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Responds to 890811 ltr re appeal of NRC position concerning use of Rosemont transmitter trip units & issue of degree of diversity required when implementing hardware on BWR,per ATWS rule (10CFR50.62).Listed info requested.

Accession Number: ML20247D324

Date Released: Thursday, October 24, 2024

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• ML20247D320 - Responds to 890811 ltr re appeal of NRC position concerning use of Rosemont transmitter trip units & issue of degree of diversity required when implementing hardware on BWR,per ATWS rule (10CFR50.62).Listed info requested. (7 page(s), 8/31/1989)
• ML20247D340 - Forwards appeal of BWR Owners Group re NRC decision requiring total equipment diversity under ATWS Rule (10CFR50.62). (26 page(s), 8/11/1989)