Issue 60: Lamellar Tearing of Reactor Systems Structural Supports
DESCRIPTION
The issue of lamellar tearing was originally addressed in NUREG-0410[1]in connection with Technical Activity No.
Issue 59: Technical Specification Requirements for Plant Shutdown when Equipment for Safe Shutdown is Degraded or Inoperable
DESCRIPTION
Historical Background
As a result of the loss of high head injection capability at McGuire Unit 1 on February 12, 1982, this issue was raised by
Issue 56: Abnormal Transient Operating Guidelines as Applied to a Steam Generator Overfill Event
DESCRIPTION
On April 8, 1981, while operating at 100% power, the Arkansas Nuclear One, Unit 1 experienced a moderate feedwater-overfill transient in one of its once-through steam generators.
Issue 55: Failure of Class 1E Safety-Related Switchgear Circuit Breakers to Close on Demand
DESCRIPTION
Historical Background
In August 1982, AEOD reviewed a number of LERs related to Class 1E safety related switchgear circuit breakers and found a h
Issue 54: Valve Operator-Related Events Occurring During 1978, 1979, and 1980
DESCRIPTION
Historical Background
In December 1981, AEOD completed a survey of valve operator-related events that occurred during 1978, 1979,
Issue 53: Consequences of a Postulated Flow Blockage Incident in a BWR
DESCRIPTION
Historical Background
In response to a 1967 ACRS concern relative to the potential of melting and subsequent disintegration of a portion of a fue
Issue 52: SSW Flow Blockage by Blue Mussels
DESCRIPTION
This issue was raised in an AEOD memorandum[1]to NRR in May 1982 and addressed the problem of flow blockage by blue mussels
Issue 51: Proposed Requirements for Improving the Reliability of Open Cycle Service Water Systems
DESCRIPTION
Historical Background
This issue was raised in a DL memorandum[1]to DST in March 1982 and addressed the subject of s