ML20006D253

Special Rept 90-001:on 900111,Train Reactor Vessel a Level Indicating Sys Inoperable for More than 7 Days.Replacement of Train a RVLIS Scheduled to Begin During Next Refueling Outage in Fall of 1990

ML20006D253
Person / Time
Site:	Farley
Issue date:	01/31/1990
From:	Hairston W ALABAMA POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
90-001, 90-1, NUDOCS 9002120293
Download: ML20006D253 (2)

Text

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, - Alabama Power Company  ;

,f W g t. 40 inverness Center Parkway Nst Office Box 1295 [

Birmingham Alabama 3520'.

t Telephono 205 068 5581 t.

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!' - W. G. Hairston, Ill . i Sen6or Vice President Nuclear Operation. Alabama Power- >

. January 31, 1990 ,

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j. Docket No. 50-364 U. S. Nuclear Regulatory Commission '

ATTNt Document Control Desk Vashington, D. C. 20555 Gentlemen ,

t Joseph M. Farley Nuclear Plant - Unit 2 Special Report No.90-001, "A" Train Reactor Vessel Level Indicating System Inoperable For More Than Seven Days ,

i In accordance with the requirements of Technical Specification 3.3.3.8, the-enclosed Special Report No.90-001, Unit 2, is provided. +

Respectfully submitted, I l0. E

• l V. G. Hairston, III r VGH,III/JARamd 13.33 ,

i. Enclosure .

r cct Mr. S. D. Ebneter

• Mr. E.-A. Reeves Mr. G. F. Maxwell  !

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t jDR002120293 99033, ,

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7 g -ADOCK 05000364 ~ i jI

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I Enclosure l

Special Report No.90-001, Unit 2.  ;

"A" Train Reactor Vessel Level (

Indicating System Inoperable For More Than Sevsn Days i

At'1326 on January 11, 1990, the heater associated with one ot' the heated

. junction thermocouple sensors in the "A" train of the reactor sessel level indicating system (RVLIS) failed. This is the fifth of the eight sensors '

-to fail on the'"A" train probe. Technical Specification 3.3.3.8 requires at least four of the sensors on each train to be operable. Therefore, the "A" train of RVLIS was declared inoperable.

Technical Specification 3.3.3.8 requires that an inoperable RVLIS probe be restored to operable status within seven days. However, if repairs art not feasible without shutting down, Technical Specification 3.3.3.8 requires that a Special Report be submitted within 30 days. Therefore, this Special Report is being submitted.

Investigation has shown that repairs are not feasible without shutting 4 down. It has been planned to replace the "A" train RVLIS probe during the next refueling outage which is currently scheduled to begin in the fall of 1990. ,

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JARamd 13.33

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