ML20094E239

Final Part 21 & Deficiency Rept Re Potential Problem W/Standby Diesel Generator Loose Flexible Coupling Drive Hubs Supplied by Tdi.Initially Reported on 840120

ML20094E239
Person / Time
Site:	Perry
Issue date:	07/27/1984
From:	Edelman M CLEVELAND ELECTRIC ILLUMINATING CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
REF-PT21-84-390-000 (RDC-92(84)), PT21-84-390, PT21-84-390-000, NUDOCS 8408090148
Download: ML20094E239 (2)

Text

. . s bm6 ELECTRIC ILLUMIN ATING COMPANY f THE CLEVELA!!D P.O. box 5000 - CLEVELAND, oHlo 44101 - TELEFHoNE (216) 622-9800 - ILLUMINATING BLDG. - 55 PUBLICSQUARE Serving The Best Location in the Nation MURRAY R. EDELMAN VICE PRESIDENT NUCLEAR July 27, 1984

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Mr. James G. Keppler Regional Administrator, Region III Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission .

799 Roosevelt Road Glen Ellyn, Illinois 60137 -

RE: Perry Nuclear Power Plant Docke t Nos. 50-440; 50-441 Flexible Coupling Drive Hubs Supplied by Transamerica Delaval, Inc. [RDC 92(84)]

Dear Mr. Keppler:

This letter serves as the final report pursuant to 10CFR50.55(e) concerning a potential problem with loose flexible coupling drive hubs on Standby Diesel Generator components supplied by Transamerica Delaval, Inc. (TDI) . Mr. P.

Pelke of your office was first notified on January 20, 1984, by Mr. P. Martin of The Cleveland Electric Illuminating Company that this matter was being evaluated for applicability to the Perry Nuclear Power Plant. An interim report on this subject was filed on February 17, 1984, and a subsequent letter dated May 24, 1984, also concerned this deficiency.

This report contains a description of the deficiency, an analysis of the safety implication. and the corrective action taken.

Description of Deficiency On January .9,1984, TDI filed a 10CFR21 notification with the NRC relative to a problem identified with flexible coupling drive hubs which were found loose on the shaf ts in the Overspeed Governor and Engine Driven Fuel Oil Pump Drive on a non-nuclear commercial engine installation manuf actured by TDI. It was determined that if the Engine Driven Fuel Oil Pump stops turning, an engine would not operate unless there was an auxiliary pump driven by an external source. The engine would continue to operate if the overspeed governor stopped turning. Inspection of the four Standby Diesel Generator Units supplied to the Perry Nuclear Power Plant has confirmed the applicability of this potential deficiency to the PNPP Units.

AUG) 8408090148 840727  %

PDR ADOCK 05000440 jl S PDR S 7

e o s Mr. Jamer G.: Kepplar July 27, 1984 Analysis of Safety Implications

' Loose flexible coupling drive hubs on the Overspeed Governor and Engine Driven

. Fuel Oil Pump Drive could result in the failure of the engine driven fuel oil pump. Fuel flow to the engine would be inadequate, affecting engine avail-ability and thus affecting availability of the Standby AC power source.

- Corrective Action Taken Upon receipt of the TDI notification, Nonconformance Report TAS-0074 was initiated to track resolution of this problem and transmit the inspection /

rework program recommended by TDI in Service Information Memo NBR 363 to our site contractor., The required corrective action has now been completed for Unit i engines. Inspections of Unit 2 engines have been completed and rework is in progress with completion pending receipt of parts from TDI. Unit 2 rework is expected to be complete by December 1,1984.

Please call if there are any additional questions. ,

Sincerely, f $ sb Murray R. Edelman

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Vice President Nuclear Group MRE:pab cc: Mr. J. A. Grobe NRC Site Off'.ce Director Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D.C. 20555 U.S. Nuclear Regulatory Commission c/o Document Management Branch Washington, D.C. 20555 Records Center, SEE-IN Institute of Nuclear Power Operations 1100 Circle 75 Parkway, Suite 1500 Atlanta, Georgia 30339