Issue 49: Interlocks and LCOs for Redundant Class 1E Tie-Breakers
DESCRIPTION
Historical Background
In an AEOD memorandum[1]to NRR, it was concluded that the design of the Point Beach Nuclear
Issue 48: LCO for Class 1E Vital Instrument Buses in Operating Reactors
DESCRIPTION
An AEOD memorandum[1]to NRR on July 15, 1980, identified the concern that some operating nuclear power plants do not have technical specifications or Adm
Issue 47: Loss of Offsite Power
DESCRIPTION
Historical Background
On April 7, 1980, Arkansas Nuclear One (ANO) Units 1 and 2 experienced a significant event resulting from a loss of offsite power.
Issue 46: Loss of 125 Volt DC Bus
DESCRIPTION
Historical Background
This proposed generic issue has its origin in a January 1981 event at Millstone Unit 2.[1]An operator inadvertently opened
Issue 45: Inoperability of Instrumentation Due to Extreme Cold Weather
DESCRIPTION
Concerns for inoperability of instrumentation due to extreme cold weather were raised[1]by AEOD after an event at Arkansas
Issue 44: Failure of Saltwater Cooling System
DESCRIPTION
While operating at 100% power on March 10, 1980, San Onofre Unit 1 experienced a complete loss of the salt water cooling system.
Issue 43: Reliability of Air Systems
DESCRIPTION
Historical Background
This issue was initiated in response to an immediate action memorandum[1]issued by AEOD in S
Issue 42: Combination Primary/Secondary System LOCA
DESCRIPTION
AEOD issued a memorandum[1]in which a potential safety issue involving combined primary and secondary system LOCAs was raised.
Issue 41: BWR Scram Discharge Volume Systems
DESCRIPTION
Historical Background
On June 28, 1980, during a routine shutdown of the Browns Ferry Unit 3 reactor, a manual scram from approximately 36% power failed to insert about 40% o
Issue 40: Safety Concerns Associated with Pipe Breaks in the BWR Scram System
DESCRIPTION
Historical Background
On April 3, 1981, AEOD published draft NUREG-0785, "Safety Concerns Associated with Pipe Breaks in the