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  1. Information Notice 1993-50, Extended Storage of Sealed Sources (Issue date: 8 July 1993, Topic: Brachytherapy)
  2. Information Notice 1993-51, Repetitive Overspeed Tripping of Turbine-Driven Auxiliary Feedwater Pumps (Issue date: 9 July 1993, Topic: Stroke time)
  3. Information Notice 1993-52, Draft NUREG-1477, Voltage-Based Interim Plugging Criteria for Stem Generator Tubes. (Issue date: 14 July 1993)
  4. Information Notice 1993-53, Effect of Hurricane Andrew on Turkey Point Nuclear Generating Station and Lessons Learned (Issue date: 29 April 1994, Topic: Earthquake)
  5. Information Notice 1993-54, Motor-Operated Valve Actuator Thrust Variations Measured with a Torque Thrust Cell and a Strain Gage (Issue date: 20 July 1993)
  6. Information Notice 1993-55, Potential Problem with Main Steamline Break Analysis for Main Steam Vaults/Tunnels (Issue date: 21 July 1993)
  7. Information Notice 1993-56, Weakness in Emergency Operating Procedures Found as Result of Steam Generator Tube Rupture (Issue date: 22 July 1993)
  8. Information Notice 1993-56, Weakness in Emergency Operating Procedures Found As Result of Steam Generator Tube Rupture (Issue date: 22 July 1993)
  9. Information Notice 1993-57, Software Problems Involving Digital Control Console Systems at Non-Power Reactors (Issue date: 23 July 1993)
  10. Information Notice 1993-58, Nonconservatism in Low-Temperature Overpressure Protection for Pressurized-Water Reactors (Issue date: 26 July 1993)
  11. Information Notice 1993-59, Unexpected Opening of Both Doors in an Airlock (Issue date: 26 July 1993)
  12. Information Notice 1993-60, Reporting Fuel Cycle and Materials Events to the NRC Operations Center (Issue date: 4 August 1993, Topic: Brachytherapy)
  13. Information Notice 1993-61, Excessive Reactor Coolant Leakage Following a Seal Failure in a Reactor Coolant Pump or Reactor Recirculation Pump (Issue date: 9 August 1993, Topic: Hydrostatic)
  14. Information Notice 1993-62, Thermal Stratification of Water in BWR Reactor Vessels (Issue date: 10 August 1993, Topic: Reactor Vessel Water Level)
  15. Information Notice 1993-63, Improper Use of Soluble Weld Purge Dam Material (Issue date: 11 August 1993, Topic: Hydrostatic)
  16. Information Notice 1993-64, Periodic Testing and Preventive Maintenance of Molded Case Circuit Breakers (Issue date: 12 August 1993)
  17. Information Notice 1993-65, Reactor Trips Caused by Breaker Testing with Fault Protection Bypassed (Issue date: 13 August 1993)
  18. Information Notice 1993-66, Switchover to Hot-Leg Injection Following a Loss-Of-Coolant Accident in Pressurized Water Reactors (Issue date: 16 August 1993, Topic: Boric Acid)
  19. Information Notice 1993-67, Bursting of High Pressure Coolant Injection Steam Line Rupture Discs Injures Plant Personnel (Issue date: 16 August 1993)
  20. Information Notice 1993-68, Failure of Pump Shaft Coupling Caused by Temper Embrittlement During Manufacture (Issue date: 1 September 1993)
  21. Information Notice 1993-69, Radiography Events at Operating Power Reactors (Issue date: 2 September 1993, Topic: High Radiation Area, Brachytherapy)
  22. Information Notice 1993-70, Degradation of Boraflex Neutron Absorber Coupons (Issue date: 10 September 1993)
  23. Information Notice 1993-71, Fire at Chernobyl Unit 2 (Issue date: 13 September 1993, Topic: Chernobyl)
  24. Information Notice 1993-72, Observations from Recent Shutdown Risk and Outage Management Pilot Team Inspections (Issue date: 14 September 1993, Topic: Probabilistic Risk Assessment, Chernobyl)
  25. Information Notice 1993-73, Criminal Prosecution of Nuclear Suppliers for Wrongdoing (Issue date: 15 September 1993, Topic: Chernobyl, Brachytherapy)
