ML19246C336

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Forwards IE Circular 79-13, Replacement of Diesel Fire Pump Starting Contactors. No Action Required
ML19246C336
Person / Time
Site: River Bend  Entergy icon.png
Issue date: 07/13/1979
From: Seyfrit K
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
To: Weigand J
GULF STATES UTILITIES CO.
References
NUDOCS 7907240302
Download: ML19246C336 (1)
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NUCLEA t REGULATORY COMMISSION E

ilEGION IV f >'

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U AR LINGTON, TE X AS 76012 o

July 13, 1979 In Reply Refer To:

RIV Docket Nos.

50-458/IE Circular No. 79-13 50-459/IE Circular No. 79-13 Culf States Utilities Attn:

Dr. J. G. Weigand General Manager, Nuclear Projects Post Office Box 2951 Beaumont, Texas 77704 Gentlemen:

The enclosed IE Circular No. 79-13, is forwarded to you for information.

No written response is required.

Should you have any questions related to your understanding of this matter, please contact this office.

Sincerely,

/s J

Karl V. Seyfrit Director

Enclosures:

1.

IE Circular No. 79-13 2.

List of IE Circulars Issued in Last 12 Months 360 303 7907240 g

UNITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, D.C.

20555 IE Circular No. 79-13 Date: July 13, 1979 Page 1 of 1 REPLACEMENT OF DIESEL FIRE PUMP STARTING CONTACTORS Description of Circumstances:

On May 28, 1978, the Diesel Fire Pump failed to start remotely at Davis-Besse, Unit 1 facility operated by Toledo Edison Company. The cause for failure was defective starting contactors. A subsequent investigation into the cause of a similar failure on January 18. 1978, at Commonwealth Edison Company's Dresden 2/3 Diesel Fire Pump identified a generic problem with Cummins Indus-trial Fire Pump Engines.

Discussion:

The investigation revealed that Cummins Engine Company issued a Service / Parts Topics No. 74T 13-3A announcing new components available for Industrial Fire Pumps (NH-220-1F, N-855-F, N-855-F1, NT-855-F2 series engines) to improve operation of inline 6 cylinder Industrial Fire Pump Engines.

In this topic, Cummins recommends that when replacing the 118848 magnetic switch and 199573 DC relay contactor, use the new 217588 magnetic switch. The new design component has a 6 ampere draw, whereas the old combination has approximately 3 amperes draw. Davis Besse and Dresden sites have implemented the corrective action recommended by Cummins.

Recommended Actions for Licensees' Consideration:

All holders of cperating licenses or construction perm.its should be aware of the potential problem of the type discussed above.

Because of the generic implications in this matter, it is recommended that both licensees of operating facilities and holders of construction permits conduct a review to determine if the above diesel fire pump engines are in use or planned for use at your facility (ies).

If these engines are in use or planned for use, determine if the Cummins type 118848 Magnetic Switch and 199573 DC relay contactors are also employed.

For those engines whicL have these components, develop a pro-gram for their replacement with the new 217588 Magnetic Switch.

No written response to this Circular is required.

If you require additional information regarding tbese matters, contact the Director of the appropriate NRC Regional Office.

Enclosure:

Cummins Service / Parts Topics No. 74T 13-3A 360 30'l 7907190128

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'M.5 5Q New Components Available For Industrial 9.'/g.22 N

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When replacing 118848 M39netic Switch,1995730C Relay 21693 Fig.1. (optional field replacem-nt) and magnetic Ccntactor end 212461 Wi,-ing Harness in thalf(eld thsy -

switch Fart No. 217538, Fig. 2.. have been releand to, should be replaced with new de> iso components!.he.

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5. Inst 3M new wiring harne.u as follows; RaNece wires PN.

cos L TER m.L.s 2,6, 8 D.10 and 11 un terminal b:ock, No.13 on arnmeer x

and No's. 2 and 13 on voit35,e ter,;ulator..Sce wirin; diagrarn, Fig. 3 g,..

