ML20031F484
| ML20031F484 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 10/05/1981 |
| From: | Ippolito T Office of Nuclear Reactor Regulation |
| To: | Parris H TENNESSEE VALLEY AUTHORITY |
| References | |
| IEB-80-06, IEB-80-6, NUDOCS 8110190954 | |
| Download: ML20031F484 (3) | |
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Lcket Nos. 50-259 50-260 50-096 otT 5 GM I
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gf NEk Hr. Hugh G. Parris h
Manager of Power Tennedsee Valley Authority Og7 500A Chestnut Street Tower II 8 1987
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Chattanooga, TN 37401
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Dear Mr. Parris:
ms, sN' RE:
Browns Ferry - I&E Bulletin 80-06, ESF Reset Controls
- 'Ilf-Reference is made to your submittal of August 11, 1980 and supplemental submittals in response to I&E Bulletin 80-06 on " Engineered Safety Feature (ESF) Reset Controls." To complete our review, we need the information identified in the enclosure to this letter. To minimize your effort in responding to this request and to provide you a full understanding of what we need to wrap up this generic issue. I suggest a conference call with our technical reviewers and your staff. A written response is requested within 45 days of receipt of this letter.
Sincerely, ORIGIIIAL SIGITEDM Thomas A. Ippolito, Chief Operating Reactors Branch #2 Division of Licensing
Enclosure:
Request for Distribution:
Additional Information Docket File NRC PDR cc: w/ enclosure Local PDR See next page ORB #2 Reading D. Eisenhut 0 ELD IE (3)
R. Clark S. Norris NSIC TERA
8110190954 ACRS (10)
P. Bender sticoh f'DR ADOCK J. Heltemes 050002 9 Sid Miner d
POR Gray File OFFICE )
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6 Mr. Hugh G. Parris
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cc:
H. S. Sanger, Jr., Esquire General Counsel Tennessee Valley Authority 400 Comr. terce Avenue E llB 33 C Knoxville, Ter.nessee 37902 Mr. Ron Rogers Tennessee Valley Authority 400 Chestnut Street', Tower II Chattanooga, Tennessee 37401 Mr. H. N. Culver 249A HBD 400 Commerce Avenue Tennessee Valley Authority
' Knoxville, Tennessee 37902 Robert F. Sullivan U. S. Nuclear Regulatory Commission P. O. Box 1863 Decatur, Alabama 35602 Athens Public Library South and Forrest Athens, Alabama 35611
~ Mrs John F. Cox l'ennesiee Valley Authority k'9-D 207C 400 Commerce Avenue Knoxville, Tennessee 37902 Mr. Herbert Acercrombie Tennessee Valley Acthority P. O. Box 2000
_. Decatur, Alabama 35602
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t Request for Additional Information Browns Ferry Unit Noo.1, 2 and 3 Docket Nos. 50.259, 50- 260 and 50-296
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1.
Have all systems serving a sarety-related function been reviewed?
2.
Provide a schedule for the required testing of all systems serving a safety-related function, or provide the results of the t.1st if it has been completed.
3.
Concerning the RHR system (Ref:
Licensee's letter dated September 10, 1980): Do valves FCV-74-53 and FCV-74-67 change states (go shut) upon reset of an ESF signal? Which ESF signal (s) are involved?
What is reset switch 10A-532A?
What do valves FCV-74-53, FCl-74-67 FCV-74-47 and FCV-721-48 control?
4.
Concerning the RCIC system (Ref:
Licensee's letters dated August 11,1980 and September 10, 1980):
Is the turbine trip solenoid number "XY-71-9". or "XX-71-97 5.
Concerning 480V Load-Shed logic (R e f,:
Licensee's letter dated January 14, 1981):
What are the results of your further evaluation of the 480V Load-Shed logic? What loads are retied to the 480V shutdown boards
- 'upon ESF reset?
r.
6.
What is your schedule for modification?
Provide a complete, narrative description of the modifications that will or have been implemented.
Include a commitment to test the modifications after installation.
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