ML20134A784

Informs That 851011 Request for License Amend,Deferring Installation of Automatic Depressurization Sys Air Receiver Pressure Indication Deficient.Listed Info,Including Analysis to Support Nshc,Requested by 851122 to Complete Review

ML20134A784
Person / Time
Site:	Grand Gulf
Issue date:	11/01/1985
From:	Adensam E Office of Nuclear Reactor Regulation
To:	Richard J MISSISSIPPI POWER & LIGHT CO.
References
TAC-59909, NUDOCS 8511070615
Download: ML20134A784 (3)

Text

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t November 1,1985  !

i DISTRIBUTION:- '

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( M14 .. ' l l Docket No: 50-416 NRC PDR~

l l Local PDR  !

l PRC System  !

Mr. Jackson B. Richard LB #4 r/f Senior Vice President, Nuclear EAdensam  !

! Mississippi Power and Light Company MDuncan P.O. Box 23054 LKintner .

Jackson, Mississippi 39205 Attorney, OELD  :

JPartlow EJordan

Dear Mr. Richard:

BGrimes ACRS (16)

Sabject: Grand Gulf Unit 1 - Request for License Amendment to Defer Installation of ADS Air Receiver Pressure Indication

! By letter dated October 11, 1985, Mississippi Power & Light Company (MP&L) .

requested an amendment to License Condition 2.C.(33)(g). The letter attached  !

a brief discussion, justification, and significant hazards consideration. The o proposed license amendment would extend the date for installation of pressure i indication in the control room for the air receiver in the automatic depres-  !

surization system (ADS) from the first refueling to the second refueling. All '

other terms in License Condition 2.C.(33)(g) would be fulfilled.

l The October 11, 1985, submittal is deficient in that it does not provide an ,

analysis as required by 10 CFR 50.91(a)(1) using the three standards of 10 CFR 50.92. The no significant hazards consideration provided simply repeats the three Standards and states, as a reason for these findings, that present administrative controls and testing for the ADS will be continued through the second fuel cycle. The justification refers to the increased complexity of '

the refueling outage work that would result from installing this instrument, the capability to continue the alternative measurements used during the first l fuel cycle, and a statement of MPAL's opinion that the installation of the  ;

pressure indication is a system enhancement.

Provide an analysis to support a finding of no significant hazards consideration.

The analysis should consider the fact that the requirement for installation of this pressure instrument at the first refueling outage is not solely a system enhancement. From a safety viewpoint the installation of this instrument is a requirement of the operating license and is part of the basis for the NRC l staff's safety evaluation and finding that the plant can be operated without endangering the health and safety of the public. The analysis should consider the increased probability or consequences of accidents previously evaluated in the Final Safety Analysis Report and other submittals. For example, the ADS system is used in safety analyses for loss of coolant accidents and safe shut-down following a fire. Consider the effect of the reactor operator not having available the continuous indication of adequate air pressure in the air receivers to actuate the safety relief valves. Consider licensing event reports on Grand Gulf and other BWRs which describe system and human errors resulting in air .

receiver pressure less than the design basis presented in the FSAR, Consider Ab $ g

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the increase in probability of an accident, without use of air receivers because of low pressure, caused bv :;i,eration twice as long (two refueling cycles versus one fuel cycle). Similarly, the analysis should consider the effect on the other two standards 'sf 10 CFR 50.92 of operating the second fuel cycle without the benefit of having ADS air receiver pressure indicated in the control room.

Provide also a description of the complexity of the work involved in installing this instrument in the first refueling cycle. For example, describe the work including the equipment (instrument, tubing, wiring) to be installed, the time to install and test, and the number of days the scheduled outage would need to be i

extended to complete the work.

In order to complete our review of this proposed license amendment by February 1986, as you requested, you are requested to provide this information by November 22, 1985. If you cannot meet this date please advise the NRC Project Manager for Grand Gulf Nuclear Station within 7 days of recolpt of this letter.

Sincerely, Original Signed by l Carl R. Stable for Elinor G. Adensam, Chief Licensing Branch No. 4 Division of Licensing cc: See next page l

l DL:LB #4 LA:pt 0, #4 LKintner/hme M0uh,jLB ean #4 EAdensam 10/l/85 3 10/[/85 19/l/85

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! Mr. Jackson B. Richard Mississippi Power & Light Company Grand Gulf Nuclear Staiton  ;

i i cc:  !

Robert B. McGehee, Esquire The Honorable William J. Guste, Jr. i Wise, Carter, Child, Steen and Caraway Attorney General <

P.O. Rox 651 Department of Justice i Jackson, Mississippi 39205 State of Loulslana ,

1 Baton Rnuge, Loutsiana 70804  !

Nicholas S. Reynolds, Esquire L l Bishop Liberman, Cook, Purcell Mr. Oliver D. Kingsley, Jr.

} and Reynolds Vice President Nuclear Operations ,

! 1200 17th Street, N.W. Mississippi Power & Light Company  ;

j Washington, D. C. 20036 -P.O. Box 23054 l j Jackson, Mississippi 39205 1

! Mr. Ralph T. Lally  :

l Manager of Quality Assurance Office of the Governor }

} Middle South Services, Inc. State of Mississippi i

} P.O. Box 61000 Jackson, Mississippi 39201 t New Orleans, Louisiana 70161

! Attorney General ,

l Mr. Larry F. Dale Director ,' Gartin Building l Nuclear Licensing and Safety

• Jackson, Mississippi 39705 Mississippi Power & Light Company i P.O. Box 23054 Mr. Jack McMillan, Director  !

j- Jackson, Mississippi 39205 Solid Waste  :

3 Mississippi State Board of Health  :

1 Mr. R. W. Jackson, Project Engineer 880 Lakeland  ;

1 8echtel Power Corporation Jackson, Mississippi 39206 '

j 15740 Shady Grove Road i j' Gaithersburg, Maryland 20760 Alton 8. Cobb, M.D.

1 State Health Officer i Mr. Ross C. Butcher State Board of Health j Senior Resident inspector .P.O. Box 1700 t U.S. Nuclear Regulatory Comission Jackson, Mississippi 39205

Route 2, Box 399  !

! Port Gibson, Mississippi 39150 President l l Claiborne County Board of Supervisors  ;

Regional Administrator, Region !! Port Gibson, Mississippi 39150  !

t U.S. Nuclear Regulatory Comission,

! 101 Marietta Street, N.W., Suite 2900 i l Atlanta, Georgia 30323 [

i Mr. 1. E. Cross, General Manager  !

Grand Gulf Nuclear Station j Mississippi Power & Light Company i P.O. Box 756 ,

j Port Gibson, Mississippi 39150 [

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