ML20247D328

Ack Understanding of Conditions of Acceptance for Relief Requests Granted Conditionally or Partially Denied in 890519 SER on Inservice Test Program for Pumps & Valves.Few Minor Discrepancies Discovered in Ser.W/List of Discrepancies

ML20247D328
Person / Time
Site:	Browns Ferry
Issue date:	07/21/1989
From:	Michael Ray TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
GL-89-04, GL-89-4, TAC-11324, TAC-11325, TAC-11326, NUDOCS 8907250163
Download: ML20247D328 (3)

Text

___

~

).

. ,o

. TENNESSEE VALLEY AUTHORITY CHATTANOOGA. TENNESSEE 37401 SN 157B Lookout Place JUL 211989 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555 Gentlemen:

In the Matter of ) Docket Nos. 50-259 Tennessee Valley Authority ) 50-260 50-296 BROWNS FERRY NUCLEAR PLANT (BFN) - RESPONSE TO ASME SECTION XI - PUMP AND VALVE TESTING PROGRAM SAFETY EVALUATION REPORT (SER) - (TAC NOS. 11324, 11325, AND 11326)

Reference:

NRC Letter to TVA dated May 19, 1989. " Safety Evaluation eport on the Inservice Test Program for Pumps and Valves for Browns Ferry

'duelear Plant, Units 1, 2, and 3" The purpose of this letter is to acknowledge TVA's understanding of the conditions of acceptance for the relief requests which have been granted conditionally or part.lally denied in the above referenced SER. TVA has reviewed its pump and valve program against the conditions of the SER and the requirements of Generic Letter 89-04, " Guidance on Developing Acceptable Testing Programs." In the process of this review, there were a few minor discrepancies discovered in the SER. A list of these discrepancies are contained in the enclosure for your review and concurrence.

If you have any questions, please telephone Patrick P. Carier, BFN, (205) 729-3570.

Very truly yours, TENNESSEE VALLEY AUTHORITY s4 m Manag , Nucledr/ icensing and Re ulatory A fairs Enclosure ec: See page 2 8907250163 890721 d PDR ADOCK 05000259 i4

' I p PDC 'l g

An Equal Opportunity Ernployer

I -

1 .

. 1 '

l JUL 211989 4

U.S. Nuclear Regulatory Commission cc (Enclosure):

Ms. S. C. Black, Assistant Director for Projects TVA Projects Division U.S. Nuclear Regulatory Commission One White Flint, North 11555 Rockville Pike Rockville, Maryland 20852 Mr. B. A. Wilson, Assistant Director for Inspection Programs TVA Projects Division U.S. Nuclear Regulatory Commission Region II 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323 NRC Resident Inspector Browns Ferry Nuclear Plant Route 12, Box 637 Athens, Alabama 35609-2000

i i

f

.o . **

ENCLOSURE The following is a list of minor discrepancies found in the NRC's SER for the BFN's Pump and Valve program:

2.2.2.3 PV-3, Five Mininum Run Time for SCL and DFT Pump Tests In the second sentence of the evaluation, it reads, "The proposed i alternative of running the Code pump test for two minutes immediately following a 15-minute functional pump test is considered to provide an equivalent test." Because this is a positive displacement pump it does not require 15 minutes to stabilize the pump parameters, and a 5-minute run time is sufficient.

2.2.2.4 PV-5, Pump Test Instrumentation Accuracy and Full-Scale Requirements, Allowable Range of In-Service Test Quantities, and Vibration Amplitude Requirements The Table under number 3 of the relief request should read:

Test Acceptable Alert Required Quantity Range Ranne Action Range V 0<vsl.5Vr 1.5V e<Vg3.0Ve V>3.0Ve 2.3.2.8 PV-12, Quarterly Stroke Timing Residual Heat Removal Service Water (RHRSW) Valves 23-34, 40, 46, and 52 In the third sentence of the relief request it reads, "This test will be performed quarterly and the reference position will be 4500 gpm." The sentence should read, ". . . will be less than or equal to 4500 gpm."

In the second sentence of the evaluation it reads, "The alternative proposed by the licensee, stroke timing to a reference flow, is a sa!.isfactory alternative test." The sentence should read, "The alternative proposed by the licensee, stroke timing to a reference position is a satisfactory alternative test."

2.3.2.21 PV-25, Stroke Timing Rapid-Acting Valves in the Following Systems Und3r the section, " Licensee's Basis for the Requesting Relief," the sentence reads, " Valves with stroke times 2 seconds cannot be accurately timed." The sentence should read ". . . times less than 2 seconds . . . ."

2.3.3.25 PV-29, Leak Testing Inboard Main Steam Isolation Valves at Full Maximum Function Pressure Differential In the second sentence of the relief request it reads, "The licensee proposes to test the valve at a reduced differential pressure of 26 psig." The sentence should read, ". . . pressure of 25 psig." in accordance with BFN Technical Specifications 4.7.A.2.1.

1 l