ML17265A655

Initial Part 21 Rept Re Mfg Deficiency in Replacement Turbocharger for B EDG Supplied by Coltec Industries. Deficiency Consisted of Missing Drain Port in Intermediate Casing.Required Oil Drain Port Machined Open

ML17265A655
Person / Time
Site:	Ginna
Issue date:	04/09/1999
From:	Widay J ROCHESTER GAS & ELECTRIC CORP.
To:	NRC
References
REF-PT21-99 NUDOCS 9905240075
Download: ML17265A655 (7)

Text

REGULAT Y INFORMATION DISTRIBUTIO SYSTEM (RIDS)

ACCESSION NBR:9905240075 DOC.DATE: 99/04/09 NOTARIZED: NO DOCKET FACIL:50-244 Robert Emmet Ginna Nuclear Plant, Unit 1, Rochester G 05000244 ARITH. N~E AUTHOR AFFILXATION WIDAY,J.A. Rochester Gas &, Electric Corp.

RECIP.NAME RECIPIENT AFFILIATION NRC - No Detailed Affiliation Given

SUBJECT:

Part 21 rept re deficiency in replacement turbocharger for "B" EDG.Deficiency consisted of missing drain port in intermediate casing on turbine end.Turbocharger disassemble.

'I DXSTRXBUTION CODE: IE19T COPIES RECEIVED:LTR ( ENCL ( SIZE:

TITLE: Part 21 Rept (50 DKT)

NOTES:License Exp"date in accordance with 10CFR2,2.109(9/19/72). 05000244 E RECIPIENT . COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL LPD1-1 PD 1 1 VISSING,G. 1 1 INTERN . ILE CENTER 1 1 NRR/DRIP/REXB 1 1 R WARD, M. 1 1 RES/DET/EXB 1 1 RGN1 1 1 RGN2 1 .1 RGN3. 1 1 RGN4 1 1 EXTERNAL: INPO RECORD CTR 1 1 NOAC SILVER,E 1 1 NRC PDR, 1 1 NUDOCS FULL TXT 1 1 D

'E NOTE TO ALL "RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTE.'TO HAVE YOUR NAME OR ORGANIZATION REMOVED FROM DISTRIBUTION LISTS OR REDUCE THE NUMBER OF COPIES RECEIVED BY YOU OR YOUR ORGANIZATION, CONTACT THE DOCUMENT CONTROL DESK (DCD) ON EXTENSION 415-2083 FULL TEXT CONVERSION REQUIRED TOTAL NUMBER OF COPIES REQUIRED: LTTR 14 ENCL 14

1 FPR&9-1999 14: 18 GINNA STATION 716 771 3988 P.81~

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ROCHESTER GAS AND ELECTRIC CORPDRATTON 89 EAS 7 AVENUE, ROCHESTER, N.Y. 14H &%01 AREA CODE 71 &548.27M April 9, 1999 U.S. Nuclear Regulatory Commission Operations Center Facsimile Number 301-816-5151 Telephone Number 301-816-5100 Sub)ect: Znitial Notification of 10 CFR Part 21 Defect R.E. Ginna Nuclear Power Plant Docket No. 50-244 In accordance with 10 CFR Part 21, Reporting of Defects and Noncompliance, Section 21 (d) (3) (i), which requires ~Initial notification by facsimile", the enclosed initial notification is provided. Mritten notification, in accordance with 10 CPR Part 21, Section 21 (d) (3) (ii), will be provided by May 7, 1999.

very truly yours, a..d se h A. Widay Enclosure 9905240075 990409 PDR ADQCK 05000244 8 PDR 800 (P) OOH KLO SdO OHN TSTS 9T8 TOCQ SZ: VT 66/60/%0

RPR-89-1999 14: 18 5TATlEN 716 771 3988 P.82/84 10CFR21 XNlTlAL FACSIMILE NOTIFICATION NAME AND ADDRESS OF THE INDIVIDUAL INFORMING THE COMMISSION:

NAME: Joseph A. Widay Plant Manager ADDRESS: Rochester Gae & Electric Corporation S9 East Avenue Rochester, New York 14649 IDENT IFI CATION OF THE FACILITY THE ACTIVITY~ OR THE BA'S C I COMPONENT SUPPLIED FOR SUCH FACILITY WHICH FAILS TO COMPLY OR CONTAINS A DEFECT:

The basic component is the turbocharger (Model 730),

installed on the "B" Emergency Diesel Generator (ALCO Model 16-251F) at Ginna station. A replacement turbocharger was installed on the "B" Emergency Diesel Generator (EDG) on March 25, 1999.

