ML18024A974

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Responds to NRC Re Violation Noted in IE Insp Repts 50-259/79-14,50-260/79-14 & 50-296/79-14. Corrective Actions:Essential Raw Cooling Water RHR Pump Seal Heat Exchanger Valves Will Be Locked
ML18024A974
Person / Time
Site: Browns Ferry  
Issue date: 08/20/1979
From: Mills L
TENNESSEE VALLEY AUTHORITY
To: James O'Reilly
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML18024A973 List:
References
790720-04, 790720-4, NUDOCS 7908270185
Download: ML18024A974 (4)


Text

TENNESSEE VALLEYAUTHOR1TY CHATTANOOGA. TENNESSEE 3740t 400 Chestnut Street Tower II July 20, 1979 Mr. James P. O'Reilly, Director Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Region II Suite 3100 101 Marietta Street Atlanta, Georgia 30303

Dear Mr. O'Reilly:

E d is our response to R.

C. Lewis'une 25, 1979, letter, RII:BTM

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0=259 9-14, 50-260/79-14, and 50-296/79-14, concerning activities at rowns Ferry Nuclear Plant which appeared to be in noncompliance with NRC requirements.

We have reviewed the above inspection report and find no proprietary information in it.

Very truly yours, TENNESSEE VALLEY AUTHORITY L. M. Mills, Mana er Nuclear Regulation and Safety Enclosures VS088 go) Sc, An Equal Opportunity Employer

C I

ENCLOSURE

RESPONSE

TO NRC-OIE LETTER FROM R.

C.

LEWIS TO H. G.

PARRIS DATED JUNE 25, 1979,

{REFERENCE RII:B'IM 50-259/79-14, 50-260/79-14, AND 50-296/79-14)

INFRACTION As required by Technical Specification 6.3.a.l, detailed written procedures, including applicable checkoff lists covering normal operation and components involving nuclear safety of the facility shall be prepared,

approved, and adhered to.

Operating, Instruction 74, "RHR Systems,"

drawing No. 47W811-1, "Flow Diagram RHR System,"

and drawing No. 47W859-1, "Flow Diagram, Emergency Coolihg Water" require certain valves lined up for LPCI mode during normal operation are locked open.

Contrary to the above, two outlet valves

{HCV 74-33 and HCV 74-44) at the discharge side of RHR Heat Exchangers 3B and 3D were locked during the normal operation on May 24, 1979.

Other ESF valves not locked during the operation were EECW RHR Pump Seal Heat Exchanger Valves Nos.

561, 572, and 614.

RESPONSE

Corrective Ste s Taken and Results Achieved Operating Instruction 67 has been changed to require locking of EECW RHR pump seal heat exchanger valves 561, 572, and 614.

RHR heat exchanger 3B and 3D outlet valves have been locked.

Corrective Ste s Taken to Avoid Further Noncom liance The actions taken will avoid further noncompliance.

Date Full Com liance Achieved June 24, 1979

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