05000263/LER-1980-023, Forwards LER 80-023/03L-0

Forwards LER 80-023/03L-0

ML19320B334
Person / Time
Site:	Monticello
Issue date:	07/01/1980
From:	Mayer L NORTHERN STATES POWER CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML112900761	List: 05000263/LER-1980-023, Forwards LER 80-023/03L-0 05000263/LER-1980-023-03, /03L-0:on 800601,air Ejector Offgas Radiation Monitors Dropped to About 20% Normal for About 40 Minutes. Caused by Mechanical Vacuum Pump Offgas Sample Valve Being Incorrectly Opened.Valve Now Wired Shut
References
NUDOCS 8007100190
Download: ML19320B334 (1)

LER-1980-023, Forwards LER 80-023/03L-0

Event date:
Report date:
2631980023R00 - NRC Website

text

NSP NORTHERN STATES POWER COMPANY M I N N E A l* Q U S. M I N N E G OTA 55401 July 1, 1980 Mr J G Keppler Office of Inspection & Enforcement U S Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137

Dear Mr Keppler:

MONTICELLO NUCLEAR GENERATING PLANT Docket No. 50-263 Licerise No. LPR-22 Low Reading on Air Ejector Process Radiation Monitors The Licensee Event Report for this occurrence is reproduced on the back of this letter.

EncicJed are three copies.

This event is reported in compliance with Technical Specification 6.7.B.2.b. in that it represents operation in a degraded mode for a short period of time as allowed by the Limiting Conditions for Operation.

Yours very truly, wa

-otA L 0 Mayer, PE Manager of Nuclear Support Services LOM/DMM/jh cc:

Director, IE, USNRC (30)

Director, MIPC, USNRC (3)

MPCA Attn: J W Ferman

- over-8007500/90