COVTACT T E 3 MIN ALS 3

A placcrd, Cummins Fire Pump Endnes initial Stact Up ard N

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covering all inodels of Cumrnins industrist fire Pums h

Enir.es is now available and may be c(dered as Bulbrtin No

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  • IE Circular No. 79-13 July 13, 1979 LISTING OF IE CIRCULARS ISSUED IN LAST TWELVE MONTHS 78-13 Inoperability of 7/10/78 All Holders of Service Water Pumps Reactor Operating Licenses (OL) or Construction Permits (CP) except for plants located in:

AL, AK, CA, FL, GA, LA, MS, SC 78-14 HPCI Turbine Reversing 7/12/78 All Holders of Chamber Hold Down BWR Operating Bolting Licenses (OL) or Cons-ruction Permits (CP) for plants with a HPCI Terry Turbine excepting Duane Arnold and Monticello 78-15 Tilting Disc Check 7/20/78 All Holders of Valves Fail to Close Reactor Operating With Gravity in Licenses (OL) er Vertical Position Construction Permits (CP) 78-16 Limitorque Valve 7/26/78 All Holders of Actuators Reactor Operating Licenses (OL) or Construction Permits (CP)

/8-17 Inadequate Guard 10/13/78 All Holders of Training /Qualifica-and applicants tion and Falsified for Reactor Training Records Operating Licenses (OL) 78-18 Underwriters 11/6/78 All Holders of Laboratory Fire Reactor Operating Test Licenses (OL) or Construction Permits (CP)

Enclosure

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3 Page 1 of 3

IE Circular No. 79-13 July 13, 1979 78-19 Manual Override 12/29/78 All IIolders of (Bypass) of SaCety Reactor Construction Actuation Signals Permits (CP) 79-01 Administration of 1/12/79 All Medical Unauthorized Byproduct Licensees except Material to IIumans Teletherapy Medi al Licensees and each Radiopharmaceutical Suppliers 79-02 Failure of 120 Volt 1/16/79 All IIolders of Vital AC Power Reactor Ooerating Supplies License.JL) and Construction Permits (CP) 79-03 Inadequate Guard 2/23/79 All IIolders of Training - Qualifica-and applicants tion and Falsified for Special Nuclear Training Records Material Liccases in Safeguards Group I 79-04 Loose Locking Nut 3/16/79 All Holders of On Limitorque Valve Reactor Operating Operators License (OL) or Construction Permits (CP) 79-05 Moisture Leakage in 3/20/79 All Holders of Stranded Wire Conductors Reactor Operating License (OL) or Construction Permits (CP) 79-06 Failure to Use Syringe 4/19/79 All Holders of and Battle Shields in Medical Licensees Nuclear Medicine except teletherapy licensees 79-07 Un m,ected Speed Increase 5/2/79 All Holders of BWR of Reactor Recirculation Operating Licenses (OLs)

MG Set Resulted in Reactor or Construction Pcwer Increase Permits (cps)

Enclosure Page 2 of 3

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IE Circular No. 79-13 July 13, 1979 79-08 Attempted Extortion - Low 5/18/79 All Fuel Facilities and Enriched Uranium Reactors Licensed by NRC 79-09 Occurrences of Split or 6/22/79 All Materials Punctured Regulator Priority I, Fuel Diaphragms In Certain Cycle and Operating Self Contained Breathing Reactor Licenses (OL)

Apparatus 79-10 Pipefittings Manufactured 6/26/79 All Power Reactor from Unacceptable Material Licensees with a Construction Permit and/or Operating License (0L) 79-11 Deoign/ Construction 6/27/79 All Holders of and Applicants Interface Problem for Power Reoctor Construction Permits (CP) 79-12 Potential Diesel Generator 6/I,/79 All Power Reactor Licensee with Turbocharter Problem a Construction Permit (CP) and/or Operating License (OL)

Enclosure Page 3 of 3 360 b

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