ML20086D514

Telecopy Ro:On 780105,discovered That One of Two Nuclear Engineering Co Model B3-1 Shipping Casks Provided w/1-inch Diameter Lid Bolts Rather than 1-1/4 Inch Size Specified in Certificate of Compliance 6058

ML20086D514
Person / Time
Site:	Monticello, 05000000
Issue date:	01/06/1978
From:	Eliason L NORTHERN STATES POWER CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML19289B550	List: 05000000/LER-1977-012, :on 770620,during Investigation of Cycle 5 Max Critical Power Ratio Limits,Ge Found That Pump Trip Delay Time Assumed in Original Cycle 5 Transient Analysis Not Appropriate.Amend Request Will Be Submitted 05000000/LER-1977-020-03, /03L:on 770404,RCS Leakage Determined to Be Greater than 10 Gpm.Caused by Packing Leakage Past Stems on RTD Bypass Throttle Valves 13RC20 & 14RC20.Valves Placed on Backseat & Stem Leakage Decreased 05000000/LER-1977-038-03, /03L:on 770519,RCS Leakage Determined to Be Greater than 10 Gpm from Stem Leakoff on Manual Isolation Valves 1PS24 & 1PS28 for Pressurizer Spray Valves.Caused by Packing Leakage.Valves Will Be Repacked at Next Outage ML20086D481 ML20086D514 ML20086D520 ML20086D537 ML20086D550 ML20086D554 ML20086D557 ML20086D561 ML20086D567 ML20086D606 ML20086D642 ML20086D691 ML20086D703 ML20086D760 ML20086D788 ML20086D818 ML20086D823
References
NUDOCS 8312020185
Download: ML20086D514 (2)

Text

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melus NORTHERN STATES POWER COMPANY MOVrICELID !?JCIEAR GDERATING PIANT

?.DVrJCELLO, MllEESOTA 55302 January 6, 1978 i'

l' Mr. J. G. Keppler, Director Region III office of Inspection and Enforcement United States Nucicar Regulatory Cownission 799 Roosevelt Road Glen Ellyn, Illinois 60137

Dear Mr. Keppler:

MONTICELID MJCIIAR GENERATING PLANT Docket No. 50-263 License No. DPR-22 On Janusy 5,1978, it was discovered that one of tuo Nuclear Engineering Company, Inc., Model B3-1 shipping casks used to transport irradiated F

com?onents was provided with 1 inch diameter lid bolts rather than the 1-1/4 inc1 diameter size as described in the NRC Certificate of Compliance No. 6058 The cask with the smaller size bolts will no longer be used by this facility.

Further investigation of this occurrence is in progress.

Yours very tn 1y,

,. ' C

r, L.

. -liason #"

Plant Manager LRE/kik l

cc:

Director, Office of Management Infonnation and'Pmgram Control G Chamoff Minnesota Pollution Control Agency Attn:

J W Fennan

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.awn NSD N O R T *1 E R N STATES POWER COMPANY MNTICELlh PUCIEAR GENERATING PIAhT FDVTICELID, MIINESOTA 55362 January 6, 1978 h

Mr. J. G. Keppler, Director Region III Office of Inspection and Tmforcement United States Nuclear Regulatory Comission 799 Roosevelt Road Glen Ellyn, Illinois 60137

Dear Mr. Keppler:

SKWTICELID !OC1 JAR GENTRATING PIANT Docket No. 50-263 License No. DPR-22 On Januan 5,1978, it was discovered that one of two Nuclear Engineering Comany, Inc., Model B3-1 shipping casks used to transport irradiated com)onents was provided with 1 inch diameter lid bolts rather than the 1-1/4 inca diameter size as described in the NRC Certificate of Compliance No. 6058 The cash with the smaller size bolts will no longer be used by this facility.

Further investigation of this occurrence is in pmgmss.

Yours very tnaly,

- C9

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t L.

-11ason "

Plant Manager GE/kik cc:

Director, Office of Management Infomation and Program Contml G Chamoff Minnesota Pollution Contal Agency Attn:

J W Fenien Pile 4

Copy sent by telecopier_to Keppler, 4

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