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… Information Notice No. 83-42: Reactor Mode Switch Malfunctions … is required at this time. Description of Circumstances: Susquehanna 1 Events: On March 22, 1983, Susquehanna Unit 1 … position, the group 1 isolation signal from low main steam line pressure (850 psig) should be bypassed. When the …

… Information Notice No. 82-20: Check Valve Problems … used in the low-pressure safety injection system (LPSI). Susquehanna Steam Electric Station, which is under construction, … Information Notice No. 82-20: Check Valve Problems …

… Information Notice No. 82-26: RCIC and HPCI Turbine Exhaust Check Valve Failures … (LER 80-101/03L) a RCIC system turbine trip at Brunswick Steam Electric Plant, Unit 2, while conducting a RCIC system … failure of the RCIC turbine exhaust swing check valve at Susquehanna Steam Electric Station, Unit 1, while conducting …

… produced by another manufacturer. 3. On April 8, 1977, Iowa Electric Light and Power Company submitted event report No. … of Pacific Scientific Company mechanical snubbers on main steam and feedwater systems at Turkey Point Plant Units 3 … Unit 1; Virgil C. Summer Nuclear Station, Unit 1; and Susquehanna Steam Electric Station, Unit 1 shall perform the …