ML19247A392
| ML19247A392 | |
| Person / Time | |
|---|---|
| Site: | Fermi  |
| Issue date: | 07/13/1979 |
| From: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Hines E DETROIT EDISON CO. |
| References | |
| NUDOCS 7907310409 | |
| Download: ML19247A392 (1) | |
Text
.
>R R E G o
NUCLEAR REGULATORY COMMISSIGN
{
'-\\ " /, $
REGION ill o ~
e' P I 8
799 ROOSEVELT ROAD
%
- be e
GLEN ELLYN, ILLINOls 60137
. JUL 131979 Docket No. 50-341 The Detroit Edison Company ATTN:
Mr. Edward Hines, Assistant Vice President and Manager Quality Assurance 2000 Second Avenue Detroit, MI 48226 Gentlemen:
The enclosed IE Circular No. 79-13, is forwarded to you for infor-mation. No written response is required. Should you Lave say questions related to your understanding of this matter, pleas.. contact this office.
Sincerely,
/
James G. Keppler p Litector
Enclosure:
IE Circular No. 79-13 cc w/ encl:
Central Files Director, NRh/DPM Director, NRR/ DOR PDR Local PDR NSIC TIC Ronald Callen, Michigan Public Service Commission Eugene B. Thomas, Jr.,
Attorney
....r. ba).9 L
%iw s...
2907310907
U.S. NUCLDR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT REGION III July 13,1979 IE Circular No. 79-13 REPLACEMENT OF DIESEL FIRE PUMP STARTING CONTACTORS Description of Circumstances:
On May 28, 1978, the Diesel Fire Pu=p failed to start remotely at Davis-Besse, Unit 1 facility opt. rated 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 Pu=p identified a generic problem with Cu= mins Indus-trial Fire Punp Engines.
Discussion:
The investigation revealed that Cu= mins Engine Company issued a Service / Parts Topics No. 74T 13-3A announcing new ce=ponents available for Industrial Fire Pumps (NH-220-1F, N-855-F, N-855-71, NT-855-F2 serfes engines) to improve operation of inline 6 cylinder Industrial Fire Pu=p Engines. In this topic, C d ns 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 drav vhereas the old combination has approximately 3 amperes draw. Davis Besse and Dresden sites have implemented the corrective action reco== ended by C"- M s.
Reco= mended Actions for Licensees' Consideration:
All holders of operating licenses er construction per=1ts should be aware of the potential problem of the type discussed above. Because of the generic implications in this matter, it is recommended that bcth licensees of operating facilities and alders of construction permits conduct a review to determine if the above diesel fire pu=p engines are in use or planned for use at your f acility(ies).
If these engines are in use or planned for use, determine if the Cumins type 118848 Magnetic Switch and 199573 DC relay contactors are also employed. For those engines which have these components, develop a pro-gram for their replaeament v1 5 the new 217588 Magnetic Switch.
No written response his Circular is required.
If you require additional information regarding u..se matters, contact the Director of the appropriate. -
f.
U(
NEC Regional Office.
w
,.__w n-
,.-n m
q (DUPLICATE DOCUMENT
Enclosures:
L 1.
Cm-mi m Service / Parts Topics Entire document previously entered No.
74 T 13-13A*
into system under:
2.
List of II Circulars Issued b
in the Last Twelve Months
- AliO l90~7/9O/28
,j No. of pages:
h m
5
'_u e.
~
l x
---.. - -