ML19210B170
| ML19210B170 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 09/08/1975 |
| From: | Reid R Office of Nuclear Reactor Regulation |
| To: | Arnold R METROPOLITAN EDISON CO. |
| References | |
| NUDOCS 7911040099 | |
| Download: ML19210B170 (1) | |
Text
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Docket DEisenhut NRC PDR 54,'S Local PDR ORB #4 rdg
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Docket No. 50-289 KRGoller TJCarter OELD Metropolitan Edison Company ATIN: Mr. R. C. Arnold OISS (3)
Vice President - Generation RWReid i
DNBridges l
P. O. Box 542 Reading, Pennsylvania 19603 RIngram Abernathy i
SVarga Gentlemen:
ACRS (16)
We have been advised by the Babcock and Wilcox (B6W) Company tnat an
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updated analysis of the hydraulic performance of the Sodium Thiosulfat i
Reactor Building Spray System indicates a possible deficiency in the perfo1mance of that system in that sodium hydroxide and sodium thio l
tanks may empty prior to the emptying of the borated water storage tank.
j In turn, the operation of the spray system without sodit:n hydroxide or thiosulfate could have a significant effect on the calculated off-site doses in the event of a 1DCA and may not be consistent with your FSAR.
l Since the B4W analysis is sensitive to the as-built piping configuration of each unit it will be necessary that each facility do i
You are requested to advise us of the results of your analysis in this area including a description of any propos in the FSAR.
d the system and potential deviation in the tank drawdown you are also reques testing programs.
to address the matter of potential ptarp damage duetto cavita from mismatched drawdowns.
30 days of receipt of this letter.
Sincerely, Robert W. Reid, Chief Operating Reactors Branch #4 Division of Reactor Licensing cc: See next page p
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once W u. s. movsamment rain nne orricas is74.sas see Forum AIC 5LS (Rev. 9-55) AECM 0240 7911040097/O