ML19241B349
| ML19241B349 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 04/27/1979 |
| From: | Williams F Office of Nuclear Reactor Regulation |
| To: | Eisenhut D Office of Nuclear Reactor Regulation |
| References | |
| FOIA-79-98 NUDOCS 7907160177 | |
| Download: ML19241B349 (3) | |
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Date 4/27/79 MEMORANDUM FOR: Darrell G. Eisenhut, Deputy Director, Division of Operating Reactors THRU:
Steven A. Varga, Chief, Light Water Reactors Branch No. 4, Division of Project Management FROM:
F. J. Williams, Jr., Technical Coordinator, Div!sion of Project Management
SUBJECT:
PROBLEMS - TMI BULLETIN RESP 0N Millstone 2' h Bulletin 79-06B
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Source Mnnte ennner Resolution required for safety evaluatiobo_
Problem - Generic - The ORPM thinks that the operator training regarding the TMI-2 incident as required by the Bulletin should become a part of basic operator training and should be included in the Operating Licensing Branch requirements to ensure consistency, adequate lesson plan, examinations, inclusion in requalifications etc.
Assessment by Problem Group -
Good suggestion - long term item.
Additional information available - N/A 5522S9 y
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5 Date April 27, 1979 MEMORANDUM FOR: Darrell G. Eisenhut, Deputy Director, Division of Operating Reactors THRU:
Steven A. Varga, Chief, Light Water Reactors Branch No. 4, Division of Project Management FROM:
F. J. Williams, Jr., Technical Coordinator, Division of Project Management
SUBJECT:
PROBLEMS - TMI BULLETIN RESPONSES g h.
Bulletin 79-06B
, Plant Millstone 2 Source S. Varga Review Group
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Resolution required for safety evaluation No Problem - Generic - Licensee requested guidance for interpretation of "the reactor is not in a controlled or expected condition of operation".
Review group is responding per enclosure.
If the Bulletin writers have guidance on this point it should be made available.
Assessment by Problem Group Not of immediate concern.
If guidance is available, good. We believe that interpretation will remain a judgement call.
Additional information available - N/A.
552300 44 8 % ha, J.J. Williams,[Nr.
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E. Case R. Tedesco R. Mattson S. Varga
-/ D. Ross F. Williams S. Hanauer
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NNEC0 responds that a revision to the administrative procedure on communications and outside assistance has been approved.
This revision incorporates the required notifications and establishment of. communication channels requested in the bulletin.
The NNEC0 response requests more specific guidance on "Immediate notification" circumstances and notes that the Bulletin statement is a general statement subject to interpre-tation. Ne agree that the Bulletin statement is, of necessity, a general statement and was prepared in light of our knowledge of the early sequence of events at TMI-2 prior to NRC notifica-tion. He leave it to the licensee to likewise review the TMI-2 events and, using that as guidance together with his experience in routine operations and the recognition of non-routine events, promulgate his own interpretation of prompt NRC notification, keeping in mind NRC's role in these matters, 11.
NNECO has reviewed the operating modes and procedures used to deal with significant amounts of hydrogen gas that could be generated and collect in the RCS or released to the containment.
They describe these methods that they use for degassing the primary coolant system (the radwaste deqasifier, pressurizer steam space vent, and volume control tank gas space purge).
They also described two methods for hydrogen removal from containment (hydrogen recombiner and containment purge).
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