XII. IDENTIFICATION OF THE FIRM CONSTRUCTING THE FACILITY OR SUPPLYING THE BASIC COMPONENT WHICH FAILS TO COMPLY OR CONTAINS A DEFECT:

The turbocharger was supplied to RG&E by Coltec Industries.

Col tee Xndustriee Fairbanks Norse/ALco Engine Division 701 White Avenue Beloit, WI 53511 NATURE OF THE DEFECT OR FAILURE TO COMPLY AND THE SAFETY HAZARD WHICH ZS CREATED OR COULD BE CREATED BY SUCH DEFECT OR FAILURE TO COMPLY:

The nature of .the defect consisted of a manufacturing deficiency in the replacement turbocharger for the "B" EDG.

The deficiency consisted of a missing drain port in the intermediate casing on the turbine end, preventing engine lubricating oil from being able to drain back to the engine sump from the turbocharger shaft and bearings. This deficiency created the condition where engine lube oil was being directed into cylinders through the exhaust manifold piping. With oil in the cylinders, the engine could have been seriously damaged when started. This would have resulted in a loss of redundancy in the on-site sources of 480V AC power.

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APR-89-1999 14: 18 G INNR STRT I ON 716 771 3988 P. 83<84 The EDG was not operable at this time, however, the pre-lube system was in operation. The "B" EDG was being prepared for post-maintenance testing on March 29, 1999, while the plant was defueled. No actual safety hazard existed, because the post-maintenance testing had not been performed.

V. THE DATE ON WHICH THE INFORMATION OF SUCH DEFECT OR FAILURE TO COMPLY WAS OBTAINED:

The information was obtained on March 30, 1999, following disasssembly of the turbocharger.

VZ. IN THE CASE OF A BASIC COMPONENT NiZCH CONTAINS A DEFECT OR FAILS TO COMPLYi THE NUMBER AND LOCATION OF ALL SUCH COMPONENTS IN USE AT, SUPPLIED FOR, OR BEING SUPPLIED FOR GINNA STATION:

There are 2 (two), permanently installed EDGs at Ginna Station. Only the "B" EDG was provide4 with a replacement turbocharger, which was found to contain the manufacturing deficiency stated in IV. above. The turbocharger on the "A" EDG was not replaced, and does not contain the stated deficiency.

VII. THE CORRECTIVE ACTION WHICH HAS BEEN, IS BEING, OR HILL BE TAKEN; THE NAME OF THE INDIVIDUALOR ORGANIZATION RESPONSIBLE FOR THE ACTION; AND THE LENGTH OF TIME THAT HAS BEEN OR RILL BE TAKEN TO COMPLETE THE ACTION:

The corrective action taken was to disassemble the turbocharger. During disassembly, the deficiency was discovered. Under the supervision of the manufacturer's representative, the required oil drain port was machined open, the turbocharger reassembled, and reinstalled on the "B" EDG. Post-maintenance and operability testing was successfully performed and the "B" EDG declared operable on April 2, 1999. Personnel from Rochester Gas and Electric Nuclear Engineering Services were responsible for the corrective action. Corrective actions were completed on April 2, 1999.

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APR-89" 1999 14: 11 Gll+A STATION VIZZ. ANY ADVICE REIATED TO THE DEFECT OR FAILURE TO COMPLY ABOUT THE FACILITY, ACTIVITY'R BASIC COMPONENT THAT HAS BEEN, ZS BEINGS OR WILL BE GIVEN TO PURCHASERS OR LICENSEES:

A missing oil drain port cannot be observed without disassembly of the turbocharger. Zn nuclear service applications, the use of a Coltec Industries Model 730 turbocharger on the ALCO 251 engine is unique to Ginna Station. Organizations procuring or installing turbochargers supplied by Coltec Industries under an Appendix B program should consider the potential for this deficiency.

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