ML20012D664

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Provides Followup Written Request for Waiver of Compliance to Make Tech Spec 3.04 Inapplicable to Tech Spec 3.8.1.2 to Permit Entry Into Mode 5 W/Operability of Diesel Generator a & Associated Load Sequencer Unverified
ML20012D664
Person / Time
Site: Vogtle Southern Nuclear icon.png
Issue date: 03/22/1990
From: Mcdonald R
GEORGIA POWER CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
ELV-01469, ELV-1469, NUDOCS 9003280209
Download: ML20012D664 (2)


Text

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R P. Mcdonald E meevt've VSe f>teWent Nudear Operations ELV-01469 0312 Docket No. 50-424 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D. C. 20555 Gentlemen:

V0GTLE ELECTRIC GENERATING PLANT WAIVER OF COMPLIANCE This letter is a follow-up written request for a waiver of compliance for Georgia Power Company's Vogtle Electric Generating Plant Unit 1. A one-time Technical Specification waiver of compliance was requested to make Technical Specification 3.0.4 not applicable to Technical Specification 3.8.1.2. This waiver was required to allow entry into Mode 5 with the operability of Diesel Generator lA and its associated load sequencer unverified. The Plant Review Board has reviewed and approved this waiver.

This waiver was necessary because recent failures of the Unit 1 Train A Diesel Generator and its associated load sequencer rendered their operability questionable. Even though an extensive investigation is being conducted, the specific cause of the failure of this equipment has not been identified.

The current Reactor Coolant System water level is at mid-loop. This waiver allows tensioning of the Reactor Pressure Vessel head which also allows filling and venting of the Reactor Coolant System. Filling and venting tio RCS will result in an increase in RCS water inventory and make the steam generators available for heat removal should they be required. As additional compensatory action, on-shift operators have been briefed on the condition of the equipment and how to respond by manually initiating a Diesel Generator emergency start should it be required.

This is a one-time request due to present plant conditions and equipment status.

Since. Technical S)ecification 3.8.1.2 action requirements are the same for Modes 5 and 6 the probaaility of occurrence and consequences of an accident are not increased by this request and no significant safety hazards are involved. The additional inventory and addition of the steam generators as an available heat sink improves the margin of safety.

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U. S. Nuclear Regulatory Commission ELV-01469 Pace Two Since no change in plant design occurs as a result of this waiver of compliance and since the plant is being placed in an improved condition with respect to water inventory and available heat sinks, no adverse environmental effects are involved.

Sincerely, '

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R. P. Mcdonald ~

RPM /HWM/gm xc: Georaia Power Company Mr. C. K. McCoy Mr. G. Bockhold, Jr.

Mr. R. M. Odom Mr. P. D. Rushton NORMS U. S. Nuclear Reaulatory Commission Mr. S. D. Ebneter, Regional Administrator Mr. T. A. Reed, Licensing Project Manager, NRR Mr. R. F. Aiello, Senior Resident Inspector, Vogtle i