ML20041F280

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Interim Deficiency Rept Re Design Defect in Emergency Diesel Generator Governor Lube Oil Cooler,Initially Reported 820126.Cooler Will Be Moved to Elevation Below Governor Oil Level.Next Rept by 820416
ML20041F280
Person / Time
Site: Washington Public Power Supply System
Issue date: 02/26/1982
From: Mazur D
WASHINGTON PUBLIC POWER SUPPLY SYSTEM
To: Faulkenberry
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
10CFR-050.55E, 10CFR-50.55E, NUDOCS 8203160356
Download: ML20041F280 (2)


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. , Docket Hos. 50 l+60/513

_Il' 50 55(e) Report Washington Public Power Supply System P.O. Box 968 3000 GeorgeWashingtonWay Richland, Washington 99352 (509)372-5000 February 26, 1982 G0-1 0062 to Nuclear Regulatory Commission Region V p q 1450 Maria Lane, Suite 210 RECEIVED Walnut Creek, California 94596 2 _.

2- MARI'81982> ~8 Attention: Mr. R. H. Faulkenberry  ; mae Chief, Reactor Construction Projects Branch \ M mY E

Subject:

NUCLEAR PROJECTS 1 AND 4 =

DOCKET NOS. 50-460 AND 50-513 REPORTABILITY CONDITION EMERGENCY DIESEL GENERATOR GOVERNOR LUBE OIL C0OLER

Reference:

Telecon ME Rodin, Supply System to PP Narbut, Region V, Nuclear Regulatory Commission, dated January 26, 1982.

In the above referenced telecon the Supply System informed your office of a potentially reportable deficiency under 10CFR50.55(e).

Attachment A to this letter, provides the Supply System's report on the subject condition. The attachment includes a statement of the identified condition and a brief description of our planned and ongoing corrective action. Because of the length of time required to correct the deficiency, an interim status report will be issued by April 16, 1982 with final report to follow by September 17, 1982.

If you have any questions or desire further information, please advise.

Program Director DWM:MER:Im Attachment '""TAS3 cc: CR Bryant, BPA/399 V. Stello, Director of Inspection, NRC i', 3 73 g , gg 7,i3 FDCC/899 EW Edwards, Bechtel/860 C V. Mani, UE&C/896 0%

'0?.hG M. h g g 0203160356 820226 i PDR ADOCK 05000460 S PDR Q '1 []

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ATTACHMENT A WNP-1/4 DOCKET N05. 50-460 AND 50-513 REPORTABLE CONDITION PER 10CFR50.55(e)

EMERGENCY DIESEL GENERATOR GOVERN 0R LUBE OIL COOLER BACKGROUND The Supply System purchased Emergency Diesel Generators, two per plant, J from Transamerica Delaval. A problem exists in the Governor Lube Oil Cooler Assembly which could result in loss of engine availability. -'

Transamerican Delaval has reported this deficiency under the requirements of 10CFR Part 21.

The Governor and Governor Lube Oil Cooler were manufactured by Woodward Governor Company of Fort Collins, Colorado and installed and piped on the engine by Transamerica Delaval.

DESCRIPTION OF THE DEFICIENCY The design deficiency is in the Governor Oil System and concerns the orientation of the Governor and Lube Oil Cooler as installed on each engine. If the Governor Lube Oil Cooler is installed above (elevation) the oil level of the Governor, as is the case for Units 1 and 4 there is a possibility of air being trapped in the system when the oil level in the Governor is low.

SAFETY IMPLICATIONS If air is trapped in the Governor's Oil System, engine starting relia-bility may be affected.

CORRECTIVE ACTION The deficiency will be eliminated by moving the Governor Lube Oil Cooler to an elevation below the Governor oil level. Transamerica Delaval is in the process of detailing drawings to accomplish this relocation.

Instructions for relocating /retubing the Governor Lube Oil Cooler are to be forwarded to the Supply System by March 31, 1982. Actual rework of the system will be completed by August 31, 1982. Upon completion of the rework Supply System Project QA will verify that the relocation of the lube oil cooler is in accordance with the Delaval instructions and drawings. Further transamerica Delaval will incorporate the new location of the lube oil cooler in their As-built drawings.

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