| Nuclear Regulatory Commission

Issue 38: Potential Recirculation System Failure as a Consequence of Ingestion of Containment Paint Flakes or Other Fine Debris

DESCRIPTION

Historical Background

This issue was identified[1]when AEOD expressed concerns about

Issue 37: Steam Generator Overfill and Combined Primary and Secondary Blowdown

DESCRIPTION

In AEOD/CO05,[1]AEOD identified potential safety problems concerning steam generator overfill due to control system failures

Issue 36: Loss of Service Water

DESCRIPTION

Historical Background

On June 19, 1981, AEOD issued a preliminary report[1]on the inc

Issue 35: Degradation of Internal Appurtenances in LWRs

DESCRIPTION

Historical Background

This issue was identified[1]after AEOD completed a study on int

Issue 34: RCS Leak

DESCRIPTION

Historical Background

This issue was raised by AEOD[1]^,

Issue 33: Correcting Atmospheric Dump Valve Opening Upon Loss of Integrated Control System Power

DESCRIPTION

This issue was identified in an AEOD memorandum[1]to NRR in May 1980.

Issue 32: Flow Blockage in Essential Equipment Caused by Corbicula

DESCRIPTION

This issue was raised in an AEOD memorandum[1]to NRR and OIE in October 1980 and addressed the problem of flow blockage by A

Issue 31: Natural Circulation Cooldown

DESCRIPTION

Historical Background

This issue corresponds to AEOD recommendation 4 highlighted in an AEOD memorandum

Issue 30: Potential Generator Missiles - Generator Rotor Retaining Rings

DESCRIPTION

Historical Background

The April 13, 1979 incident at Sweden's Barseback-1 nuclear plant involving the failure of a generator rotor retaining ring was identified by AEOD in 1982

Issue 29: Bolting Degradation or Failure in Nuclear Power Plants

DESCRIPTION

Historical Background

Prior to 1981, the number of bolting-related incidents reported by licensees was on the increase.

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