen" contactor did not clcse as require i uhen l
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Contactor pull in current caused control power fuse to open. j
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9102120551 770629 puet.ciiv CF ADOCK 05000263
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AOnmcNAL rAc cas 3 l contactor. Motor starter cleaned, propcr operation demonstrated.
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Mr J G Keppler, Director, Region III Office of Inspection & Enforcement U S Nuclear Regulatory Cocnission kQ%
E kCy 799 Roosevelt Road Glen E11 m, IL 60137 3
Dear Mr Keppler:
MONTICELLO NUCLEAR GENERATING PLANT Docket No. 50-263 License No. DPR-22 Failure of RHR Injection Valve MO 2013 To Open The Licensee Event Report for this occurrence is reproduced on the back of this letter.
Enclosed are three copies.
Yours very truly,
'O t/L L 0 Mayer, PE Manager of Nuclear Support Services LOM/MHV/deh cc: Director, IE, USNRC (30)
Director, MIPC (3)
G Charnoff MPCA Attn: J W Teman l
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