  26. Information Notice 1993-74, High Temperatures Reduce Limitorque AC Motor Operator Torque (Issue date: 16 September 1993, Topic: Stroke time, Chernobyl)
  27. Information Notice 1993-75, Spurious Tripping of Low-Voltage Power Circuit Breakers with GE RMS-9 Digital Trip Units (Issue date: 17 September 1993, Topic: Boric Acid, Chernobyl)
  28. Information Notice 1993-76, Inadequate Control of Paint and Cleaners for Safety-Related Equipment (Issue date: 21 September 1993, Topic: Chernobyl)
  29. Information Notice 1993-77, Human Errors That Result in Inadvertent Transfers of Special Nuclear Material at Fuel Cycle Facilities (Issue date: 4 October 1993, Topic: Coatings, Anchor Darling, Chernobyl, Brachytherapy, Loctite)
  30. Information Notice 1993-78, Inoperable Safety Systems at a Non-Power Reactor (Issue date: 4 October 1993, Topic: Chernobyl)
  31. Information Notice 1993-79, Core Shroud Cracking at Beltline Region Welds in Boiling-Water Reactors (Issue date: 30 September 1993, Topic: Chernobyl)
  32. Information Notice 1993-81, Implementation of Engineering Expertise on Shift (Issue date: 12 October 1993)
  33. Information Notice 1993-82, Recent Fuel & Core Performance Problems in Operating Reactors (Issue date: 12 October 1993)
  34. Information Notice 1993-83, Potential Loss of Spent Fuel Pool Cooling After a Loss-of-Coolant Accident or a Loss of Offsite Power (Issue date: 24 August 1995, Topic: Safe Shutdown)
  35. Information Notice 1993-84, Determination of Westinghouse Reactor Coolant Pump Seal Failure (Issue date: 20 October 1993)
  36. Information Notice 1993-85, Problems with X-Relays in DB- and DHB-Type Circuit Breakers Manufactured by Westinghouse (Issue date: 20 October 1993)
  37. Information Notice 1993-85, Problems With X-Relays in DB- And DHB-Type Circuit Breakers Manufactured by Westinghouse (Issue date: 20 October 1993)
  38. Information Notice 1993-86, Identification of Isotopes in the Production and Shipment of Byproduct Material at Non-Power Reactors (Issue date: 29 October 1993)
  39. Information Notice 1993-87, Fuse Problems with Westinghouse 7300 Printed Circuit Cards (Issue date: 4 November 1993)
  40. Information Notice 1993-88, Status of Motor-Operated Valve Performance Prediction Program by the Electric Power Research Institute (Issue date: 30 November 1993)
  41. Information Notice 1993-89, Potential Problems with BWR Level Instrumentation Backfill Modifications (Issue date: 26 November 1993, Topic: Reactor Vessel Water Level)
  42. Information Notice 1993-90, Unisolatable Reactor Coolant System Leak Following Repeated Appeated Applications of Leak Sealant (Issue date: 1 December 1993)
  43. Information Notice 1993-91, Misadjustment Between General Electric 4.16-kV Circuit Breakers & Their Associated Cubicles (Issue date: 3 December 1993)
  44. Information Notice 1993-92, Plant Improvements to Mitigate Common Dependencies in Component Cooling Water Systems (Issue date: 7 December 1993, Topic: Probabilistic Risk Assessment)
  45. Information Notice 1993-93, Inadequate Control of Reactor Coolant System Conditions During Shutdown (Issue date: 8 December 1993)
  46. Information Notice 1993-95, Storm-Related Loss of Offsite Power Events Due to Salt Buildup on Switchyard Insulators (Issue date: 13 December 1993, Topic: High winds, Coatings)
  47. Information Notice 1993-96, Improper Reset Causes Emergency Diesel Generator Failures (Issue date: 14 December 1993)
  48. Information Notice 1993-97, Failures of Yokes Installed on Walworth Gate and Globe Valves (Issue date: 17 December 1993)
  49. Information Notice 1993-98, Motor Brakes on Valve Actuator Motors (Issue date: 20 December 1993)
  50. Information Notice 1993-99, Undervoltage Relay & Thermal Overload Setpoint Problems (Issue date: 21 December 1993)
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