United States Nuclear Regulatory Commission - Protecting People and the Environment

Bulletins: 1978 Index

File Name Date Description
BL-78-12b 03/19/1979 Atypical Weld Material in Reactor Pressure Vessel Welds
BL-78-14 12/19/1978 Deterioration of Buna-N Components in ASCO Solenoids
BL-78-13 10/27/1978 Failures in Source Heads of Kay-Ray, Inc., Gauges Models 7050, 7050B, 7051, 7051B, 7060, 7060B, 7061 and 7061B
BL-78-12a 11/24/1978 Atypical Weld Material in Reactor Pressure Vessel Welds
BL-78-12 09/26/1978 Atypical Weld Material in Reactor Pressure Vessel Welds
BL-78-11 07/21/1978 Examination of Mark I Containment Torus Welds
BL-78-10 06/27/1978 Bergen-Paterson Hydraulic Shock Suppressor Accumulator Spring Coils
BL-78-09 06/14/1978 BWR Drywell Leakage Paths Associated with Inadequate Drywell Closures
BL-78-08 06/12/1978 Radiation Levels from Fuel Element Transfer Tubes
BL-78-07 06/12/1978 Protection Afforded by Air-Line Respirators and Supplied-Air Hoods
BL-78-06 05/31/1978 Defective Cutler-Hammer Type M Relays with DC Coils
BL-78-05 04/14/1978 Malfunctioning of Circuit Breaker Auxiliary Contact Mechanism – General Electric Model CR105X
BL-78-04 02/21/1978 Environmental Qualification of Certain Stem Mounted Limit Switches Inside Reactor Containment
BL-78-03 02/08/1978 Potential Explosive Gas Mixture Accumulations Associated with BWR Offgas System Operations
BL-78-02 01/30/1978 Terminal Block Qualification
BL-78-01 01/16/1978 Flammable Contact – Arm Retainers in G.E. CR120A Relays
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