AECM-84-0293, Special Rept 84-023/0:on 840505,Div 1 Diesel Generator Failed During Start Attempt for Monthly Functional Surveillance.Cause Unknown.Monthly Surveillance Revised to Include Monitor Solenoid Start Signal Instrumentation

Special Rept 84-023/0:on 840505,Div 1 Diesel Generator Failed During Start Attempt for Monthly Functional Surveillance.Cause Unknown.Monthly Surveillance Revised to Include Monitor Solenoid Start Signal Instrumentation

ML20091M349
Person / Time
Site:	Grand Gulf
Issue date:	06/01/1984
From:	Dale L MISSISSIPPI POWER & LIGHT CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
84-023-0, 84-23, AECM-84-0293, AECM-84-293, NUDOCS 8406110250
Download: ML20091M349 (2)

Text

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0 E MISSISSIPPI POWER & LIGHT COMPANY Helping Build Mississipp!

y. O X 1640, J AC K S ON, MIS SIS S!P FI 3 9 2 0 5 ne 1, 1984 NUCLEAR PRODUCTION DEPARTMENT U.S. Nuclear Regulatory Commission Region II 101 Marietta St., N.W., Suite 2900 Atlanta, Georgia 30303 Attention: Mr. J. P. O'Reilly, Regional Administrator

SUBJECT:

Grand Gulf Nuclear Station Unit 1 Docket No. 50-416 License No. NPF-13 File: 0260/L-835.0 Special Report 84-023/0 -

Division 1 Diesel Generator Failure to Start AECM-84/0293 On May 5, 1984 at 0943 hours0.0109 days <br />0.262 hours <br />0.00156 weeks <br />3.588115e-4 months <br />, the Division 1 Diesel Generator failed during a start attempt for the monthly functional surveillance. The engine turned over approximately one revolution before stopping. The Division 2 and l 3 Diesel Generators were operable and the plant was in Cold Shutdown at the l time of the event. l The diesel generator was instrumented for troubleshooting and testing, but the investigation revealed no component problems. Ten successful starts were accomplished during the troubleshooting effort. A previous occurrence on March 24, 1984 was reported in LER 84-016. The troublechocting efforts at I l

that time failed to identify any component malfunctions. The diesel generator was declared operable following completion of the extensive testing. The diesel generator was out of service approximately 16 hours1.851852e-4 days <br />0.00444 hours <br />2.645503e-5 weeks <br />6.088e-6 months <br />.

In accordance with Regulatory Guide 1.108 and Technical Specification l 4.8.1.1.3, the failure to start ic reported as a valid failure. This is the l second valid failure in the last 100 valid starts and the testing interval has been increased to at least once each 14 days in accordance with Regulatory Guide 1.108 position c.2.d.

The monthly functional surveillance is being revised to include additional instrumentation to monitor solenoid start signals on both Division 1 and Division 2 diesel generators in a continuing effort to identify 8406110250 840601 OiM M kg PDR ADOCK 05000416 S PDR Member Middle South Utilities System (b ~

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• the'cause of the failure. This is submitted as a final report. A revised

[ report will be submitted should any additional information become available.

N~ Yours truly, t L. F. Dale Director of Nuclear Licensing & Safety EBS/SHH rg cc: Mr. J. B. Richard Mr. R. B. McGehee Mr. N. S. Reynolds Mr. G. B. Taylor

,Mr.' Richard C. DeYoung, Director Office-of Inspection & Enforcement.

U. S. Nuclear Regulatory Commission Washington,- D. C. 20555 Document Control Desk U. S. Nuclear Regulatory Commission Washington, D. C. 20555 l

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