ML20246F708
| ML20246F708 | |
| Person / Time | |
|---|---|
| Site: | McGuire  |
| Issue date: | 07/03/1989 |
| From: | Tucker H DUKE POWER CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 8907130374 | |
| Download: ML20246F708 (2) | |
Text
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',L ~ l DUKE POWER GOMPANY
P.O. nox 33189.
CHA3tLOTTE, N.O. 28242
~ MALH. TUCKER
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< - July;3, 1989 U.S. Nuclear Regulatory Comission Doctaient Control Desk b..
Washington,- DC 20555 -
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McGuire' Nuclear Station, Unit 1
. 'Jubject:
Docket No. ; 50-369 :
L Special Report Cbncerning Diesel Generator lA Gentlemen:
- Persuant to 'Dechnical Specification (T.S.) 6.9.2 as specified by T.S. 4.8.1'.1.3,
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' find attached a specici report mrning Diesel Generator-1A.'
f - If you have any questions, please contact S.E. LeRoy at (700 373-6233.
Very truly yours,.
g/
Hal. Tucker SEL/435 xc Mr. S.D. Ebneter, Administrator Mr. P.K. Van Doorn U.S. ' Nuclear Regulatory Ccunission NRC Senior Resident Inspector Region II McGuire Nuclear Station 101 Marietta St., NW,. Suite 2900 Atlanta, Georgia - 30323
- Mr. Darl Ibad Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Camission Washington, DC 20555-INPO Records Center
-Suite,1500 1100 circle 75 Parkway Atlanta, Georgia. 30339 1
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. Document Control Desk July 3, 1989 Attachment Dake Power Owpany McGuire Nuclear Station Diesel Generator lA Special Report On June 1, 1989 at 2308, Operations (OPS) started Diesel Generator (DG) 1A to perform an operability test using PT/1/A/4350/02A, concurrent with Performance procedure PT/1/A/4200/28A, Train A Slave Relay 'Ibst.
%is start attempt was No.
743. The engine started and operated with no probims.
Prior to the test, Maintenance personnel had performed work on the diesel turbocharger under Work Request (WR) 011007A PM.
An oil sample was obtained and the oi reservoir was then drained and refilled.
Item No. 4 of the hR required the Maintenance representative to notify the Maintenance Supervisor prior to performing the functional test.
The kB also states the " Turbocharger oil system requires priming". Maintenance personnel are also requested to stand by during engine starts when the turbocharger oil has been changed to verify circulation of the oil in the inboard and erlaust bearings.
During the first few moonds of the engine run, the turbocharger was observed and no oil flw was detected.
Maintenance personnel requested the engine be shut down.
Due to the test being performed under PT/1/A/4200/28A, the normal stop would not shut down the engine. The emergency stop was not used because it also stops the oil pumps and could lead to engine damage.
Se tert in progress was terminated and the engine stopped after approximately 8 minutes.
The oil was drained again and the turbocharger was flushed with oil. Oil samples frm both sources were taken and sent for analysis.
New oil was added and the pumps were primed.
The engine was started (start No. 744) and oil flw was observed.
Vibration analysis was perforned on the turbocharger anc no probles were detected.
Start attenpt No. 743 has been classified as an Invclid Test Failure because of failure durug troubleshooting of the component /rfstem.
Planned corrective actions are to:
1)
Develop a maintenance procedure for turbocharger oil change ard i
replenishment; 2)
Change applicable procedures to allow a maintenance run of the engine following maintenance and prior to any operations or Performance testing; and, l
3)
Investigate turbocharger modifications for the addition of jet assist l
which muld allow turbocharger testing and balancing without running the j
- engine, i
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