| Nuclear Regulatory Commission

Issue 48: LCO for Class 1E Vital Instrument Buses in Operating Reactors

An AEOD memorandum[1]to NRR on July 15, 1980, identified the concern that some operating nuclear power plants do not have te

On April 7, 1980, Arkansas Nuclear One (ANO) Units 1 and 2 experienced a significant event resulting from a loss of offsite

This proposed generic issue has its origin in a January 1981 event at Millstone Unit 2.[1]An o

Concerns for inoperability of instrumentation due to extreme cold weather were raised[1]by AE

While operating at 100% power on March 10, 1980, San Onofre Unit 1 experienced a complete loss of the salt water cooling system.

This issue was initiated in response to an immediate action memorandum

AEOD issued a memorandum[1]in which a potential safety issue involving combined primary and secondary system LOCAs was raise

On June 28, 1980, during a routine shutdown of the Browns Ferry Unit 3 reactor, a manual scram from approximately 36% power

On April 3, 1981, AEOD published draft NUREG-0785, "Safety Concerns Associated with Pipe Breaks in the

This issue was identified in a 1980 AEOD memorandum[1]and concerned the slow loss of control air pressure in the pneumatic c