Generic Technical Activity A-12 Fracture Toughness (Generic Letter 80-46)
… be forwarded to Mr. Richard Snaider, Generic Issues Branch, Nuclear Regulatory Commission, Washington, D.C. 20555, by … 1 and 2: 12-inch diameter A-53 Schedule 100 pip columns. J. Prairie Island Units 1 and 2: 250 CYM 0.5-inch diameter "heli- coil …