Bulletin 89-01: Supplement 1, Failure of Westinghouse Steam Generator Tube Mechanical Plugs
… … OMB No.: 3150-0011 NRCB 89-01, Supplement 1 UNITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF NUCLEAR REACTOR … complete listings of plug lifetimes categorized by plant, date of installation, and heat number. The listed … of Inconel 600 during the summer and fall of 1990. At the Sequoyah Nuclear Power Plant, Unit 1, five plugs fabricated …