ML20058K599
| ML20058K599 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 04/04/1977 |
| From: | Mayer L, Scheinost R NORTHERN STATES POWER CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| LER-LER-770404, NUDOCS 9102120592 | |
| Download: ML20058K599 (2) | |
Text
{{#Wiki_filter:_. _. _... UCENSEE EVENT REPORT ~ iCNTROL BLOCK:l l l l l l l (ptaASE MttstT ALL REGUNDED MPORMA110)) 1 _6 - s l LEENSE MNT LCE%dEE NAME LCENSE NUuSER - TYPE TYPE h lM lN lMl Nl Pl 1l l0 l0 l-l 0 l 0l Gi 0l 0l-l0 l 0 l l4l1l1l1l1l [0 l1 l 30 31 32 $ "26 7 89 14 15 mead 6 m~, o.1E -1 ,E
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- c.,E 7 8 57 58 59 60 61 68 69 74 75 SO EVENT DESCRIPTION DURING PLANT STARTUP, THE AIR-EJECTOR SAMPLE SYSTEM WAS FCUND TO BE ISOLATED, CAUSINGj Ql 80 7 89 OFF-GAS WAS BEING PROCESSED TOl Q [ BOTH AIR-EJECTOR RADIATION MONITORS TO BE INOPERABLE.
80 l @l THE HOLDUP SYSTEM. NOT A REPETITIVE OCCURRENCE. SAMPLE SYSTEM SUPPLY l 7 83 80 7 89 g hl OPENED. (M-RO-77-06) 83 7 89 J 5L rl) 7 89 m CYo'E coIE coupoNENT cooE 6wAs J50 vota'ow i M l C l LA,j lIlNISlTl RI11 lNl lGl0l8l0l lY l c 7 89 10 11 12 17 43 44 47 48 CAUSE DESCRIPTION WOPI l l PLANT OFERATORS VERE UNAWARE THAT SAMPLE SYSTEM SUPPLY VALVE WAS CLOSED. O 80 7 89 ALSO. SA**LE FLOW ALAEM TO l h l CON'" DOL PROFTCS AD START _7 PROrrnt wr5 TO BE RrVTSTD. 80 7 89 l 3l FE INVrSTICATTD. "#E!a# oscovE~ mS -c~ 0%; , 0 E. er-to 1.ruS lCl l0 l5 l5 l l NA l l_AJ l FINALIZING WORK CONTROL DOCLYENTS l 7 8 9 10 12 13 44 45 46 BD kENED LOCATCN Of AELE ASE AMDAT OF ACTMIT E EASE l f l NA l os NA 7 8 9 10 11 44 45__ 60 PERSONNEL EXPCSURES NuwSEA TYDE DES;nFTCN
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44 (. MSP NORTHERN STATES POWER COMPANY M tj ?,,N E A P O L.1 S. M I N N E S OT A 55401 s ~ ' r Mf. 5kdI*. ./ /c \\ g' / O s ~ April 4, 1977 k [ T, d 6.. N-1{-{('h [y-Mr J G Keppler, Director, Region III Office of Inspection & Enforcement U S Nuclear Regulatory Co:rdssion 790 Roosevelt Road Glen Ellyn, IL 60137 i
Dear Mr Keppler:
MONTICELLO NUCLEAR GENERATING PIANT Docket No. 263 License No. DPR-22 Air-Eiector Radiation Monitors Found Inoperable The Licensee Event Report for this occurrence is reproduced on the back j of this letter. Enclosed are 3 copies. Yours very truly, +\\ L 0 Mayer, PE Manager of Nuclear Support Services LOM/MHV/ak l cc: Director, IE, USNRC (40) Director, MIPC,, USNRC (3) l G Charnoff MPCA Attn: J W Perman l l l i 1 -over-170fyd)27~ l .-}}