ML19289E624

Notification of Test Results Indicated in 780922 Part 21 Rept.Cites Three Causes of Injection Pump Failure.Concludes Pumps Are Now Adequate.No Further Action Contemplated

ML19289E624
Person / Time
Site:	Beaver Valley, Summer
Issue date:	03/22/1979
From:	Moriarty J COLT INDUSTRIES, INC.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML19289E625	List: ML19289E624 ML19289E627
References
REF-PT21-78-073-001, REF-PT21-78-073-002 NUDOCS 7904210795
Download: ML19289E624 (2)

Text

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'm 3 2 REGISTEREDLETTERNO.[

RETURN RECEIPT REQUESTED ORIGINAL & 3 COPIES lurch 22.1979 Office of Inspection & Enforcement bec: C. A. Ankrta U. S. Iluclear Regulatory Cocuission R. H. Beadle R. A. Dudley. Bostoe 799 Roosevelt Road Glen Ellyn, Ill. 60137 hafMller Attention: Mr. Jancs G. Keppler Director. Region III - I

Subject:

Colt Industries-Fairbanks !! arse Engine Division H. R. Hedden Emergency Diesel Generators J. F. Morgan Possible Existence Of A Defect-Injection Pur.1ps G. W. Olson 10CFR Part 21 Report Dated September 22. 1978 J. W. Tangyo Supplemental Report 32-Northeast Utilities. Millstone III Gentlemen:

Our September 22.1978 Part 21 Report indicated we would evaluate the cdequacy of the program, described as being undertaken on th2 H111 stone III unit undergoing a 300 start test at that time, after completion of the test.

Our Engineering and Quality Assurance Copartments have analyzed the injection pump failures. It is their conclusion that the failurcs were the result of oae or r. ore of the folloaing conditions.

1 Surface irregularities on barrel an#or plunger.

2 Incorrect material.

3 How punps (i.e.. no previous running).

After completion of the 300 start tests, all injection pumps were rccoved froin both P.111 stone III units. All pumps were inspected to newly estab-11shed criteria reflecting the above three areas of concern. All pumps were disassembled plungers and barrels were inspected and clearances recorded. Revised de-burring and stoning procedures were carried out on the helix on the plunger and the fuel inlet port on the barrel. In addition, one runn from each unit was rerun for 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> and re-examined.

The results of the reruns were satisfactory.

Colt's conblusion is that all of the Hillstone III injection ptraps are now adequately run-in and are in good condition. No further action is contcaplated and both units are ready to go into service.

Very truly yours THIS DOCUMENT CONTAINS POOR QUAUTY PAGES

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. N. Poriarty FWIAcLR UTIL.ITY 3A1.LS Jitt:jc cc: Stone & K'ebster Engineering Corp. -

P. 0. Box 2325 Boston. Mass. 02107 I Attention: Lead Electrical Engineer 2 g 7g79 J.0. 12179 7904210 N .

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Eng(ne olvision

. D. 701 Lawton Avenue i[t 1.J /

Beloit, Wisconsin 53511 608/364-441 l

f Karch 23, 1979 Office of Inspection & Enforcement U. S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn Ill. 60137 Attention:i Mr. Jar.us G. Keppler, Director, Region III i

Subject:

Part 21 Report Colt Industries-Fairbanks Morse Engine Division Emergency Diesel Generators Possible Existence Of A Defect-Injection Pumps 10CFR Part 21 Report Dated September 22, 1978 Supplemantal Report #3, Duquesne Light Co., Beaver Valley II Referencei Supplemnt #2 to subject report dated March 22, 1979 Gentlemen:

Our September 22, 1978 report indicated the two Duquesne Light Co.,

Beaver Valley units in stor_ age at Beloit would be -dispositioned relative to the reported potential defect prior to shipment'.

All injection pumps on the two Beaver Valley II units have been removed hom the engines, inspected to the newly established criteria delineated in the referenced. Supplemental Report #1, and reinstalled an the en91nes.

in goodAll of the Beaver Valley injection purrps are now .dequately run-in and condition.

ready to go into service. No further action is contemplated and both units are Very truly yours, j .- . __

. r MANAGER UTILITY A cs u

JMM:jc

. cc: Stone & Webster Engineers Corp..

P. O. Box 2325 Boston, Massachusetts 02107 Attention: Project Engineer for Duquesne i J.O. 12241 3gyg73 W/ Supplement #2 dated March 22, 1979 '

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