ML19326C775

From kanterella
Jump to navigation Jump to search
Submits re-evaluation of ECCS Small Breaks Analysis Originally Forwarded by NRC 780417 Ltr.Operation at 100% Full Power Requested
ML19326C775
Person / Time
Site: Arkansas Nuclear Entergy icon.png
Issue date: 04/27/1978
From: Rueter D
ARKANSAS POWER & LIGHT CO.
To: Reid R
Office of Nuclear Reactor Regulation
References
1-048-23, 1-48-23, NUDOCS 8004280709
Download: ML19326C775 (3)


Text

.

feSOSd REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

DISTRIBUTION FOR INCOMING MATERIAL 50-S13 REC: REID R W ORG: RUETER D A DOCDATE: 04/27/78 NRC AR PWR & LIGHT DATE RCVD: 05/03/75 DOCTYPE: LETTER NOTARIZED: NO COPIES RECEIVED

SUBJECT:

LTR 1 ENCL 0 FURNISHING INFO RE-EVALUATION OF THE ECCS SMALL BREAKS ANALYSIS OF SUBJECT F%CILITY, AND REQUESTING PERMISSION TO OPERATE UNIT 1 AT 100% FULL PWR.

PLANT NAME: ARKANSAS - UNIT 1 REVIEWER INITIAL: XJM DISTRIBUTOR INITIAL: R co**o************ DISTRIBUTION OF THIS HATERIAL IS AS FOLLOWS ******************

GENERAL DISTRIBUTION FOR AFTER ISSUANCE OF OPERATING LICENSE.

(DISTRIBUTION CODE A001)

FOR ACTION: , STv-EHIEFrREHee*1 IQ ONLY ( 7 )

INTERNfiL: ( FRG FI5E**LTR ONLM,4 NRC PDR**LTR ONLY(1)

I 6'EF*Q x"GF M 2) OELDa*LTR ONLY(1)

HANAUER**LTR ONLY(1) CHECK **LTR ONLY(1)

EISENHUT**LTR ONLY(1) SHAO**LTR ONLY(1)

BAER**LTR ONLY(1) BUTLER **LTR ONLY(1)

EEB**LTR ONLY(1) J COLLINS **LTR ONLY(1)

J. MCGOUGH**LTR ONLY(1)

EXTERNAL: LPDR'S RUSSELLVILLE, AR**LTR ONLY(1)

TIC **LTR ONLY(1)

NSIC**LTR ONLY(1)

ACRS CAT B**LTR ONLY(16)

R THIS DOCUMENT CONTAINS POOR QUAUTY PAGES DISTRIBUTION: LTR 40 ENCL 0 CONTROL NBR: 7 A 1 '2 ^ 0 22 -

SIZE: 2P gc3

    • o********+*+******-t************** THE END ********************************-

8004280767 p

9 HELpriva ourta sagsNssa A R N. A N S A S P O W E R & L I G H T C O M P A N Y A O. BCX 551

  • UTTLE ACCK. AAKANGAs 722C3 . (501) 3714191 April 27, 1978 OONALO A. RUETER oiAeCTCn TELEC0PY TECHNICAL ANO ENVIACNMENTAL sEAVCES 1-048-23 c h;

Director of Nuclear Reactor Regulation ATTN:

Mr. R. W. Reid, Chief . :< -

Operating Reactors Branch #4 y =

c U. S. Nuclear Regulatory Commission ei -

'j Washignton, D. C. 20555 0 gr G

Subject:

Arkansas Nuclear One-Unit 1 Docket No. 50-313 License No. DPR-51 ECCS Small Breaks Analysis (File: 1510, 0520)

Gentiemen: _.

In response to recent communications with your staff, we wish to submit a re-evaluation of Evaluation 2 attached to our letter of April 17, 1978. That re-evaluation is as follows:

Assumptions 1. Loss of Offsite Power

2. Operator Action Allowed
3. Single Failure (loss of DG)

Upon initiation of an ESFAS, the operator is to:

1. Verify flow through all four (4) injection legs. If verified, proceed with normal Emergency Procedure.
2. If unable to verify flows, dispatch operator (s) immediately to manually open the HPI discharge c'oss connect valve and the HPI isolation valves on the legs with no flow indication.
3. Throttle HPI isolation valves as required to balance flow and meer run out limits.

78124UU44 0( 0 1,

Y&\ h a