Call Number (LC) Title Results
Y 3.N 88:56-2/89-53 Rupture of extraction steam line on high pressure turbine. 1
Y 3.N 88:56-2/89-54 Potential overpressurization of the component cooling water system. 1
Y 3.N 88:56-2/89-55 Degradation of containment isolation capability by a high-energy line break. 1
Y 3.N 88:56-2/89-56 Questionable certification of material supplied to the Defense Department by nuclear suppliers. 1
Y 3.N 88:56-2/89-57 Unqualified electrical splices in vendor-supplied environmentally qualified equipment. 1
Y 3.N 88:56-2/89-58 Disablement of turbine-driven auxiliary feedwater pump due to closure of one of the parallel steam supply valves. 1
Y 3.N 88:56-2/89-59 Suppliers of potentially misrepresented fasteners. 1
Y 3.N 88:56-2/89-60 Maintenance of teletherapy units. 1
Y 3.N 88:56-2/89-61 Failure of Borg-Warner gate valves to close against differential pressure. 1
Y 3.N 88:56-2/89-62 Malfunction of Borg-Warner pressure seal bonnet check valves caused by vertical misalignment of disk. 1
Y 3.N 88:56-2/89-63 Possible submergence of electrical circuits located above the flood level because of water intrusion and lack of drainage. 1
Y 3.N 88:56-2/89-64 Electrical bus bar failures. 1
Y 3.N 88:56-2/89-65 Potential for stress corrosion cracking in steam generator tube plugs supplied by Babcock and Wilcox. 1
Y 3.N 88:56-2/89-66 Qualification life of solenoid valves. 1
Y 3.N 88:56-2/89-67 Loss of residual heat removal caused by accumulator nitrogen injection. 1
Y 3.N 88:56-2/89-68 Evaluation of instrument setpoints during modifications. 1
Y 3.N 88:56-2/89-69 Loss of thermal margin caused by channel box bow. 1
Y 3.N 88:56-2/89-70 Possible indications of misrepresented vendor products. 1
Y 3.N 88:56-2/89-71 Diversion of the residual heat removal pump seal cooling water flow during recirculation operation following a loss-of-coolant accident. 1
Y 3.N 88:56-2/89-72 Failure of licensed senior operators to classify emergency events properly. 1