Alert

Due to a lapse in appropriations, the NRC has ceased normal operations. However, excepted and exempted activities necessary to maintain critical health and safety functions—as well as essential progress on designated critical activities, including those specified in Executive Order 14300—will continue, consistent with the OMB-Approved NRC Lapse Plan.

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Displaying 1 - 10 of 59

Summary of Responses to NRC Bulletin 87-01, "Thinning of Pipe Walls in Nuclear Power Plants"

… Responses to NRC Bulletin 87-01, "Thinning of Pipe Walls in Nuclear Power Plants" … UNITED STATES NUCLEAR REGULATORY … discharge piping Arkansas 2 PWR December 1978 undefined Calvert Cliffs 1 PWR October 1974 elbows, reducers, straight runs …

Completion of Phase II of "Control of Heavy Loads at Nuclear Power Plants" NUREG-0612 (Generic Letter No. 85-11)

… Completion of Phase II of "Control of Heavy Loads at Nuclear Power Plants" NUREG-0612 (Generic Letter No. 85-11) … reactors (Davis Besse, Indian Point 2, Arkansas 1 and 2 and Calvert Cliffs 1 and 2) chose to take credit for a combination of …

Request for Action Related to Resolution of Unresolved Safety Issue A-47 "Safety Implication of Control Systems in LWR Nuclear Power Plants" Pursuant to 10 CFR 50.54(f) (Generic Letter 89-19)

… Issue A-47 "Safety Implication of Control Systems in LWR Nuclear Power Plants" Pursuant to 10 CFR 50.54(f) (Generic … "An Assessment of the Safety Implications of Control at the Calvert Cliffs - 1 Nuclear Plant" Vol. 1 and 2. 11. Letter Report …

Bulletin 75-04: Cable Fire at Browns Ferry Nuclear Power Station

… Bulletin 75-04: Cable Fire at Browns Ferry Nuclear Power Station … BL75004 UNITED STATES NUCLEAR … close of business on March 24, 1975. Arkansas 1 Brunswick 2 Calvert Cliffs 1 Cook 1 Hatch 1 Indian Point 2 Millstone 1 San …

Bulletin 82-02: Degradation of Threaded Fasteners in the Reactor Coolant Pressure Boundary of PWR Plants

… OMB NO: 50-0086 Expiration Date: 5/30/86 UNITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND … Vendor Mode of Failure * Pressurizer manway closure studs 2 Calvert Cliffs 2 (1981) C-E St. Lucie 1 (1978) C-E BC BC Steam …

Information Notice No. 84-58: Inadvertent Defeat of Safety Function Caused by Human Error Involving Wrong Unit, Wrong Train, or Wrong System

… or Wrong System … SSINS No.: 6835 IN 84-58 UNITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND … He instead deenergized the breakers of five Unit 1 valves. Calvert Cliffs Electricians began work on Unit 2 control 04/17/82 …