ML20058L541

LER Update Rept M-RO-77-33.On 771031,number 15 Bus Auto Transfer Malfunctioned.Caused by Use of Incorrect Const Prints

ML20058L541
Person / Time
Site:	Monticello
Issue date:	12/19/1977
From:	Mayer L, Tilly D NORTHERN STATES POWER CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
LER-LER-771219, NUDOCS 9105230318
Download: ML20058L541 (2)

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Np" R11A"0RY DC0KET F!!ECO NORTHERN 5TATES POWER COMPANY MIN N E A Pou s. MIN N E B OTA 95401 December 19, 1977 lf

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W. L., '

Mr J G Keppler, Director, Region III r- ;!

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Office of Inspection & Enforcement

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U S Nuclcar Regulatory Cernission 4

799 Roosevelt Road Glen E113m, IL 60137

Dear Mr Keppler:

MONTICELLO NUCLEAR GENERATING PIET Docket No. 50-263 License No. DPR-22 Licensee Update Report M-RO-77-33 The Licensee Event Update Report for this occurrence is reproduced on the back of this letter.

Enclosed are three copies.

Yours very truly, 6

1 L 0 Mayer, PE Manager of Nuclear Support Services LOM/191V/deh cc: Director, IE, USNRC (30) i Director, MIPC, USNRC (3)

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G Charnoff MPCA Attn:

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