ML19242A444
| ML19242A444 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 07/11/1979 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| NUDOCS 7908020023 | |
| Download: ML19242A444 (2) | |
Text
N-TENNESSEE VALLEY AUTHORITY CHATTANOOGA.TENNNbs 45t~
400 Chastnut Street Tower II q
July 11, 19 4b Mr. James P.
O'Reilly, Director Office of Inspection and Enforcement U.S.
Nuclear Regalatory Commission Region II - Suite 3100 101 Marietta Street Atlanta, Georgia 30303 Dear Mr. O'Reilly 0FFICE OF INSPECTION AND ENFORCEMENT BULLETIN 79 RII:JPO 50-259, -260, -296 - BROWNS FERRY NUCLEAR PLANT UNITS 1,
2, AND 3 This is in further response to your April 13, 1979, letter w:li c h transmitted OIE Bulletin 79-08.
In our April 24, 1979, letter to you from J.
E.
Gilleland, we inadvertently omitted our response to item 11 of the subject bulletin.
Enclosed is a revision to page 13 of our original response dated April 24, 1979, which addresses item 11.
We apologize for any inconvenience that this error might have caused.
If you have any further questions, please get in touch with Tish Jenkins at FTS 854-2014.
Very truly yours, TENNESSEE VALLEY AUTHORITY b% n1p.,
L.
M.
Mil s,
Mghager Nuclear Regulation and Safety E closure cc Office of Inspection and Enforcement (Enclosure)
Division of Reactor Operations Inspection
.S.
Nuclear Regulatory Commission Washington, DC 20555 a-C ;! O
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7 N47 W II C A l,('I,7 An f Qual Or portunity Employer
t To remove hydrogen fron an isolated reactor vessel, the main steam relief valves may be remotely cperated to vent the hydrogen tc the suppression pool.
In addition, the reactor vessel nas a head vent line with valves remotely operated from the control room.
The primary containment is normally inerted with nitrogen to maintain low oxygen concentration.
Redundant instrumentation is available to continuously monitor both the oxynen and hydrogen concentrations in the torus and dryvell.
Nitrogen stored in tanks as part of the containment atmospheric dilutica (CAD) system is rvailable for controllinq hydrogen and oxygen concentration.
Existing operating procedures adequately prescribe the operation of the CAD system to prevent buildup of detonatable gares in the pri
.y containment, ll.
Propose changes, as required, to those technical specifications which must be modified as a result of your implementing the items above.
Response to Question 11 TVA does not believe that additional technical specifications or proposed changes to existing technical specifications are required as a result of implementing i t. e m s 1 through 10 above.
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