ML20072F937

Forwards Updated LERs 78-027/03X-6,79-032/03X-2 & 79-056/03X-1,et Al

ML20072F937
Person / Time
Site:	Fort Saint Vrain
Issue date:	06/06/1983
From:	Warembourg D PUBLIC SERVICE CO. OF COLORADO
To:	Jay Collins NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML20072F941	List: 05000267/LER-1979-032-03, During Testing,Four of 12 Helium Circulator Seal Malfunction Pressure Differential Switch Units Would Not Trip.Caused by Dirt Accumulation in Electrical Switches.Switches Replaced 05000267/LER-1979-056-03, During Testing,Seven of 12 Helium Circulator Seal Malfunction Pressure Differential Switch Units Tripped Outside Limits.Caused by Dirt Accumulation in Electrical Switches.Switches Replaced 05000267/LER-1980-016-03, During Testing,Four of 12 Helium Circulator Seal Malfunction Pressure Differential Switch Units Tripped Outside Limits.Caused by Dirt Accumulation in Electrical Switches.Switches Replaced 05000267/LER-1980-026-03, During Testing,Eight of 12 Helium Circulator Seal Malfunction Pressure Differential Switch Units Tripped Outside Limits.Caused by Dirt Accumulation in Electrical Switches.Switches Replaced 05000267/LER-1980-034-03, During Testing,Two of 12 Helium Circulator Seal Malfunction Pressure Differential Switch Units Tripped Outside Limits.Caused by Dirt Accumulation in Electrical Switches.Switches Replaced 05000267/LER-1980-041-03, During Testing,One of 12 Helium Circulator Seal Malfunction Pressure Differential Switch Units Tripped Outside Limits.Caused by Dirt Accumulation in Electrical Switches.Switches Replaced 05000267/LER-1980-051-03, During Testing,Five of 12 Helium Circulator Seal Malfunction Pressure Differential Switch Units Tripped Outside Limits.Caused by Dirt Accumulation in Electrical Switches.Switches Replaced 05000267/LER-1981-006-03, During Annual Testing & Calibr,Six of 12 Helium Circulator Seal Malfunction Pressure Differential Switch Units Tripped Outside Limits.Caused by Dirt Accumulation in Electrical Switches.Switches Replaced 05000267/LER-1981-016-03, During Testing,Three of 12 Helium Circulator Seal Malfunction Pressure Differential Switch Units Tripped Outside Limits.Caused by Dirt Accumulation in Electrical Switches.Switches Replaced 05000267/LER-1981-047-03, During Testing,One of 12 Helium Circulator Seal Malfunction Pressure Differential Switch Units Tripped Outside Limits.Caused by Dirt Accumulation in Electrical Switch.Switch Replaced ML20072F937
References
P-83197, NUDOCS 8306280217
Download: ML20072F937 (2)

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public service company cf Odemde f 'p (,7 ve 16805 Road 19 1/2, Platteville, Colorado 80651-9298 d

June 6, 1983 Fort St. Vrain Unit No. 1 P-83197

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l Mr. John T. Collins, Regional Administrator J { JUN I 31983 i

Region IV Nuclear Regulatory Commission i

611 Ryan Plaza Drive d O' il Suite 1000 Arlington, Texas 76011 z

Reference:

Facility Operating License No. DPR-34 Docket No. 50-267

Dear Mr. Collins:

Enclosed please find a copy of Reportable Occurrence Report Nos. 50-267/78-27, 50-267/79-32, 50-267/79-56, 50-267/80-07, 50-267/80-16, 50-267/80-26, 50-267/80-34, 50-267/80-41, 50-267/80-51, 50-267/80-72, 50-267/81-006, 50-267/81-016, 50-267/81-024, 50-267/81-047, Final, and 50-267/80-20, Revised Final, submitted per the requirements of Technical Specifications AC 7.5.2(b)1 and AC 7.5.2(b)2.

Also, please find enclosed one copy of the Licensee Event Report for Reportable Occurrence Report Nos. 50-267/78-27, 50-267/79-32, 50-267/79-56, 50-267/80-07, 50-267/80-16, 50-267/80-20, 50-267/80-26, 50-267/80-34, 50-267/80-41, 50-267/80-51, 50-267/80-72, 50-267/81-006, 50-267/81-016, 50-267/81-024, and 50-267/81-047.

Very truly yours, h /YEu2.t d t %

Don Warembourg Manager, Nuclear Production DW/cis Enclosure D

cc: Director, MIPC Q

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San Francisco operations Office ATTN California Patent Group

- 1333 Broadusy Oakland California 94612

- Pepa r tmen t of E ne rgy - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1 (P 14tter)

Fr. Glen A. Newby. Chief

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20545 LDepartment of Energy - - - - - - - - - - - - - - - - - - - - - - - - - - -

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Project Manager ATIN:

Dr. Beighley P. O. Box 81608 San Diego. CA 92138

!!r. John I. Collins Regicsal Administrator

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Regi;n IV-Nuclear Regulatory Comrission 011' Ryat Plaza Drive Suite 1000 -

-Arlington. Texas 76011 Mr. Philip C. Wagner. Project Manager 1 (P Letter)

Region IV Nucinar Regulatory Commission 611 Ryan Plasa Drive Suite 1000 Arlington. Texas '76011 Di re c t o r - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1 (P Letter)

Office of Management Information and Program Control

. Nuclear Regulatory Commission Washington D.C.

20535 INPO Records Center ------------------------------- 1 (P Letter)

' Suite 1500 1100 Circle 75 Parkway Atlanta. Georgia 303.19

fr. :like Dolphin. FSV. CA Technologies. Inc. Site Representative - - - - - - - - - 1 (P Letter)

General Atomic Technologies. Inc.

16864 Weld County Road 19 1/2

'Platteville. Colorado 80651 NRC Resident Site Inspector

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